Abstract
We demonstrate a low pulse repetition frequency (LPRF) Q-switched erbium-doped fiber (EDF) lasers based on acoustic optical modulator (AOM). The single wavelength fiber laser has a stable output at 1553 nm. In Q-switched operation, a pulse train with 3.3μs width and a repetition rate of 1kHz is obtained. The dual wavelength fiber laser is based on fiber Bragg gratings (FBGs) and a Faraday rotator mirror (FRM) as the laser cavity, which has a stable output at 1545 nm and 1557 nm with similar peak power and same repetition rate.
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