{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T01:25:21Z","timestamp":1777512321260,"version":"3.51.4"},"reference-count":27,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2023,2,8]],"date-time":"2023-02-08T00:00:00Z","timestamp":1675814400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Key Research and Development Program of China","award":["2022YFB3606300"],"award-info":[{"award-number":["2022YFB3606300"]}]},{"name":"National Key Research and Development Program of China","award":["U2230129"],"award-info":[{"award-number":["U2230129"]}]},{"name":"National Natural Science Foundation of China","award":["2022YFB3606300"],"award-info":[{"award-number":["2022YFB3606300"]}]},{"name":"National Natural Science Foundation of China","award":["U2230129"],"award-info":[{"award-number":["U2230129"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>An interferometric fiber-optic gyroscope (IFOG) demodulates a rotation signal via interferometric light intensity. However, the working environments of IFOGs typically involve great uncertainty. Fluctuations in temperature, air pressure, electromagnetic field, and the power system all cause the power of the superluminescent diode (SLD) light source to fluctuate as well. In this invited paper, we studied the effects of SLD power fluctuation on the dynamic and static performance characteristics of a gyro system through the use of a light-power feedback loop. Fluctuations of 0.5 mA, 1 mA, and 5 mA in the SLD source entering the IFOG caused zero-bias stability to be 69, 135, and 679 times worse. We established an effective method to monitor power fluctuations of SLD light sources and to compensate for their effects without increasing hardware complexity or system cost. In brief, we established a real-time power-sensing and -compensating system. Experimental results showed that for every 0.1 mA increase in the fluctuation amplitude of the driving current, the zero-bias stability became 4 to 7 times worse, which could be reduced about 95% through the use of SLD power compensation.<\/jats:p>","DOI":"10.3390\/s23041925","type":"journal-article","created":{"date-parts":[[2023,2,9]],"date-time":"2023-02-09T01:37:07Z","timestamp":1675906627000},"page":"1925","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Real-Time Compensation for SLD Light-Power Fluctuation in an Interferometric Fiber-Optic Gyroscope"],"prefix":"10.3390","volume":"23","author":[{"given":"Shijie","family":"Zheng","sequence":"first","affiliation":[{"name":"Institute of Laser & Micro\/Nano Engineering, College of Electronics & Information Engineering, Sichuan University, Chengdu 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mengyu","family":"Ren","sequence":"additional","affiliation":[{"name":"Institute of Laser & Micro\/Nano Engineering, College of Electronics & Information Engineering, Sichuan University, Chengdu 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xin","family":"Luo","sequence":"additional","affiliation":[{"name":"Institute of Laser & Micro\/Nano Engineering, College of Electronics & Information Engineering, Sichuan University, Chengdu 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hangyu","family":"Zhang","sequence":"additional","affiliation":[{"name":"Institute of Laser & Micro\/Nano Engineering, College of Electronics & Information Engineering, Sichuan University, Chengdu 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guoying","family":"Feng","sequence":"additional","affiliation":[{"name":"Institute of Laser & Micro\/Nano Engineering, College of Electronics & Information Engineering, Sichuan University, Chengdu 610065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1636001","DOI":"10.1155\/2021\/1636001","article-title":"A LSTM-RNN-based fiber optic gyroscope drift compensation","volume":"2021","author":"Mao","year":"2021","journal-title":"Math. Probl. Eng."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"18240","DOI":"10.1109\/JSEN.2022.3195502","article-title":"Recent advancements in resonant fiber optic gyro\u2014A Review","volume":"22","author":"Wang","year":"2022","journal-title":"IEEE Sens. J."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"126729","DOI":"10.1016\/j.optcom.2020.126729","article-title":"Tactical-grade interferometric fiber optic gyroscope based on an integrated optical chip","volume":"485","author":"Shang","year":"2021","journal-title":"Opt. Commun."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"110783","DOI":"10.1016\/j.measurement.2022.110783","article-title":"Study on nonlinear error calibration of fiber optical gyroscope scale factor based on LSTM","volume":"190","author":"Zhao","year":"2022","journal-title":"Measurement"},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Li, X., Liu, P., Guang, X., Xu, Z., Guan, L., and Li, G. (2017). Temperature dependence of faraday effect-induced bias error in a fiber optic gyroscope. Sensors, 17.","DOI":"10.3390\/s17092046"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"012047","DOI":"10.1088\/1742-6596\/1300\/1\/012047","article-title":"Research on the mean-wavelength drift mechanism of SLD light source in FOG","volume":"1300","author":"Chen","year":"2019","journal-title":"J. Phys. Conf. Ser."