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Proceedings Article

MEMS scanner based swept source laser for optical coherence tomography

[+] Author Affiliations
Kouki Totsuka, Keiji Isamoto, Tooru Sakai, Atsushi Morosawa, Changho Chong

Santec Corp. (Japan)

Proc. SPIE 7554, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV, 75542Q (February 19, 2010); doi:10.1117/12.841528
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From Conference Volume 7554

  • Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV
  • Joseph A. Izatt; James G. Fujimoto; Valery V. Tuchin
  • San Francisco, California | January 23, 2010

abstract

We developed a swept source laser using a micro electro mechanical systems(MEMS) scanner mirror, and demonstrated optical coherence tomography. To enable both the wide tuning wavelength range and high scanning frequency, we introduced 2-degree-of-freedom(2-DOF) MEMS scanner mirror. A tunable optical filter is composed of a MEMS scanner mirror and a diffraction grating which is arranged in Littrow configuration. We built a swept source laser which has a wavelength range of 143 nm, center wavelength of 1304 nm, and a peak power of 16 mW. OCT measurements are performed at a rate of 17.9 kHz and doubled 35.9 kHz at unidirectional and bidirectional sweeps, respectively. The system sensitivity is 101.5 dB.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Kouki Totsuka ; Keiji Isamoto ; Tooru Sakai ; Atsushi Morosawa and Changho Chong
"MEMS scanner based swept source laser for optical coherence tomography", Proc. SPIE 7554, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV, 75542Q (February 19, 2010); doi:10.1117/12.841528; http://dx.doi.org/10.1117/12.841528


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