摘要
针对现有扫频光学相干层析成像中扫频范围不足的问题,提出了一种基于量子点半导体光放大器(QDSOA)与量子阱半导体光放大器(QW-SOA)并联的傅里叶域锁模(FDML)高速宽带扫频光源。研究了两种SOA的输出特性,并将中心波长为1310nm的QW-SOA与中心波长为1280nm的QD-SOA并联置于光纤环形腔内,结合FDML技术,研制了一种高速宽带扫频光源。该扫频光源的扫频范围为318nm,半峰全宽为110nm,扫频速率为101kHz,光源平均输出光功率为7.8mW,瞬时线宽低于0.1nm。
Aiming at the problem of insufficient sweep range of the swept source used in the existing swept source optical coherence tomography(SS-OCT),a Fourier domain mode-locking(FDML)high-speed broadband swept source based on a quantum dot semiconductor optical amplifier(QD-SOA)and a quantum well semiconductor optical amplifier(QW-SOA)in parallel is studied.The output characteristics of two types of SOA are studied,and the QW-SOA with a center wavelength of 1310nm and the QD-SOA with a center wavelength of 1280nm are placed in parallel in the fiber annular cavity.A high-speed broadband swept source is developed combined with FDML.The sweep range is 318nm,the full width at half maximum is 110nm,the sweep speed is 101kHz,the average output optical power is 7.8mW,and the instantaneous linewidth is less than 0.1nm,respectively.
作者
汪鹏飞
童杏林
邓承伟
熊巧
金春姣
Wang Pengfei;Tong Xinglin;Deng Chengwei;Xiong Qiao;Jin Chunjiao(School of Information Engineering,Wuhan University of Technology,Wuhan,Hubei 430070,China;National Engineering Laboratory for Fiber Optic Sensing Technology,Wuhan,Hubei 430070,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2019年第20期285-291,共7页
Laser & Optoelectronics Progress
基金
国家高新技术研究发展计划（2015AA043505）
国家自然科学基金（61575148)
关键词
成像系统
光学相干层析成像
扫频光源
傅里叶域锁模
量子点半导体光放大器
扫频范围
imaging system
optical coherence tomography
swept source
Fourier domain mode-locking
quantum dot semiconductor optical amplifier
sweep range
