M.R. Surette

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Wavefront lensing due to nonuniform carrier saturation in rectangular (broad-area) and tapered GaAlAs amplifiers is described. Lensing dependence on current and input power, measured interferometrically and by a lens displacement method, agree with calculations based on a beam propagation model. Lensing induced astigmatism, calculated for a representative(More)
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(More)
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