{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,13]],"date-time":"2025-11-13T02:05:14Z","timestamp":1762999514800,"version":"build-2065373602"},"reference-count":104,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2019,8,7]],"date-time":"2019-08-07T00:00:00Z","timestamp":1565136000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The study of the fabrication, material selection, and properties of microstructured polymer optical fibers (MPOFs) has long attracted great interest. This ever-increasing interest is due to their wide range of applications, mainly in sensing, including temperature, pressure, chemical, and biological species. This manuscript reviews the manufacturing of MPOFs, including the most recent single-step process involving extrusion from a modified 3D printer. MPOFs sensing applications are then discussed, with a stress on the benefit of using polymers.<\/jats:p>","DOI":"10.3390\/s19163449","type":"journal-article","created":{"date-parts":[[2019,8,7]],"date-time":"2019-08-07T10:56:38Z","timestamp":1565175398000},"page":"3449","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Suspended-Core Microstructured Polymer Optical Fibers and Potential Applications in Sensing"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1375-7830","authenticated-orcid":false,"given":"Wanvisa","family":"Talataisong","sequence":"first","affiliation":[{"name":"Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1186-2637","authenticated-orcid":false,"given":"Rand","family":"Ismaeel","sequence":"additional","affiliation":[{"name":"Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK"},{"name":"National Oceanography Centre, Southampton SO14 3ZH, UK"}]},{"given":"Martynas","family":"Beresna","sequence":"additional","affiliation":[{"name":"Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK"}]},{"given":"Gilberto","family":"Brambilla","sequence":"additional","affiliation":[{"name":"Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK"}]}],"member":"1968","published-online":{"date-parts":[[2019,8,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2027","DOI":"10.1364\/OPEX.12.002027","article-title":"Highly nonlinear dispersion-flattened photonic crystal fibers for supercontinuum generation in a telecommunication window","volume":"12","author":"Saitoh","year":"2004","journal-title":"Opt. Express"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"25723","DOI":"10.1364\/OE.19.025723","article-title":"Demonstration of CO2-laser power delivery through chalcogenide-glass fiber with negative-curvature hollow core","volume":"19","author":"Kosolapov","year":"2011","journal-title":"Opt. Express"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"24","DOI":"10.3389\/fphy.2015.00024","article-title":"Silica hollow core microstructured fibers for beam delivery in industrial and medical applications","volume":"3","author":"Shephard","year":"2015","journal-title":"Front. Phys."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Amiri, I.S., Azzuhri, S.R.B., Jalil, M.A., Hairi, H.M., Ali, J., Bunruangses, M., and Yupapin, P. (2018). Introduction to Photonics: Principles and the Most Recent Applications of Microstructures. Micromachines, 9.","DOI":"10.3390\/mi9090452"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"073003","DOI":"10.1088\/2040-8986\/aac68d","article-title":"Biomedical application of optical fibre sensors","volume":"20","author":"Correia","year":"2018","journal-title":"J. Opt."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"854","DOI":"10.1088\/0957-0233\/12\/7\/318","article-title":"Sensing with microstructured optical fibres","volume":"12","author":"Monro","year":"2001","journal-title":"Meas. Sci. Technol."},{"key":"ref_7","first-page":"010503-1","article-title":"Suspended-Core Holey Fiber for Evanescent-Field Sensing","volume":"46","author":"Webb","year":"2007","journal-title":"SPIE Opt. Eng."