LD Pump Single-Longitudinal-Mode Nd:GdVO4/RTP Solid-State Green Laser

The single-longitudinal-mode Nd:GdVO₄/RTiOPO₄ (RTP) solid-state Green laser operation of a laser-diode (LD) end-pumped laser is realized by multi-cavities and a Brewster plate. The LD-pumped single-frequency green laser has been demonstrated by optimizing several parameters and a cavity length, with precise temperature controlling of Nd:GdVO₄, RTP and laser diode. When the incident pump power is 2W at 808.4nm, a single-frequency cw green laser at 532nm with output 210mW is obtained, the optical-to-optical conversion efficiency is up to 10.5%.