Fiber Fabry-Perot tunable filter based Fourier domain mode locking swept laser source

被引：4
作者：
Chen Ming-Hui [1 ]
Ding Zhi-Hua [2 ]
Wang Cheng [1 ]
Song Cheng-Lin [1 ]
机构：
[1] Univ Shanghai Sci & Technol, Sch Med Instrument & Food Engn, Shanghai Inst Minimally Invas Therapy, Shanghai 200093, Peoples R China
[2] Zhejiang Univ, Dept Opt Engn, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China
来源：
ACTA PHYSICA SINICA | 2013年 / 62卷 / 06期
基金：
中国国家自然科学基金;
关键词：
optical coherence tomography; swept laser source; Fourier domain mode locking; fiber Fabry-Perot tunable filter; OPTICAL COHERENCE TOMOGRAPHY; OCT;
D O I：
10.7498/aps.62.068703
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
An all-fiber Fourier domain mode locking (FDML) swept laser source at 1300 nm for swept source optical coherence tomography is reported. The swept laser source is realized with power amplification and laser resonator which includes gain medium, tunable filter and dispersion managed delay line. FDML swept laser can realize high-speed tuning, and phase is stable since its highly stable mode locking operation. The turning range of fiber Fabry-Perot tunable filter (FFP-TF) based FDML swept laser is 130 nm, and the 3 dB bandwidth is 70 nm with an average output power of 11 mW. The tunable speed of FDML laser is 48.12 kHz compared with 8 kHz of short-cavity FFP-TF based swept laser. The axial resolution in OCT imaging of FDML swept laser is 7.8 mu m (in tissue), which is improved by 1.9 mu m compared with that of short-cavity swept laser.
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页数：5
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