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Optics Letters

Optics Letters


  • Vol. 36, Iss. 11 — Jun. 1, 2011
  • pp: 1990–1992

Simultaneous dual-wavelength-band common-path swept-source optical coherence tomography with single polygon mirror scanner

Youxin Mao, Shoude Chang, Erroll Murdock, and Costel Flueraru  »View Author Affiliations

Optics Letters, Vol. 36, Issue 11, pp. 1990-1992 (2011)

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We report a novel (to the best of our knowledge) simultaneous 1310 / 1550 two-wavelength band swept laser source and dual-band common-path swept-source optical coherence tomography (SS-OCT). Synchronized dual- wavelength tuning is performed by using two laser cavities and narrowband wavelength filters with a single dual-window polygonal scanner. Measured average output powers of 60 and 27 mW have been achieved for the 1310 and 1550 nm bands, respectively, while the two wavelengths were swept simultaneously from 1227 to 1387 nm for the 1310 nm band and from 1519 to 1581 nm for the 1550 nm band at an A-scan rate of 65 kHz . Broadband wavelength-division multiplexing is used for coupling two wavelengths into a common-path single-mode GRIN-lensed fiber probe to form dual-band common-path SS-OCT. Simultaneous OCT imaging at 1310 and 1550 nm is achieved. This technique allows for in vivo high-speed OCT imaging with potential application in functional (spectroscopic) investigations.

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(140.3600) Lasers and laser optics : Lasers, tunable
(170.4500) Medical optics and biotechnology : Optical coherence tomography
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Imaging Systems

Original Manuscript: February 28, 2011
Revised Manuscript: April 21, 2011
Manuscript Accepted: April 22, 2011
Published: May 23, 2011

Virtual Issues
Vol. 6, Iss. 7 Virtual Journal for Biomedical Optics

Youxin Mao, Shoude Chang, Erroll Murdock, and Costel Flueraru, "Simultaneous dual-wavelength-band common-path swept-source optical coherence tomography with single polygon mirror scanner," Opt. Lett. 36, 1990-1992 (2011)

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