Abstract
High-power single-spatial-mode sources are required for efficient pumping of rare-earth-doped fiber amplifiers and lasers. We have demonstrated a tapered amplifier using strained layer InGaAs/AlGaAs material in a master-oscillator power-amplifier (MOPA) configuration capable of high-power cw operation at a wavelength suitable for pumping erbium.
© 1992 Optical Society of America
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