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1 September 1993 Diode-pumped Q-switched fiber laser
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A Q-switched fiber laser is developed for eyesafe ranging applications. Using a highly doped erbium fiber pumped with a 30-mW laser diode at 980 nm, pulses of 290-W peak power and 20-ns duration are obtained. The laser consists of all-fiber elements, with the exception of a high-efficiency bulk acousto-optic Bragg cell aligned to the laser on the diffracted beam to provide Q-switching with high hold-off. Three emission bands of erbium are made to lase in continuous wave (cw) and Q-switched operation. It is established that optimal cw lasing is achieved at 1560 nm, and maximum intensity Q-switch pulses are produced at 1530 nm. The laser was packaged and tested in the field, demonstrating the readiness of this technology for ranging applications.
Francois Seguin and Tanya K. Oleskevich "Diode-pumped Q-switched fiber laser," Optical Engineering 32(9), (1 September 1993).
Published: 1 September 1993


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