Wavelength tunable broadband source based on Ti:Sapphire femtosecond laser applicable to FD-OCT system

Tae Joong Eom; Hyeong-Gyu Choi; Jae Hee Sung; Chul-Sik Kee; Do-Kyeong Ko; Jongmin Lee; Eun Seo Choi

doi:10.1117/12.704228

7 February 2007 Wavelength tunable broadband source based on Ti:Sapphire femtosecond laser applicable to FD-OCT system

Tae Joong Eom, Hyeong-Gyu Choi, Jae Hee Sung, Chul-Sik Kee, Do-Kyeong Ko, Jongmin Lee, Eun Seo Choi

Proceedings Volume 6429, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI; 64292B (2007) https://doi.org/10.1117/12.704228
Event: SPIE BiOS, 2007, San Jose, California, United States

Abstract

A novel wavelength swept broadband source based on an ultrashort pulse laser and an external tunable filter was proposed for application of frequency domain-optical coherence tomography (FD-OCT). The laser beam coupled into the single mode fiber, which provided 0.5-nm instantaneous spectral linewidth with 1-mW average output power, was tuned from 740 nm to 850 at a 1 kHz repetition rate. The system with an axial resolution of 5 &mgr;m performed OCT imaging of air-gap between glass plates proving potential about the application of pulse laser source to FD-OCT system. The proposed swept source scheme could be applied for the implementation of ultra-high resolution FD-OCT system based on a supercontinuum source with an ultra-short pulse laser and a high nonlinear optical fiber.

Citation Download Citation

Tae Joong Eom, Hyeong-Gyu Choi, Jae Hee Sung, Chul-Sik Kee, Do-Kyeong Ko, Jongmin Lee, and Eun Seo Choi "Wavelength tunable broadband source based on Ti:Sapphire femtosecond laser applicable to FD-OCT system", Proc. SPIE 6429, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI, 64292B (7 February 2007); https://doi.org/10.1117/12.704228

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