>400 kHz repetition rate wavelength-swept laser and application to high-speed optical frequency domain imaging.
We demonstrate a high-speed wavelength-swept laser with a tuning range of 104 nm (1228-1332 nm) and a repetition rate of 403 kHz. The design of the laser utilizes a high-finesse polygon-based wavelength-scanning filter and a short-length unidirectional ring resonator. Optical frequency domain imaging of the human skin in vivo is presented using this laser, and the system shows sensitivity of higher than 98 dB with single-side ranging depth of 1.7 mm over 4 dB sensitivity roll-off.
Oh
Wang-Yuhl
WY
Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, BAR 704, Boston, Massachusetts 02114, USA. woh1@kaist.ac.kr
Vakoc
Benjamin J
BJ
Shishkov
Milen
M
Tearney
Guillermo J
GJ
Bouma
Brett E
BE
D006801:Humans; D007834:Lasers; D057054:Molecular Imaging / Q000379:methods*; D055620:Optical Phenomena; D012867:Skin; D013997:Time Factors
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