{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T01:27:27Z","timestamp":1760232447105,"version":"build-2065373602"},"reference-count":28,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2022,11,9]],"date-time":"2022-11-09T00:00:00Z","timestamp":1667952000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science","award":["6103159","BK20190617","BK20200592"],"award-info":[{"award-number":["6103159","BK20190617","BK20200592"]}]},{"name":"Natural Science Foundation of Jiangsu Province","award":["6103159","BK20190617","BK20200592"],"award-info":[{"award-number":["6103159","BK20190617","BK20200592"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>An integrated TM-pass\/TE-stop polarizer centered at 850 nm is designed in this paper. The proposed polarizer is designed on a Si3N4 on insulator platform with tilted subwavelength gratings (SWG). Since the tilted SWGs have much more of an impact on the effective index of the TE polarization state than that of the TM polarization state, they help to achieve high TM and low TE transmission simultaneously. After geometries optimization, the polarizer\u2019s working bandwidth, which is defined as the wavelength region with an extinction ratio higher than 20 dB, is determined to be 185 nm under a SWG tilting angle of 30 degrees. At the same time, the insertion loss is always less than 0.45 dB over the entire working wavelength band. Finally, the results of fabrication tolerance analysis show that the SWG ridge width jitter only degrades the polarizer\u2019s working bandwidth by 16 nm.<\/jats:p>","DOI":"10.3390\/sym14112359","type":"journal-article","created":{"date-parts":[[2022,11,10]],"date-time":"2022-11-10T02:03:58Z","timestamp":1668045838000},"page":"2359","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["On-Chip Design of a Broadband 850 nm TM-Pass\/TE-Stop Polarizer with Tilted Subwavelength Gratings"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0233-6857","authenticated-orcid":false,"given":"Yue","family":"Dong","sequence":"first","affiliation":[{"name":"Department of Electric Engineering, School of Internet of Things Engineering, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yu","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Electric Engineering, School of Internet of Things Engineering, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4891-0535","authenticated-orcid":false,"given":"Yin","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Electric Engineering, School of Internet of Things Engineering, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bo","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Electric Engineering, School of Internet of Things Engineering, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"e1","DOI":"10.1038\/lsa.2012.1","article-title":"Passive technologies for future large-scale photonic integrated circuits on silicon: Polarization handling, light non-reciprocity and loss reduction","volume":"1","author":"Dai","year":"2012","journal-title":"Light Sci. Appl."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"3049","DOI":"10.1364\/JOSAB.472349","article-title":"Compact and Broadband on-chip silicon polarization beam splitter based on tilted subwavelength grating","volume":"39","author":"Sun","year":"2022","journal-title":"J. Opt. Soc. Am. B"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1294","DOI":"10.1109\/LPT.2016.2541672","article-title":"Asymmetric Silicon Slot-Waveguide-Assisted Polarizing Beam Splitter","volume":"28","author":"Feng","year":"2016","journal-title":"IEEE Photonics Technol. Lett."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"16385","DOI":"10.1364\/OE.389070","article-title":"Experimental demonstration of metamaterial anisotropy engineering for broadband on-chip polarization bean splitting","volume":"28","author":"Velasco","year":"2020","journal-title":"Opt. Express"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1364\/JOSAB.447359","article-title":"Ultracompact silicon-based polarization splitter and rotator based on asymmetric directional couplers with subwavelength gratings","volume":"30","author":"Chen","year":"2022","journal-title":"J. Opt. Soc. Am. B"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"27949","DOI":"10.1038\/srep27949","article-title":"Ultracompact and high efficient silicon-based polarization splitter-rotator using a partially-etched subwavelength grating coupler","volume":"6","author":"Xu","year":"2016","journal-title":"Sci. Rep."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Luo, Y., Ge, R., Luo, H., Wu, M., Zhou, L., Aryal, M., Li, W., Yuan, J., Xu, J., and Lan, Q. (2021). Polarization Splitter-Rotator Based on Multimode Waveguide Gratings. Crystals, 11.","DOI":"10.3390\/cryst11101170"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"27404","DOI":"10.1364\/OE.18.027404","article-title":"Compact broadband polarizer based on shallowly-etched silicon-on-insulator ridge optical waveguides","volume":"18","author":"Dai","year":"2010","journal-title":"Opt. Express"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2126","DOI":"10.1364\/JOSAB.36.002126","article-title":"Subwavelength grating based compact and broadband TE-pass polarizer for slot waveguides on a SOI platform","volume":"36","author":"Ni","year":"2019","journal-title":"J. Opt. Soc. Am. B"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"2700109","DOI":"10.1109\/JPHOT.2020.3041286","article-title":"Broadband and compact TE-pass polarizer based on hybrid plasmonic grating on LNOI platform","volume":"13","author":"Dai","year":"2021","journal-title":"IEEE Photonics J."