{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T16:17:37Z","timestamp":1781108257233,"version":"3.54.1"},"reference-count":29,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2024,2,8]],"date-time":"2024-02-08T00:00:00Z","timestamp":1707350400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Science Foundation of Hubei Province","award":["2022CFA007"],"award-info":[{"award-number":["2022CFA007"]}]},{"name":"Natural Science Foundation of Hubei Province","award":["2023BEB016"],"award-info":[{"award-number":["2023BEB016"]}]},{"name":"Science and Technology Project of Hubei Province","award":["2022CFA007"],"award-info":[{"award-number":["2022CFA007"]}]},{"name":"Science and Technology Project of Hubei Province","award":["2023BEB016"],"award-info":[{"award-number":["2023BEB016"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In the field of inter-satellite laser communication, achieving high-quality communication and compensating for the Doppler frequency shift caused by relative motion necessitate lasers with narrow linewidths, low phase noise, and the ability to achieve mode-hop-free tuning within a specific range. To this end, this paper investigates a novel external cavity diode laser (ECDL) with a frequency-selective F-P etalon structure, leveraging the external cavity F-P etalon structure in conjunction with an auxiliary filter to achieve single longitudinal mode selection. The laser undergoes linewidth testing using a delayed self-heterodyne beating method, followed by the testing of its phase noise and frequency noise characteristics using a noise analyzer, yielding beat spectra and noise power spectral density profiles. Furthermore, the paper introduces an innovative bidirectional temperature-scanning laser method to achieve optimal laser-operating point selection and mode-hop-free tuning. The experimental results showcase that the single longitudinal mode spectral side-mode suppression ratio (SMSR) is around 70 dB, and the output power exceeds 10 mW. Enhancing the precision of the F-P etalon leads to a more pronounced suppression of low-frequency phase noise, reducing the Lorentzian linewidth from the initial 10 kHz level to a remarkable 5 kHz level. The bidirectional temperature-scanning laser method not only allows for the selection of the optimal operating point but also enables mode-hop-free tuning within 160 pm.<\/jats:p>","DOI":"10.3390\/s24041103","type":"journal-article","created":{"date-parts":[[2024,2,8]],"date-time":"2024-02-08T03:36:17Z","timestamp":1707363377000},"page":"1103","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Study on Linewidth and Phase Noise Characteristics of a Narrow Linewidth External Cavity Diode Laser"],"prefix":"10.3390","volume":"24","author":[{"given":"Sheng","family":"Hu","sequence":"first","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), School of Science, Hubei University of Technology, Wuhan 430068, China"},{"name":"School of Electrical and Electronics Engineering, Hubei University of Technology, Wuhan 430068, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Puchu","family":"Lv","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), School of Science, Hubei University of Technology, Wuhan 430068, China"},{"name":"School of Electrical and Electronics Engineering, Hubei University of Technology, Wuhan 430068, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenggang","family":"Guan","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), School of Science, Hubei University of Technology, Wuhan 430068, China"},{"name":"AOV Energy LLC, Wuhan 430068, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shasha","family":"Li","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), School of Science, Hubei University of Technology, Wuhan 430068, China"},{"name":"School of Electrical and Electronics Engineering, Hubei University of Technology, Wuhan 430068, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haixin","family":"Qin","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), School of Science, Hubei University of Technology, Wuhan 430068, China"},{"name":"School of Electrical and Electronics Engineering, Hubei University of Technology, Wuhan 430068, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoqiang","family":"Li","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), School of Science, Hubei University of Technology, Wuhan 430068, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuan","family":"Chen","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), School of Science, Hubei University of Technology, Wuhan 430068, China"},{"name":"School of Electrical and Electronics Engineering, Hubei