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"10535","DOI":"10.1364\/OE.26.010535","article-title":"Six-state phase modulation for reduced crosstalk in a fiber optic gyroscope","volume":"26","author":"Zhang","year":"2018","journal-title":"Opt. Express"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Skalsk\u00fd, M., Havr\u00e1nek, Z., and Fialka, J. (2019). Efficient Modulation and Processing Method for Closed-Loop Fiber Optic Gyroscope with Piezoelectric Modulator. Sensors, 19.","DOI":"10.3390\/s19071710"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Hui, F., Tianjin, M.L., Ma, L., Zuo, W., Zhang, S., and Zhang, X.M. (2017, January 29\u201331). Investigation on near Gaussian-shaped spectrum erbium-doped fiber source which applied to the fiber optic gyroscope. Proceedings of the 2017 24th Saint Petersburg International Conference on Integrated Navigation Systems (ICINS), Saint Petersburg, Russia.","DOI":"10.23919\/ICINS.2017.7995669"},{"key":"ref_10","first-page":"158","article-title":"Double-Pass Backward ASE light source which applied to the three-axis FOG","volume":"24","author":"Fei","year":"2016","journal-title":"J. Chin. Inert. Technol."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"012027","DOI":"10.1088\/1742-6596\/916\/1\/012027","article-title":"An improved temperature compensation circuit for SLD light source of fiber-optic gyroscope","volume":"916","author":"Chen","year":"2017","journal-title":"J. Phys. Conf. Ser."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"012127","DOI":"10.1088\/1742-6596\/276\/1\/012127","article-title":"The novel stable control scheme of the light source power in the closed-loop fiber optic gyroscope","volume":"276","author":"Ji","year":"2011","journal-title":"J. Phys. Conf. Ser."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"20824","DOI":"10.1364\/OE.27.020824","article-title":"Gain-tailored Yb\/Ce codoped aluminosilicate fiber for laser stability improvement at high output power","volume":"27","author":"Zhang","year":"2019","journal-title":"Opt. Express"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"166298","DOI":"10.1016\/j.ijleo.2021.166298","article-title":"Research on the feedback control characteristics and parameter optimization of closed-loop fiber optic gyroscope","volume":"229","author":"Yan","year":"2021","journal-title":"Optik"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"22777","DOI":"10.1364\/OE.24.022777","article-title":"High temperature stability, low coherence and low relative intensity noise semiconductor sources for interferometric sensors","volume":"24","author":"Komljenovic","year":"2016","journal-title":"Opt. Express"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"102926","DOI":"10.1016\/j.yofte.2022.102926","article-title":"Error analysis of dual-polarization fiber optic gyroscope under the magnetic field-variable temperature field","volume":"71","author":"Xue","year":"2022","journal-title":"Opt. Fiber Technol."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"168765","DOI":"10.1016\/j.ijleo.2022.168765","article-title":"A method for temperature error compensation in fiber-optic gyroscope based on machine learning","volume":"256","author":"Cao","year":"2022","journal-title":"Optik"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"102927","DOI":"10.1016\/j.yofte.2022.102927","article-title":"Magnetic error suppression in Polarization-Maintaining fiber optic gyro system with orthogonal polarization states","volume":"71","author":"Li","year":"2022","journal-title":"Opt. Fiber Technol."},{"key":"ref_19","unstructured":"Bischel, W.K., Kouchnir, M.A., Bitter, M., Yahalom, R., and Taylor, E.W. (2011). Nanophotonics and Macrophotonics for Space Environments V, SPIE."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Zhang, C., Song, N., Li, L., Jin, J., Yang, D., and Xu, H. (2012, January 14). Fiber optic gyro R&D at Beihang University. Proceedings of the OFS2012 22nd International Conference on Optical Fiber Sensors, Beijing, China.","DOI":"10.1117\/12.979249"},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Pan, X., Liu, P., Zhang, S., Jin, J., and Song, N. (2017). Novel Compensation Scheme for the Modulation Gain to Suppress the Quantization-Induced Bias in a Fiber Optic Gyroscope. Sensors, 17.","DOI":"10.3390\/s17040823"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"15718","DOI":"10.1364\/OE.392510","article-title":"Interferometric optical gyroscope based on an integrated silica waveguide coil with low loss","volume":"28","author":"Liu","year":"2020","journal-title":"Opt. Express"},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Wang, L., Halstead, D.R., Monte, T.D., Khan, J.A., Brunner, J., and Heyningen, M.A.K.v. (2019, January 1\u20135). Low-cost, High-end Tactical-grade Fiber Optic Gyroscope Based on Photonic Integrated Circuit. Proceedings of the 2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL), Naples, FL, USA.","DOI":"10.1109\/ISISS.2019.8739700"},{"key":"ref_24","first-page":"7","article-title":"Application of the Sagnac effect in the interferometric fiber-optic gyroscope","volume":"45","author":"Lefevre","year":"1999","journal-title":"Opt. Gyros Appl."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1099","DOI":"10.1364\/AO.15.001099","article-title":"Fiber ring interferometer","volume":"15","author":"Vali","year":"1976","journal-title":"Appl. Opt."},{"key":"ref_26","unstructured":"Zhang, G.-C. (2008). The Principles and Technologies of Fiber-Optic Gyroscope, National Defense Industry Press."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Li, X., Zhang, Y., and Zhang, C. (2009, January 24\u201326). Five Points Modulation in Closed Loop Fiber Optic Gyroscope. Proceedings of the 2009 5th International Conference on Wireless Communications, Networking and Mobile Computing, Beijing, China.","DOI":"10.1109\/WICOM.2009.5305018"}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/23\/4\/1925\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T18:28:49Z","timestamp":1760120929000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/23\/4\/1925"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,2,8]]},"references-count":27,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2023,2]]}},"alternative-id":["s23041925"],"URL":"https:\/\/doi.org\/10.3390\/s23041925","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,2,8]]}}}