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"20685","DOI":"10.1039\/C9NR06948H","article-title":"Nanoscale plasmonic TM-pass polarizer integrated on silicon photonics","volume":"11","author":"Wang","year":"2019","journal-title":"Nanoscale"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"4514","DOI":"10.1364\/OL.39.004514","article-title":"Low-loss ultracompact transverse-magnetic-pass polarizer with a silicon subwavelength grating waveguide","volume":"39","author":"Guan","year":"2014","journal-title":"Opt. Lett."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Dong, Y., Liu, Y., Xu, Y., and Zhang, B. (2022). An Ultra-Broadband Design of TM-pass\/TE-Stop Polarizer Based on Multistage Bragg Gratings. Photonics, 9.","DOI":"10.3390\/photonics9060409"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"315","DOI":"10.1364\/OPTICA.6.000473","article-title":"Monolithic integration of broadband optical isolators for polarization-diverse silicon photonics","volume":"6","author":"Zhang","year":"2019","journal-title":"Optica"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1504","DOI":"10.1364\/JOSAB.35.001504","article-title":"Versatile broadband polarization-independent optical circulators for nanophotonic integrated circuits","volume":"35","author":"Firby","year":"2018","journal-title":"J. Opt. Soc. Am. B"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"565","DOI":"10.1038\/s41586-018-0421-7","article-title":"Subwavelength integrated photonics","volume":"560","author":"Cheben","year":"2018","journal-title":"Nature"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"7802107","DOI":"10.1109\/JPHOT.2015.2483204","article-title":"High extinction ratio and broadband silicon TE-pass polarizer using subwavelength grating index engineering","volume":"7","author":"Xiong","year":"2015","journal-title":"IEEE Photonics J."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"27687","DOI":"10.1364\/OE.25.027678","article-title":"Silicon nitride waveguide platform for fluorescence microscopy of living cells","volume":"25","author":"Tinguely","year":"2017","journal-title":"Opt. Express"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"9154","DOI":"10.1364\/AO.471114","article-title":"Compact and broadband design of an 850 nm 2x2 3-dB directional coupler with a shallowly etched SWG gap","volume":"61","author":"Dong","year":"2022","journal-title":"App. Opt."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"4373","DOI":"10.1109\/JLT.2021.3066203","article-title":"Review of silicon photonics technology and platform development","volume":"39","author":"Siew","year":"2021","journal-title":"J. Lightwave Technol."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"4900110","DOI":"10.1109\/JPHOT.2020.2968570","article-title":"Interleaved Subwavelength Gratings Strip Waveguide Based TM-pass Polarizer on SOI Platform","volume":"12","author":"Xu","year":"2020","journal-title":"IEEE Photonics J."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"2520","DOI":"10.1109\/LPT.2006.887374","article-title":"A Silicon-on-Insulator Photonic Wire Based Evanescent Field Sensor","volume":"18","author":"Densmore","year":"2006","journal-title":"IEEE Photonics Technol."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1002\/lpor.201400083","article-title":"Waveguide sub-wavelength structures: A review of principles and applications","volume":"9","author":"Halir","year":"2015","journal-title":"Laser Photonics Rev."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"3398","DOI":"10.1364\/OL.394696","article-title":"Polarization splitting directional coupler using tilted subwavelength gratings","volume":"45","author":"Velasco","year":"2020","journal-title":"Opt. Lett."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"7705","DOI":"10.1364\/AO.397476","article-title":"Broadband and high extinction ratio polarization beam splitter on tilted subwavelength gratings","volume":"59","author":"Yang","year":"2019","journal-title":"Appl. Opt."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"6600312","DOI":"10.1109\/JPHOT.2021.3058800","article-title":"On-Chip Beam Splitting Strategies Based on SWG Assisted Directional Coupler","volume":"13","author":"Dong","year":"2021","journal-title":"IEEE Photonics J."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"7101408","DOI":"10.1109\/JPHOT.2016.2574335","article-title":"Compact Broadband Directional Coupler Using Subwavelength Gratings","volume":"8","author":"Wang","year":"2016","journal-title":"IEEE Photonics J."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"580","DOI":"10.1364\/AO.446518","article-title":"Broadband and high extinction ratio TE-pass\/TM-stop polarizer at 850 nm using chirped subwavelength gratings","volume":"61","author":"Liu","year":"2022","journal-title":"Appl. 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