High-power wavelength-swept laser in Littman telescope-less polygon filter and dual-amplifier configuration for multichannel optical coherence tomography

We report a high-power wavelength-swept laser source for multichannel optical coherence tomography (OCT) imaging. Wavelength tuning is performed by a compact telescope-less polygon-based filter in Littman arrangement. High output power is achieved by incorporating two serial semiconductor optical am...

Full description

Saved in:
Bibliographic Details
Published inOptics letters Vol. 34; no. 18; p. 2814
Main Authors Leung, Michael K K, Mariampillai, Adrian, Standish, Beau A, Lee, Kenneth K C, Munce, Nigel R, Vitkin, I Alex, Yang, Victor X D
Format Journal Article
LanguageEnglish
Published United States 15.09.2009
Subjects
Amplifiers, Electronic
Equipment Design
Fourier Analysis
Humans
Lasers
Motion
Nails - pathology
Optics and Photonics
Time Factors
Tomography, Optical Coherence - instrumentation
Tomography, Optical Coherence - methods
Online AccessGet more information

Cover

More Information
Summary:We report a high-power wavelength-swept laser source for multichannel optical coherence tomography (OCT) imaging. Wavelength tuning is performed by a compact telescope-less polygon-based filter in Littman arrangement. High output power is achieved by incorporating two serial semiconductor optical amplifiers in the laser cavity in Fourier domain mode-locked configuration. The measured wavelength tuning range of the laser is 111 nm centered at 1329 nm, coherence length of 5.5 mm, and total average output power of 131 mW at 43 kHz sweeping rate. Multichannel simultaneous OCT imaging at an equivalent A-scan rate of 258 kHz is demonstrated.
ISSN:1539-4794
DOI:10.1364/OL.34.002814