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 centered at , coherence length of , and total average output power of at sweeping rate. Multichannel simultaneous OCT imaging at an equivalent A-scan rate of is demonstrated.
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