Q-switched/cw pulse trains produced by mode-locked fiber laser

Serey Thai; Mark A. Getbehead; Andrew R. Pirich

doi:10.1117/12.391911

18 July 2000 Q-switched/cw pulse trains produced by mode-locked fiber laser

Serey Thai, Mark A. Getbehead, Andrew R. Pirich

Proceedings Volume 4042, Enabling Photonic Technologies for Aerospace Applications II; (2000) https://doi.org/10.1117/12.391911
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

A mode-locked erbium-ytterbium fiber laser operating at 1550 nm using multiple quantum well (MQW) saturable absorbers was developed. The laser was constructed in a Fabry-Perot configuration using a fiber Bragg grating as a front reflector and a fiber chirped Bragg grating output as a back reflector of the laser cavity. The laser can either produce Q-switched or CW passively mode-locked pulse trains by simply changing the location of the saturable absorber with respect to a focal plane. The pulse train of laser Q- switching operates at an 85-KHz repetition rate when the position of the absorber is near the focus. Peak power of the Q-switching pulses is about thirty times higher than for the CW mode locking which occurs when the absorber is placed exactly at the focal plane. The CW passively mode-locked pulse trains have a 19-MHz repetition rate with 2.6-mW average output power.

Citation Download Citation

Serey Thai, Mark A. Getbehead, and Andrew R. Pirich "Q-switched/cw pulse trains produced by mode-locked fiber laser", Proc. SPIE 4042, Enabling Photonic Technologies for Aerospace Applications II, (18 July 2000); https://doi.org/10.1117/12.391911

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