Abstract

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 111nm centered at 1329nm, coherence length of 5.5mm, and total average output power of 131mW at 43kHz sweeping rate. Multichannel simultaneous OCT imaging at an equivalent A-scan rate of 258kHz is demonstrated.

© 2009 Optical Society of America

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