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Proceedings Paper

High-power Q-switched fiber laser
Author(s): Tanya K. Oleskevich; Francois Seguin
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Paper Abstract

Continuous wave (cw) and Q-switched fiber lasers were implemented using highly doped erbium fiber pumped with a 980-nm pigtailed laser diode. Thresholds and slope efficiencies were characterized for various reflector combinations to achieve optimal cw operation. An output coupling of 90% was found to produce maximum output power of 30 mW at 1560 nm with 78 mW of launched pump power. Pulsed operation was achieved with low loss on the first diffracted order of a bulk acousto-optic Q-switch. Output coupling from the fiber laser was obtained through an intrinsic fiber grating. Available pump power levels of 78 mW produced 20-ns pulses of 250 W peak power and a repetition rate of up to 3.5 kHz. The effects of repetition rate, cavity losses and pump power on the pulsewidth, peak power and lasing spectrum were characterized.

Paper Details

Date Published: 5 January 1994
PDF: 7 pages
Proc. SPIE 2041, Mode-locked and Other Ultrashort Laser Designs, Amplifiers, and Applications, (5 January 1994); doi: 10.1117/12.165623
Show Author Affiliations
Tanya K. Oleskevich, Canadian Marconi Co. (United States)
Francois Seguin, Canadian Marconi Co. (Canada)


Published in SPIE Proceedings Vol. 2041:
Mode-locked and Other Ultrashort Laser Designs, Amplifiers, and Applications
Michel Piche; Paul W. Pace, Editor(s)

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