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High-power ring laser using a broad-area GaAlAs amplifier

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3 Author(s)
Surette, Marc R. ; US Naval Res. Lab., Washington, DC, USA ; Goldberg, L. ; Mehuys, David

A high-power external-cavity ring laser, incorporating a 600- mu m-wide GaAlAs traveling wave amplifier as a gain element, is demonstrated. The laser generated a pulsed (200 ns) output power of 9.3 W with a near-diffraction-limited beam quality and unidirectional ring propagation. The power versus output coupling dependence agreed with independently measured gain saturation characteristics of the amplifier.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:5 ,  Issue: 8 )