Real-time, ultrahigh-resolution, optical coherence tomography with an all-fiber, femtosecond fiber laser continuum at 1.5 μm
Real-time, ultrahigh-resolution, optical coherence tomography with an all-fiber, femtosecond fiber laser continuum at 1.5 μm
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DOI：
10.1364/ol.29.002846
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发表时间：
2004-12-15
期刊：
影响因子：
3.6
通讯作者：
Fujimoto, JG
中科院分区：
文献类型：
--
作者：
Nishizawa, N;Chen, Y;Fujimoto, JG
利用拉伸脉冲、被动锁模掺铒光纤激光器和高非线性光纤，在1.4 - 1.7μm波长区域实现了实时、超高分辨率光学相干层析成像（OCT）。该光纤激光器以51MHz的重复频率产生100mW的线性啁啾脉冲。这些脉冲被压缩后耦合到正常色散的高非线性光纤中，以产生具有180nm半高全宽带宽和38mW输出功率的低噪声超连续谱。这种光源稳定、紧凑且宽带，可实现高速、实时、高分辨率的OCT成像。展示了对人体皮肤的活体高速OCT成像，其分辨率约为5.5μm，灵敏度为99dB。（C）2004美国光学学会
Real-time, ultrahigh-resolution optical coherence tomography (OCT) is demonstrated in the 1.4-1.7-mum wavelength region with a stretched-pulse, passively mode-locked, Er-doped fiber laser and highly nonlinear fiber. The fiber laser generates 100-mW, linearly chirped pulses at a 51-MHz repetition rate. The pulses are compressed and then coupled into a normally dispersive highly nonlinear fiber to generate a low-noise supercontinuum with a 180-nm FWHM bandwidth and 38 mW of output power. This light source is stable, compact, and broadband, permitting high-speed, real-time, high-resolution OCT imaging. In vivo high-speed OCT imaging of human skin with similar to5.5-mum resolution and 99-dB sensitivity is demonstrated. (C) 2004 Optical Society of America.