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"9034","DOI":"10.1364\/OE.16.009034","article-title":"Theoretical study of liquid-immersed exposed-core microstructured optical fibers for sensing","volume":"16","author":"Afshar","year":"2008","journal-title":"Opt. Express"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"8899","DOI":"10.1364\/AO.54.008899","article-title":"Suspended-core microstructured fiber for refractometric detection of liquids","volume":"54","author":"Nemecek","year":"2015","journal-title":"Appl. Opt."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"3568","DOI":"10.1364\/OE.11.003568","article-title":"Highly nonlinear and anomalously dispersive lead silicate glass holey fibers","volume":"11","author":"Petropoulos","year":"2003","journal-title":"Opt. Express"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"5082","DOI":"10.1364\/OPEX.12.005082","article-title":"Bismuth glass holey fibers with high nonlinearity","volume":"12","author":"Petropoulos","year":"2004","journal-title":"Opt. Express"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"835","DOI":"10.1049\/el:20051501","article-title":"Extruded singlemode, high-nonlinearity, tellurite glass holey fibre","volume":"41","author":"Feng","year":"2005","journal-title":"Electron. Lett."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"183","DOI":"10.1109\/JLT.2005.861114","article-title":"High-Nonlinearity Dispersion-Shifted Lead-Silicate Holey Fibers for Efficient 1-um Pumped Supercontinuum Generation","volume":"24","author":"Leong","year":"2006","journal-title":"J. Lightwave Technol."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1016\/j.optcom.2007.01.004","article-title":"Extruded high-NA microstructured polymer optical fibre","volume":"273","author":"Monro","year":"2007","journal-title":"Opt. Commun."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"101","DOI":"10.1006\/ofte.2000.0355","article-title":"Plastic Optical Fibers: An Introduction to Their Technological Processes and Applications","volume":"7","author":"Zubia","year":"2001","journal-title":"Opt. Fiber Technol."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"649","DOI":"10.1364\/OME.6.000649","article-title":"Fabrication and characterization of polycarbonate microstructured polymer optical fibers for high-temperature-resistant fiber Bragg grating strain sensors","volume":"6","author":"Fasano","year":"2016","journal-title":"Opt. Mater. Express"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"286","DOI":"10.1364\/OME.7.000286","article-title":"Zeonex microstructured polymer optical fiber: Fabrication friendly fibers for high temperature and humidity insensitive Bragg grating sensing","volume":"7","author":"Woyessa","year":"2017","journal-title":"Opt. Mater. Express"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"319","DOI":"10.1364\/OE.9.000319","article-title":"Microstructured polymer optical fibre","volume":"9","author":"Large","year":"2001","journal-title":"Opt. Express"},{"key":"ref_19","first-page":"4299","article-title":"Fabricating metamaterials using the fiber drawing method","volume":"18","author":"Tuniz","year":"2012","journal-title":"J. Vis. Exp."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"4758","DOI":"10.1364\/OE.21.004758","article-title":"High-Tg TOPAS microstructured polymer optical fiber for fiber Bragg grating strain sensing at 110 degrees","volume":"21","author":"Markos","year":"2013","journal-title":"Opt. Express"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1080\/15421400500374930","article-title":"Microstructured Polymer Optical Fibres: New Opportunities and Challenges","volume":"446","author":"Large","year":"2006","journal-title":"Mol. Cryst. Liq. Cryst."