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Proceedings Paper

Wavelength tunable broadband source based on Ti:Sapphire femtosecond laser applicable to FD-OCT system
Author(s): Tae Joong Eom; Hyeong-Gyu Choi; Jae Hee Sung; Chul-Sik Kee; Do-Kyeong Ko; Jongmin Lee; Eun Seo Choi
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Paper 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.

Paper Details

Date Published: 7 February 2007
PDF: 7 pages
Proc. SPIE 6429, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI, 64292B (7 February 2007); doi: 10.1117/12.704228
Show Author Affiliations
Tae Joong Eom, Gwangju Institute of Science and Technology (South Korea)
Hyeong-Gyu Choi, Gwangju Institute of Science and Technology (South Korea)
Jae Hee Sung, Gwangju Institute of Science and Technology (South Korea)
Chul-Sik Kee, Gwangju Institute of Science and Technology (South Korea)
Do-Kyeong Ko, Gwangju Institute of Science and Technology (South Korea)
Jongmin Lee, Gwangju Institute of Science and Technology (South Korea)
Eun Seo Choi, Chosun Univ. (South Korea)


Published in SPIE Proceedings Vol. 6429:
Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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