量子电子学报2012，Vol.29Issue(3)：311-315,5.DOI:10.3969/j.issn.1007-5461.2012.03.009
光电反馈抑制掺铒光纤激光器的低频强度噪声
Intensity noise of erbium doped fiber laser at low frequency suppression through optoelectronic feedback
摘要
Abstract
The low and medium frequency intensity noise of the erbium doped fiber laser (EDFL) is suppressed by using optoelectronic feedback. The factors affecting the intensity noise of the EDFL are analyzed by the rate equations. The importance of the phase of feedback signal in noise suppression are discussed by simulating and optimizing the feedback circuits. The experiment results show that the peak relaxation oscillation (about 30 kHz) is reduced to about 35 dB, at the low frequency band (below 20 kHz) falls to about 10 dB averagely and the relaxation oscillation peak moving to the higher frequency is suppressed. The excellent noise property indicates that the laser source has important applications in optical sensors.关键词
激光技术/掺铒光纤激光器/强度噪声/光电反馈Key words
laser techniques/ erbium doped fiber laser/ intensity noise/ optoelectronic feedback分类
信息技术与安全科学引用本文复制引用
张飞,朱军,汪辉,杨珂,马良川,俞本立..光电反馈抑制掺铒光纤激光器的低频强度噪声[J].量子电子学报,2012,29(3):311-315,5.基金项目
国家自然科学基金(60940022)、教育部博士点基金(20093401110002)和高校省级优秀青年人才基金(2011SQRL015)资助项目 （60940022）