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"5541","DOI":"10.1364\/OE.14.005541","article-title":"Casting preforms for microstructured polymer optical fibre fabrication","volume":"14","author":"Zhang","year":"2006","journal-title":"Opt. Express"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"3121","DOI":"10.1002\/app.1978.070221108","article-title":"Drawing and annealing of polypropylene fibers: Structural changes and mechanical properties","volume":"22","author":"Nadella","year":"1978","journal-title":"J. Appl. Polym. Sci."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"7713","DOI":"10.1364\/OE.15.007713","article-title":"Hollow-core polymer fibres with a kagome lattice: Potential for transmission in the infrared","volume":"15","author":"Argyros","year":"2007","journal-title":"Opt. Express"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"5642","DOI":"10.1364\/OE.16.005642","article-title":"Antiresonant reflection and inhibited coupling in hollow-core square lattice optical fibres","volume":"16","author":"Argyros","year":"2008","journal-title":"Opt. Express"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1785","DOI":"10.1016\/j.optcom.2009.02.002","article-title":"Twin-hollow-core optical fibres","volume":"282","author":"Argyros","year":"2009","journal-title":"Opt. Commun."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Filipkowski, A., Pysz, D., Gdula, P., Welikow, K., Harasny, K., Waddie, A.J., Borzycki, K., Kraft, A., Piramidowicz, R., and Stepien, R. (2012, January 16\u201319). Development of Large Core Microstructured Polymer Optical Fiber. Proceedings of the SPIE Photonics Europe, Brussels, Belgium.","DOI":"10.1117\/12.922845"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"4567","DOI":"10.3390\/ma7064567","article-title":"Superlattice Microstructured Optical Fiber","volume":"7","author":"Tse","year":"2014","journal-title":"Materials"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"813","DOI":"10.1364\/OE.9.000813","article-title":"Ring structures in microstructured polymer optical fibres","volume":"9","author":"Argyros","year":"2001","journal-title":"Opt. Express"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"075713","DOI":"10.1088\/2040-8978\/15\/7\/075713","article-title":"Highly birefringent microstructured polymer fibers optimized for a preform drilling fabrication method","volume":"15","author":"Olszewski","year":"2013","journal-title":"J. Opt."},{"key":"ref_31","unstructured":"W\u00f3jcik, G., Gil, M., Czy\u017cewska, L., and Mergo, P. (March, January 28). High Birefringent Microstructured Polymer Optical Fiber with Frozen Stresses. Proceedings of the 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, Szczyrk-Gliwice, Poland."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"3018","DOI":"10.1364\/OL.39.003018","article-title":"Polymer optical microstructured fiber with birefringence induced by stress-applying elements","volume":"39","author":"Mergo","year":"2014","journal-title":"Opt. Lett."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"482","DOI":"10.1016\/j.yofte.2013.06.001","article-title":"Laser-drilled free-form silica fiber preforms for microstructured optical fibers","volume":"19","author":"Becker","year":"2013","journal-title":"Opt. Fiber Technol."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"896","DOI":"10.1364\/JOSAB.28.000896","article-title":"Transmission measurements of hollow-core THz Bragg fibers","volume":"28","author":"Dupuis","year":"2011","journal-title":"J. Opt. Soc. Am. B"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"650","DOI":"10.1038\/nature01275","article-title":"Wavelength-scalable hollow optical fibres with large photonic bandgaps for CO2 laser transmission","volume":"420","author":"Temelkuran","year":"2002","journal-title":"Nature"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"15677","DOI":"10.1364\/OE.16.015677","article-title":"Color-changing and color-tunable photonic bandgap fiber textiles","volume":"16","author":"Gauvreau","year":"2008","journal-title":"Opt. Express"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"2246","DOI":"10.1557\/jmr.2006.0271","article-title":"Consecutive solvent evaporation and co-rolling techniques for polymer multilayer hollow fiber preform fabrication","volume":"21","author":"Gao","year":"2011","journal-title":"J. Mater. Res."