VCSEL end-pumped passively Q-switched Nd:YAG laser with adjustable pulse energy.

نویسندگان

  • Lew Goldberg
  • Chris McIntosh
  • Brian Cole
چکیده

A compact, passively Q-switched Nd:YAG laser utilizing a Cr4+:YAG saturable absorber, is end-pumped by the focused emission from an 804 nm vertical-cavity surface-emitting laser (VCSEL) array. By changing the VCSEL operating current, we demonstrated 2x adjustability in the laser output pulse energy, from 9 mJ to 18 mJ. This energy variation was attributed to changes in the angular distribution of VCSEL emission with drive current, resulting in a change in the pump intensity distribution generated by a pump-light-focusing lens.

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عنوان ژورنال:
  • Optics express

دوره 19 5  شماره 

صفحات  -

تاریخ انتشار 2011