Low-noise linear-polarization fiber laser with polarization adjusted parity-time symmetry in a linear reflection structureOA
A low-noise linear-polarization single longitudinal mode(SLM)fiber laser based on polarimetric parity-time(PT)symmetry is proposed and experimentally demonstrated.PT symmetry is achieved within a linear reflection structure.When the balanced gain-loss contrast surpasses the coupling coefficient,the condition for PT-symmetry breaking is met,enabling the realization of an SLM laser.Stable laser output with a high sidemode suppression ratio(SMSR)of 62.6 dB and a high optical signal-to-noise ratio(OSNR)of 64.32 dB is realized.The Lorentz linewidth is measured as 182.5 Hz.The degree of polarization(DOP)and polarization extinction ratio(PER)of the laser remain above 99.8%and 30.8 dB within 4 hours.Furthermore,the relative intensity noise(RIN)and phase noise of the PT-symmetric laser are analyzed and compared with those of fiber lasers and semiconductor lasers.The results demonstrate the low-noise performance of the proposed PT-symmetric laser.
LIN Zi-han;CAO Zhi-gang;CHEN Jia-ming;FANG Chong-xu;CHENG Rui;WANG Xing-yun;WANG Xu;LIU Peng;CAO Jian-bo;LIN Ji-ping
State Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology,School of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education,Anhui University,Hefei 230601,ChinaState Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology,School of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education,Anhui University,Hefei 230601,ChinaState Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology,School of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education,Anhui University,Hefei 230601,ChinaState Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology,School of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education,Anhui University,Hefei 230601,ChinaState Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology,School of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education,Anhui University,Hefei 230601,ChinaState Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology,School of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education,Anhui University,Hefei 230601,ChinaState Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology,School of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education,Anhui University,Hefei 230601,ChinaState Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology,School of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education,Anhui University,Hefei 230601,ChinaState Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology,School of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education,Anhui University,Hefei 230601,ChinaState Key Laboratory of Opto-Electronic Information Acquisition and Protection Technology,School of Optoelectronic Science and Engineering,Anhui University,Hefei 230601,China Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education,Anhui University,Hefei 230601,China
信息技术与安全科学
parity-time symmetrylinear reflection structuresingle longitudinal modefiber laser
《中国光学(中英文)》 2026 (4)
P.992-1005,14
国家重点研发计划资助项目(No.2024YFE03000200,No.2016YFC0301900,No.2016YFA0301901)国家自然科学基金(No.61605001)。
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