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"5838","DOI":"10.1364\/OE.14.005838","article-title":"Drawing of the hollow all-polymer Bragg fibers","volume":"14","author":"Pone","year":"2006","journal-title":"Opt. Express"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"2907","DOI":"10.1038\/s41598-017-01738-9","article-title":"Piezoelectric Microstructured Fibers via Drawing of Multimaterial Preforms","volume":"7","author":"Lu","year":"2017","journal-title":"Sci. Rep."},{"key":"ref_40","first-page":"S94","article-title":"A new approach to mass fabrication technology of microstructured polymer optical fiber preform","volume":"3","author":"Wang","year":"2005","journal-title":"Chin. Opt. Lett."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"25697","DOI":"10.1364\/OE.24.025697","article-title":"Infrared glass-based negative-curvature anti-resonant fibers fabricated through extrusion","volume":"24","author":"Gattass","year":"2016","journal-title":"Opt. Express"},{"key":"ref_42","doi-asserted-by":"crossref","unstructured":"Tao, G., and Abouraddy, A.F. (2014, January 1\u20136). Drawing Robust Infrared Optical Fibers from Preforms Produced by Efficient Multimaterial Stacked Coextrusion. Proceedings of the SPIE OPTO, San Francisco, CA, USA.","DOI":"10.1117\/12.2039967"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"304","DOI":"10.1364\/OME.2.000304","article-title":"Analysis of glass flow during extrusion of optical fiber preforms","volume":"2","author":"Monro","year":"2012","journal-title":"Opt. Mater. Express"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"2016","DOI":"10.1016\/j.jmatprotec.2010.07.018","article-title":"Extruded tellurite glass optical fiber preforms","volume":"210","author":"Belwalkar","year":"2010","journal-title":"J. Mater. Process. Technol."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"32037","DOI":"10.1364\/OE.26.032037","article-title":"A six-strut suspended core fiber for cylindrical vector mode generation and propagation","volume":"26","author":"Ji","year":"2018","journal-title":"Opt. Express"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"15086","DOI":"10.1364\/OE.15.015086","article-title":"Extrusion of complex preforms for microstructured optical fibers","volume":"15","author":"Monro","year":"2007","journal-title":"Opt. Express"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"2416","DOI":"10.1109\/JLT.2018.2813384","article-title":"Infrared Suspended-Core Fiber Fabrication Based on Stacked Chalcogenide Glass Extrusion","volume":"36","author":"Xue","year":"2018","journal-title":"J. Lightwave Technol."},{"key":"ref_48","first-page":"45","article-title":"3D Printed Hollow Core Fiber with Negative Curvature for Terahertz Applications","volume":"14","author":"CruzI","year":"2015","journal-title":"J. Microw. Optoelectron. Electromagn. Appl."},{"key":"ref_49","doi-asserted-by":"crossref","unstructured":"Cruz, A.L.S., Argyros, A., Tang, X., Cordeiro, C.M.B., and Franco, M.A.R. (2015, January 23\u201328). 3D-printed terahertz Bragg fiber. Proceedings of the 2015 40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Millimeter, Hong Kong, China.","DOI":"10.1109\/IRMMW-THz.2015.7327936"},{"key":"ref_50","doi-asserted-by":"crossref","unstructured":"Canning, J., Cook, K., Luo, Y., Leon-Saval, S., Peng, G.-D., Comatti, E., Hossain, M.A., and Reid, Z. (2015, January 19\u201323). 3D printing of optical fibre preforms. Proceedings of the Asia Communications and Photonics Conference (ACP), Hong Kong, China.","DOI":"10.1364\/ACPC.2015.ASu4B.2"},{"key":"ref_51","unstructured":"Cook, K., Canning, J., Leon-Saval, S., Reid, Z., Hossain, M.A., Comatti, J.E., Luo, Y., and Peng, G.