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Simultaneous Wavelength-stabilization of 980-nm Pump Lasers

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High power 980-nm strained QW semiconductor lasers connected to the input ports of a 4×4 fused fiber star coupler are simultaneously wavelength-locked through reflection from a single narrow-band fiber grating connected to one output port. This configuration enables simple pump wavelength control, inhibits deleterious pump-laser interactions, and improves amplifier reliability through pump redundancy.

© 1993 Optical Society of America

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