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题名:
All-fiber ring-cavity based frequency swept laser source for frequency domain OCT
作者: Chen, Minghui1; Ding, Zhihua1; Xu, Lei1; Wu, Tong1; Wang, Chuan1; Shi, Guohua2; Mang, Yudong2
刊名: CHINESE OPTICS LETTERS
出版日期: 2010-02-10
卷号: 8, 期号:2, 页码:202-205
文章类型: Article
英文摘要: We develop a high-speed tunable, quasi-continuous-wave laser source for frequency domain (FD) optical coherence tomography (our). The laser resonance is realized within a unidirectional all-fiber ring cavity consisting of a fiber coupler, two fiber isolators, a semiconductor optical amplifier (SOA), and a fiber Fabry-Perot tunable filter (FFP-TF) for frequency tuning. Light output from the coupler is further amplified and spectral shaped by a booster SOA terminated at both ends with two isolators. The developed laser source provides up to 8000 sweeps per second over a full-width wavelength tuning range of 120 nm at center wavelength of 1320 run with an average power of 9 mW, yielding an axial resolution of 13.6 mu m in air and a maximum sensitivity of about 112 dB for OCT imaging. The instantaneous linewidth is about 0.08 nm, enabling OCT imaging over an axial range of 3.4 mm in air. For optimization consideration based on this custom-built swept: laser, experimental study on imaging quality relevant parameters of the swept laser with sine and ramp driving waveforms to the FFP-TF is conducted, and investigation of the swept laser on the cavity length is done. Implementing the laser source in our established swept source based OCT (SS-OCT) system, real-time structural imaging of biological tissue is demonstrated.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: OPTICAL COHERENCE TOMOGRAPHY ; HIGH-SPEED
收录类别: SCI
语种: 英语
WOS记录号: WOS:000274323800022
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3329
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China

Recommended Citation:
Chen, Minghui,Ding, Zhihua,Xu, Lei,et al. All-fiber ring-cavity based frequency swept laser source for frequency domain OCT[J]. CHINESE OPTICS LETTERS,2010,8(2):202-205.
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