-D. (December, January 30). Optical fibre fabricated from a 3D-printed preform. Proceedings of the Australia NZ Conference Optics & Photonics (ANZCOP), Adelaide, Australia."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"4126","DOI":"10.1364\/OE.25.004126","article-title":"3D printed hollow core terahertz Bragg waveguides with defect layers for surface sensing applications","volume":"25","author":"Li","year":"2017","journal-title":"Opt. Express"},{"key":"ref_53","unstructured":"Cook, K., and Canning, J. (2018, January 28\u201331). 3D printed photonics. Proceedings of the Asia Pacific Optical Sensors (APOS2018), Matsue, Shimane, Japan."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"3966","DOI":"10.1364\/OL.40.003966","article-title":"Air-structured optical fiber drawn from a 3D-printed preform","volume":"40","author":"Cook","year":"2015","journal-title":"Opt. Lett."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"4554","DOI":"10.1364\/OL.41.004554","article-title":"Step-index optical fiber drawn from 3D printed preforms","volume":"41","author":"Cook","year":"2016","journal-title":"Opt. Lett."},{"key":"ref_56","doi-asserted-by":"crossref","unstructured":"Thiago, H.R., Marques, B.M.L., Os\u00f3rio, J.H., da Silva, L.E., and Cordeiro, C.M.B. (2017, January 27\u201330). 3D Printed Microstructured Optical Fibers. Proceedings of the International Microwave and Optoelectronics Conference, Aguas de Lindoia, Brazil.","DOI":"10.1109\/IMOC.2017.8121093"},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"8113","DOI":"10.1038\/s41598-018-26561-8","article-title":"Mid-IR Hollow-core microstructured fiber drawn from a 3D printed PETG preform","volume":"8","author":"Talataisong","year":"2018","journal-title":"Sci. Rep."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"1155","DOI":"10.1002\/pi.5602","article-title":"Polymers beyond standard optical fibres\u2014Fabrication of microstructured polymer optical fibres","volume":"67","author":"Arrospide","year":"2018","journal-title":"Polym. Int."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"32007","DOI":"10.1364\/OE.26.032007","article-title":"Novel method for manufacturing optical fiber: Extrusion and drawing of microstructured polymer optical fibers from a 3D printer","volume":"26","author":"Talataisong","year":"2018","journal-title":"Opt. Express"},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"4644","DOI":"10.1364\/OE.14.004644","article-title":"Stable imprinting of long-period gratings in microstructured polymer optical fibre","volume":"14","author":"Hiscocks","year":"2006","journal-title":"Opt. Express"},{"key":"ref_61","unstructured":"Steffen, M., Schukar, M., Witt, J., Krebber, K., Large, M., and Argyros, A. (2009, January 9\u201311). Investigation of MPOF-LPGs for sensing applications. Proceedings of the POF 2009\u201418th International Conference on Plastic Optical Fibers (Proceedings), Sydney, Australia."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"1213","DOI":"10.1109\/JSEN.2010.2041056","article-title":"Microstructured Polymer Optical Fibers Compared to Conventional POF: Novel Properties and Applications","volume":"10","author":"Large","year":"2010","journal-title":"IEEE Sens. J."},{"key":"ref_63","doi-asserted-by":"crossref","unstructured":"Argyros, A., Leon-Saval, S.G., Lwin, R., Provo, R., Murdoch, S.G., Harvey, J.D., Anthony, J., Leonhardt, R., Tuniz, A., and Kuhlmey, B.T. (2012, January 21\u201326). Polymer Optical Fibres: Conventional and Microstructured Fibres. Proceedings of the Fiber Lasers IX: Technology, Systems, and Applications, San Francisco, CA, USA.","DOI":"10.1117\/12.916068"},{"key":"ref_64","doi-asserted-by":"crossref","unstructured":"Min, R., Marques, C., Bang, O., and Ortega, B. (2018, January 22\u201326). LPG Inscription in mPOF for Optical Sensing. Proceedings of the SPIE Photonics Europe, Strasbourg, France.","DOI":"10.1117\/12.2306451"},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1016\/j.optcom.2004.03.004","article-title":"Mechanically induced long-period gratings in microstructured polymer fibre","volume":"236","author":"Padden","year":"2004","journal-title":"Opt. Commun."