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Improvement of wavelength-scanning range in acousto-optically tuned external-cavity laser diode

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An optical coherence tomography (OCT) has attracted considerable attention as a method of precise measurement. A swept source that possesses an external resonator using a diffraction grating and an acousto-optic deflector (AOD) was developed for swept-source (SS) OCT. We have conducted numerical simulations and reconfigured the external-cavity based on the results. We confirmed that the wavelength scanning range was expanded from 22.30[nm] to 66.56[nm]

© 2018 Optical Society of Japan

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