University of Technology, Wuhan 430068, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Linfeng","family":"Zhan","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), School of Science, Hubei University of Technology, Wuhan 430068, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiqi","family":"Wang","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), School of Science, Hubei University of Technology, Wuhan 430068, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yifan","family":"Xiao","sequence":"additional","affiliation":[{"name":"Laboratory of Optoelectronics and Sensor (OES Lab), School of Science, Hubei University of Technology, Wuhan 430068, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Minghu","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Electrical and Electronics Engineering, Hubei University of Technology, Wuhan 430068, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,2,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Jia, Q., Li, C., Liu, L., Chen, T., and Cao, G. (2021, January 1\u20134). Acquisition, Scanning and Control Technology for Inter-satellite Laser Communication. Proceedings of the 2021 IEEE 16th Conference on Industrial Electronics and Applications (ICIEA), Chengdu, China.","DOI":"10.1109\/ICIEA51954.2021.9516351"},{"key":"ref_2","unstructured":"Peng, C., and Cen, F. (2021, January 28\u201330). Research on inter-satellite laser communication based on relay system. Proceedings of the International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2021), Xi\u2019an, China."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"103627","DOI":"10.1016\/j.infrared.2020.103627","article-title":"Research on simulation methods for Doppler frequency shift of a coherent inter-satellite laser link in a ground test system","volume":"113","author":"Zhang","year":"2021","journal-title":"Infrared Phys. Technol."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"2244","DOI":"10.1002\/mop.33046","article-title":"A comprehensive review on the development and applications of narrow-linewidth lasers","volume":"64","author":"Bai","year":"2021","journal-title":"Microw. Opt. Technol. Lett."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Ding, K., Ma, Y., Wei, L., Li, X., Shi, J., Li, Z., Qu, Y., Li, L., Qiao, Z., and Liu, G. (2022). Research on Narrow Linewidth External Cavity Semiconductor Lasers. Crystals, 12.","DOI":"10.3390\/cryst12070956"},{"key":"ref_6","unstructured":"Lang, X., Jia, P., Chen, Y., Qin, L., Liang, L., Chen, C., Wang, Y., Shan, X., and Ning, Y. (2019). Science China Information Sciences, Springer Science and Business Media LLC."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"34815","DOI":"10.1109\/ACCESS.2022.3162917","article-title":"A Survey on Laser Space Network: Terminals, Links, and Architectures","volume":"10","author":"Li","year":"2022","journal-title":"IEEE Access"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"5769","DOI":"10.1364\/OE.447408","article-title":"Researching pointing error effect on laser linewidth tolerance in space coherent optical communication systems","volume":"30","author":"Li","year":"2022","journal-title":"Opt. Express"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"5345","DOI":"10.1364\/AO.427122","article-title":"Design and experimental demonstration of 8-QAM coherent free-space optical communication using amplitude compensation and phase recovery","volume":"60","author":"Li","year":"2021","journal-title":"Appl. Opt."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1940","DOI":"10.1103\/PhysRev.112.1940","article-title":"Infrared and Optical Masers","volume":"112","author":"Schawlow","year":"1958","journal-title":"Phys. Rev."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"259","DOI":"10.1109\/JQE.1982.1071522","article-title":"Theory of the linewidth of semiconductor lasers","volume":"18","author":"Henry","year":"1982","journal-title":"IEEE J. Quantum Electron."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"489","DOI":"10.1063\/1.98182","article-title":"Linewidth-narrowed distributed feedback injection lasers with long cavity length and detuned Bragg wavelength","volume":"50","author":"Liou","year":"1987","journal-title":"Appl. Phys. Lett."},{"key":"ref_13","first-page":"869","article-title":"Research on linewidth narrowing technique of semiconductor laser with shining grating external cavity feedback","volume":"32","author":"Jiang","year":"2006","journal-title":"Opt. Tech."