18 March 2013 Wide temperature operation of a VCSEL pumped 355nm frequency tripled Nd:YAG laser
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We have fabricated prototype frequency tripled Nd:YAG lasers using 808nm Vertical Cavity Surface emitting laser (VCSEL) arrays for end-pumping. The passively Q-switched Nd:YAG laser generated 15mJ pulses with a duration of 2-4 ns. Used as a source for third harmonic generation, the laser produced in excess of 2mJ at 355nm. Of particular concern was the impact of temperature variation on conversion efficiency, which included effects for both the source laser and non-linear crystals. Various solutions to the temperature effects were explored to enable operation of the frequency tripled laser over a wide temperature range.
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Brian Cole, Brian Cole, Alan Hays, Alan Hays, Chris McIntosh, Chris McIntosh, Lew Goldberg, Lew Goldberg, "Wide temperature operation of a VCSEL pumped 355nm frequency tripled Nd:YAG laser", Proc. SPIE 8599, Solid State Lasers XXII: Technology and Devices, 85991L (18 March 2013); doi: 10.1117/12.2006254; https://doi.org/10.1117/12.2006254


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