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High-speed polygon-scanner-based wavelength-swept laser source in the telescope-less configurations with application in optical coherence tomography

Motaghian Nezam, S. M. R. (2008) High-speed polygon-scanner-based wavelength-swept laser source in the telescope-less configurations with application in optical coherence tomography. Optics Letters, 33 (15). pp. 1741-1743. ISSN 0146-9592. https://resolver.caltech.edu/CaltechAUTHORS:MOTol08

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Abstract

A compact high-speed tuning laser source is demonstrated in two different configurations using a polygonal mirror scanner without a telescope. It is shown that the filter configuration finesse increases by utilizing multiple reflections from the polygon facet(s) and grating illumination(s). Theoretically, the free spectral range (FSR), the instantaneous linewidth, and the finesse of each filter configuration are derived. For single grating illumination, the measured coherence length, FSR, and power were 2.8 mm, 184 nm, and 40 mW at the scanning frequency of 50 kHz, respectively. Coherence length, FSR, and power of the second laser configuration were 6.2 mm, 117 nm, and 35 mW, respectively. Finally, images of a human finger were acquired in vivo using two proposed swept-source configurations.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1364/OL.33.001741DOIUNSPECIFIED
http://www.opticsinfobase.org/abstract.cfm?URI=ol-33-15-1741PublisherUNSPECIFIED
http://ol.osa.org/abstract.cfm?uri=ol-33-15-1741PublisherUNSPECIFIED
Additional Information:© 2008 Optical Society of America. Received March 17, 2008; revised June 30, 2008; accepted June 30, 2008; posted July 8, 2008 (Doc. ID 93945); published July 29, 2008. The author sincerely acknowledges contributions by B. Bouma and W. Oh at Harvard Medical School and Massachusetts General Hospital.
Subject Keywords:Coherence imaging; Optical coherence tomography; Medical and biological imaging
Issue or Number:15
Record Number:CaltechAUTHORS:MOTol08
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:MOTol08
Official Citation:S. M. R. Motaghian Nezam, "High-speed polygon-scanner-based wavelength-swept laser source in the telescope-less configurations with application in optical coherence tomography," Opt. Lett. 33, 1741-1743 (2008) http://www.opticsinfobase.org/abstract.cfm?URI=ol-33-15-1741
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11311
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:07 Sep 2008 07:26
Last Modified:03 Oct 2019 00:17

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