},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"1169","DOI":"10.1109\/JSEN.2010.2042952","article-title":"Water Diffusion Into UV Inscripted Long Period Grating in Microstructured Polymer Fiber","volume":"10","author":"Cruz","year":"2010","journal-title":"IEEE Sens. J."},{"key":"ref_67","unstructured":"Witt, J., Breithaupt, M., Erdmann, J., and Krebber, K. (2011, January 14\u201316). In Humidity sensing based on microstructured POF long period gratings. Proceedings of the POF 2011\u201420th International Conference on Plastic Optical Fibers (Proceedings), Bilbao, Spain."},{"key":"ref_68","unstructured":"Werneck, M.M., Allil, A.C., Rodrigues, D.M.C., Miguel, M.A., Vieira, F., Wandermur, G.L., Da, J.L., Neto, J.L.S., Pais, J.S., and Rambauske, D.C. (2011, January 14\u201316). LPG and taper based fiber-optic sensor for index of refraction measurements in biosensor applications. Proceedings of the Conference on Plastic Optical Fibres, Bilbao, Spain."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"034014","DOI":"10.1088\/0957-0233\/20\/3\/034014","article-title":"The role of viscoelastic properties in strain testing using microstructured polymer optical fibres (mPOF)","volume":"20","author":"Large","year":"2009","journal-title":"Meas. Sci. Technol."},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"2668","DOI":"10.1109\/JSEN.2012.2199105","article-title":"Assessment of an LPG mPOF for Strain Sensing","volume":"12","author":"Durana","year":"2012","journal-title":"IEEE Sens. J."},{"key":"ref_71","doi-asserted-by":"crossref","unstructured":"Witt, J., Schukar, M., Krebber, K., Demuth, J., and Sasek, L. (2011, January 14\u201316). Heart rate sensor for integration into personal protective equipment. Proceedings of the Conference on Plastic Optical Fibres, Bilbao, Spain.","DOI":"10.1109\/IWBP.2011.5954836"},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"3296","DOI":"10.1364\/OL.30.003296","article-title":"Continuous wave ultraviolet light-induced fiber Bragg gratings in few-and single-mode microstructured polymer optical fibers","volume":"30","author":"Kalli","year":"2005","journal-title":"Opt. Lett."},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"8844","DOI":"10.1364\/OE.15.008844","article-title":"Thermal response of Bragg gratings in PMMA microstructured optical fibers","volume":"15","author":"Carroll","year":"2007","journal-title":"Opt. Express"},{"key":"ref_74","doi-asserted-by":"crossref","first-page":"1217","DOI":"10.1049\/el.2010.1595","article-title":"827 nm Bragg grating sensor in multimode microstructured polymer optical fibre","volume":"46","author":"Johnson","year":"2010","journal-title":"Electron. Lett."},{"key":"ref_75","unstructured":"Barrera, D., Johnson, I.P., Webb, D.J., Van Hoe, B., Van Steenberge, G., and Sales, S. (2011, January 14\u201316). Dynamic strain sensor using a vcsel and a polymer fiber bragg grating in a multimode fiber. Proceedings of the 20th International Conference on Plastic Optical Fibers 2011, Bilbao, Spain."},{"key":"ref_76","doi-asserted-by":"crossref","unstructured":"Johnson, I.P., Webb, D.J., and Kalli, K. (2011, January 15\u201319). Utilisation of Thermal Annealing to Record Multiplexed FBG Sensors in Multimode Microstructured Polymer Optical Fibre. Proceedings of the 21st International Conference on Optical Fiber Sensors, Ottawa, ON, Canada.","DOI":"10.1117\/12.885926"},{"key":"ref_77","doi-asserted-by":"crossref","unstructured":"Johnson, I.P., Webb, D.J., Kalli, K., Yuan, W., Stefani, A., Nielsen, K., Rasmussen, H.K., and Bang, O. (2011, January 18\u201321). Polymer PCF Bragg Grating Sensors Based on Poly(Methyl Methacrylate) and TOPAS Cyclic Olefin Copolymer. Proceedings