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In the present paper a Nd:YAG crystal pumped with a high power fibercoupleddiode laser module at 808nm is optimized by using the simulation ofthe LASCAD software. The module is used to investigate the optimum cavitydesign parameters. In the present paper was optimized the cavity designparameters by controlling the cavity length, the beam overlap parameter, theNd:YAG rod dimension, and the output coupler reflectvity. The practicalexample of a Nd:YAG laser pumped by a 7.8W fiber-coupled laser diodemodule is considered to confirm the suggestes physical analysis. The cavityoptimum configuration was cavity length 65mm, Nd:YAG rod dimensionø3mmx10mm with 1% doping concentration (1at.%), and output couplerreflectivity 85%. The pump waist spot size g w equal to the beam waist spot sizeg w . The final optical to optical efficiency is 39%.
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A 2011 study studied this question.
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