High-speed-frequency swept light source for Fourier domain OCT at 20-kHz A-scan rate

Robert Huber; Kenji Taira; Maciej Wojtkowski; Tony Hong-Tyng Ko; James G. Fujimoto; Kevin Hsu

doi:10.1117/12.592552

13 April 2005 High-speed frequency swept light source for Fourier domain OCT at 20 kHz A-scan rate

Robert Huber, Kenji Taira, Maciej Wojtkowski, Tony Hong-Tyng Ko, James G. Fujimoto, Kevin Hsu

Proceedings Volume 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX; (2005) https://doi.org/10.1117/12.592552
Event: SPIE BiOS, 2005, San Jose, CA, United States

Abstract

We demonstrate a high-speed tunable, continuous wave laser source for Fourier domain OCT. The laser source is based on a fiber coupled, semiconductor optical amplifier and a tunable ultrahigh finesse, fiber Fabry Perot filter for frequency tuning. The light source provides frequency scan rates of up to 20,000 sweeps per second over a wavelength range of >70 nm FWHM at 1330 nm, yielding an axial resolution of ~14 μm in air. The linewidth is narrow and corresponds to a coherence length of several mm, enabling OCT imaging over a large axial range.

Citation Download Citation

Robert Huber, Kenji Taira, Maciej Wojtkowski, Tony Hong-Tyng Ko, James G. Fujimoto, and Kevin Hsu "High-speed frequency swept light source for Fourier domain OCT at 20 kHz A-scan rate", Proc. SPIE 5690, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine IX, (13 April 2005); https://doi.org/10.1117/12.592552

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