of the Optical Sensors 2011; and Photonic Crystal Fibers V, Prague, Czech Republic.","DOI":"10.1117\/12.890090"},{"key":"ref_78","doi-asserted-by":"crossref","first-page":"2013","DOI":"10.1364\/OE.26.002013","article-title":"Fast and stable gratings inscription in POFs made of different materials with pulsed 248 nm KrF laser","volume":"26","author":"Marques","year":"2018","journal-title":"Opt. Express"},{"key":"ref_79","doi-asserted-by":"crossref","unstructured":"Pan, X., Dong, Y., Wen, J., Huang, Y., Deng, C., and Wang, T. (2018, January 24\u201328). Highly sensitive Temperature Sensor of Fiber Bragg Grating on PbS-doped Silica Optical Fiber. Proceedings of the 26th International Conference on Optical Fiber Sensors, Lausanne, Switzerland.","DOI":"10.1364\/OFS.2018.ThE1"},{"key":"ref_80","doi-asserted-by":"crossref","unstructured":"Zheng, Y., Bremer, K., and Roth, B. (2018). Investigating the Strain, Temperature and Humidity Sensitivity of a Multimode Graded-Index Perfluorinated Polymer Optical Fiber with Bragg Grating. Sensors, 18.","DOI":"10.3390\/s18051436"},{"key":"ref_81","doi-asserted-by":"crossref","first-page":"3026","DOI":"10.1364\/OL.39.003026","article-title":"Humidity responsivity of poly(methyl methacrylate)-based optical fiber Bragg grating sensors","volume":"39","author":"Zhang","year":"2014","journal-title":"Opt. Lett."},{"key":"ref_82","doi-asserted-by":"crossref","first-page":"660","DOI":"10.1109\/LPT.2011.2125786","article-title":"Narrow Bandwidth 850-nm Fiber Bragg Gratings in Few-Mode Polymer Optical Fibers","volume":"23","author":"Stefani","year":"2011","journal-title":"IEEE Photonics Technol. Lett."},{"key":"ref_83","doi-asserted-by":"crossref","first-page":"643","DOI":"10.1049\/el.2010.0879","article-title":"Optical fibre temperature and humidity sensor","volume":"46","author":"Zhang","year":"2010","journal-title":"Electron. Lett."},{"key":"ref_84","unstructured":"Othonos, A., and Kalli, K. (1999). Fiber Bragg Gratings, Artech House."},{"key":"ref_85","doi-asserted-by":"crossref","first-page":"4723","DOI":"10.1109\/JLT.2018.2864113","article-title":"Thermal Profile Detection Through High-Sensitivity Fiber Optic Chirped Bragg Grating on Microstructured PMMA Fiber","volume":"36","author":"Korganbayev","year":"2018","journal-title":"J. Lightwave Technol."},{"key":"ref_86","doi-asserted-by":"crossref","first-page":"2605","DOI":"10.1109\/JLT.2018.2885957","article-title":"Toward Commercial Polymer Fiber Bragg Grating Sensors: Review and Applications","volume":"37","author":"Broadway","year":"2019","journal-title":"J. Lightwave Technol."},{"key":"ref_87","doi-asserted-by":"crossref","first-page":"4135","DOI":"10.1364\/OE.14.004135","article-title":"Liquid-filled hollow core microstructured polymer optical fiber","volume":"14","author":"Cox","year":"2006","journal-title":"Opt. Express"},{"key":"ref_88","doi-asserted-by":"crossref","first-page":"1473","DOI":"10.1364\/OL.33.001473","article-title":"Enhanced fluorescence sensing using microstructured optical fibers: A comparison of forward and backward collection modes","volume":"33","author":"Afshar","year":"2008","journal-title":"Opt. Lett."},{"key":"ref_89","doi-asserted-by":"crossref","unstructured":"Schartner, E.P., White, R.T., Warren-Smith, S.C., and Monro, T.M. (2009, January 5\u20139). Practical Sensitive Fluorescence Sensing with Microstructured Fibres. Proceedings of the 20th International Conference on Optical Fibre Sensors, Edinburgh, UK.","DOI":"10.1117\/12.835350"},{"key":"ref_90","doi-asserted-by":"crossref","first-page":"2961","DOI":"10.3390\/s110302961","article-title":"Driving down the detection limit in microstructured fiber-based chemical dip sensors","volume":"11","author":"Schartner","year":"2011","journal-title":"Sensors"},{"key":"ref_91","doi-asserted-by":"crossref","first-page":"18541","DOI":"10.1364\/OE.24.018541","article-title":"Quantification of the fluorescence