Chinese Optics Letters, 2016, 14 (1): 011401, Published Online: Aug. 6, 2018
850 nm centered wavelength-swept laser based on a wavelength selection galvo filter
Abstract
A wavelength-swept laser is constructed using a free space external cavity configuration coupled with a fiber-based ring cavity at the 850 nm region. The external cavity filter employs a galvo-mirror scanner with a diffraction grating for wavelength selection. The filter is connected to a ring cavity through an optical circulator. The ring cavity contains a broadband semiconductor optical amplifier with a high optical output. The performance of this laser is demonstrated with broad bandwidths and narrow linewidths. The 3 dB linewidth and the bandwidth of this source are 0.05 nm (~ 20 GHz ) and 48 nm, respectively. The maximum output power is 26 mW at 160 mA current.
Muhammad Faizan Shirazi, Mansik Jeon, Jeehyun Kim. 850 nm centered wavelength-swept laser based on a wavelength selection galvo filter[J]. Chinese Optics Letters, 2016, 14(1): 011401.