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"255","DOI":"10.1007\/s00340-012-5327-8","article-title":"Development of narrow linewidth, micro-integrated extended cavity diode lasers for quantum optics experiments in space","volume":"111","author":"Luvsandamdin","year":"2013","journal-title":"Appl. Phys. B"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"122701","DOI":"10.7567\/APEX.7.122701","article-title":"Experimental demonstration of linewidth reduction of laser diode by compact coherent optical negative feedback system","volume":"7","author":"Aoyama","year":"2014","journal-title":"Appl. Phys. Express"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1109\/JSTQE.2017.2693021","article-title":"Narrow Linewidth Tunable DFB Laser Array Integrated with Optical Feedback Planar Lightwave Circuit (PLC)","volume":"23","author":"Ishii","year":"2017","journal-title":"IEEE J. Sel. Top. Quantum Electron."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"270","DOI":"10.1049\/el:19890188","article-title":"External cavity diode laser comprising Brewster-angled rectangular core fibre","volume":"25","author":"Bachen","year":"1989","journal-title":"Electron. Lett."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1109\/68.47023","article-title":"External-cavity semiconductor laser with 1000 GHz continuous piezoelectric tuning range","volume":"2","author":"Schremer","year":"1990","journal-title":"IEEE Photonics Technol. Lett."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1547","DOI":"10.1063\/1.97775","article-title":"Polarization and frequency control of a semiconductor laser with a new external cavity structure","volume":"50","author":"Wakana","year":"1987","journal-title":"Appl. Phys. Lett."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"105510","DOI":"10.1016\/j.rinp.2022.105510","article-title":"Fabry\u2013P\u00e9rot based short pulsed laser linewidth measurement with enhanced spectral resolution","volume":"37","author":"Hun","year":"2022","journal-title":"Results Phys."},{"key":"ref_21","unstructured":"Ramsay, V.S.K., McLean, I.S., and Takami, H. (2014). Proceedings Volume 9147, Ground-Based and Airborne Instrumentation for Astronomy, Montreal, QC, Canada, 22\u201327 June 2014, SPIE."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"421","DOI":"10.1007\/s00340-011-4719-5","article-title":"Precise measurement of Brillouin scattering spectrum in the ocean using F\u2013P etalon and ICCD","volume":"105","author":"Liang","year":"2011","journal-title":"Appl. Phys. B"},{"key":"ref_23","first-page":"568","article-title":"Measurement of Narrow Linewidth Laser Linewidth Using Short Fiber Delay Self-Heterodyne Method","volume":"34","author":"Yudong","year":"2008","journal-title":"J. Beijing Univ. Aeronaut. Astronaut."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"2070","DOI":"10.1109\/JQE.1986.1072909","article-title":"Linewidth determination from self-heterodyne measurements with subcoherence delay times","volume":"22","author":"Richter","year":"1986","journal-title":"IEEE Quantum Electron."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"3048","DOI":"10.1109\/JLT.2008.925046","article-title":"Narrow Linewidth CW Laser Phase Noise Characterization Methods for Coherent Transmission System Applications","volume":"26","author":"Camatel","year":"2008","journal-title":"J. Light. Technol."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1300","DOI":"10.1109\/JLT.2013.2247564","article-title":"Phase Noise Characterization of SGDBR Lasers Using Phase Modulation Detection Method with Delayed Self-Heterodyne Measurements","volume":"31","author":"Huynh","year":"2013","journal-title":"J. Light. Technol."},{"key":"ref_27","unstructured":"(2020, October 29). ITU-T. Spectral Grids for WDM Applications: DWDM Frequency Grid: G.694.1[S\/OL]. Available online: https:\/\/handle.itu.int\/11.1002\/1000\/14498."},{"key":"ref_28","unstructured":"Sun, J., Xu, Q., Lu, W., and Hou, P. (2022). Space Coherent Laser Communication Technology, People\u2019s Posts and Telecommunications Press. [1st ed.]."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1002\/sat.4600090208","article-title":"Analysis and correction techniques of doppler shift for non-geosynchronous communication satellites","volume":"9","author":"Vilar","year":"1991","journal-title":"Int. J. Satell. Commun."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/24\/4\/1103\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T13:56:54Z","timestamp":1760104614000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/24\/4\/1103"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,2,8]]},"references-count":29,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2024,2]]}},"alternative-id":["s24041103"],"URL":"https:\/\/doi.org\/10.3390\/s24041103","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,2,8]]}}}