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Effect of the spectral composition of laser diode pumping of Nd3+:YAG lasers on the reduction of pump efficiency for a temperature shift of the spectrum by 25–30  nm

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Abstract

The change in the absorption efficiency of laser diode emission in the gain medium of Nd3+:YAG lasers is considered for a temperature shift of the pump spectrum by 25–30 nm. It is shown that, for a typical width of the emission spectrum of modern linear laser diode arrays, the minimum efficiency can be significantly increased if the pump spectrum consists of not one but two spectral peaks of different intensities. The increase in the number of peaks to more than two does not lead to any significant improvement in efficiency.

© 2018 Optical Society of America

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