sensing performance of microstructured optical fibers compared to multi-mode fiber tips","volume":"24","author":"Schartner","year":"2016","journal-title":"Opt. Express"},{"key":"ref_92","doi-asserted-by":"crossref","unstructured":"Jensen, J.B., Emiliyanov, G., Bang, O., Hoiby, P.E., Pedersen, L.H., Hansen, T.P., Nielsen, K., and Bjarklev, A. (2006, January 23\u201327). Microstructured Polymer Optical Fiber biosensors for detection of DNA and antibodies. Proceedings of the Optical Fiber Sensors, Cancun, Mexico.","DOI":"10.1364\/OFS.2006.ThA2"},{"key":"ref_93","doi-asserted-by":"crossref","first-page":"460","DOI":"10.1364\/OL.32.000460","article-title":"Localized biosensing with Topas microstructured polymer optical fiber","volume":"32","author":"Emiliyanov","year":"2007","journal-title":"Opt. Lett."},{"key":"ref_94","doi-asserted-by":"crossref","first-page":"5680","DOI":"10.1021\/la2002496","article-title":"Fluorescence-Based Aluminum Ion Sensing Using a Surface-Functionalized Microstructured Optical Fiber","volume":"27","author":"Heng","year":"2011","journal-title":"Langmuir"},{"key":"ref_95","doi-asserted-by":"crossref","first-page":"790","DOI":"10.1364\/BOE.8.000790","article-title":"Nanoparticle functionalised small-core suspended-core fibre\u2014A novel platform for efficient sensing","volume":"8","author":"Doherty","year":"2017","journal-title":"Biomed. Opt. Express"},{"key":"ref_96","doi-asserted-by":"crossref","first-page":"4395","DOI":"10.1364\/OL.42.004395","article-title":"Plasmonic nanoparticle-functionalized exposed-core fiber\u2014An optofluidic refractive index sensing platform","volume":"42","author":"Doherty","year":"2017","journal-title":"Opt. Lett."},{"key":"ref_97","doi-asserted-by":"crossref","first-page":"1455","DOI":"10.1049\/el:20081431","article-title":"Strain and temperature characterisation of sensing head based on suspended-core fibre in Sagnac interferometer","volume":"44","author":"Frazao","year":"2008","journal-title":"Electron. Lett."},{"key":"ref_98","doi-asserted-by":"crossref","first-page":"417540","DOI":"10.1155\/2009\/417540","article-title":"Temperature Sensor Based on Ge-Doped Microstructured Fibers","volume":"2009","author":"Cruz","year":"2009","journal-title":"J. Sens."},{"key":"ref_99","first-page":"3149","article-title":"Interrogation of a Suspended-Core Fabry\u2013Perot Temperature Sensor Through a Dual Wavelength Raman Fiber Laser","volume":"28","author":"Pinto","year":"2010","journal-title":"J. Lightwave Technol."},{"key":"ref_100","doi-asserted-by":"crossref","first-page":"8967","DOI":"10.1364\/OE.24.008967","article-title":"Interferometric high temperature sensor using suspended-core optical fibers","volume":"24","author":"Nguyen","year":"2016","journal-title":"Opt. Express"},{"key":"ref_101","doi-asserted-by":"crossref","first-page":"3714","DOI":"10.1364\/OE.24.003714","article-title":"Temperature sensing up to 1300 C using suspended-core microstructured optical fibers","volume":"24","author":"Nguyen","year":"2016","journal-title":"Opt. Express"},{"key":"ref_102","doi-asserted-by":"crossref","first-page":"36","DOI":"10.1016\/j.yofte.2016.11.006","article-title":"Interferometric temperature sensor based on a water-filled suspended-core fiber","volume":"33","author":"Villalba","year":"2017","journal-title":"Opt. Fiber Technol."},{"key":"ref_103","doi-asserted-by":"crossref","first-page":"202","DOI":"10.1364\/OL.37.000202","article-title":"High precision micro-displacement fiber sensor through a suspended-core Sagnac interferometer","volume":"37","author":"Bravo","year":"2012","journal-title":"Opt. Lett."},{"key":"ref_104","doi-asserted-by":"crossref","first-page":"10820","DOI":"10.1364\/OE.26.010820","article-title":"High-spatial-resolution ultrasonic sensor using a micro suspended-core fiber","volume":"26","author":"Shao","year":"2018","journal-title":"Opt. 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