Abstract

We report a 671 nm laser source emitting 225 ps pulses with an average power of 55 mW and a repetition rate of 444 kHz. The system consists of a 1342 nm SESAM $Q$-switched $\mathrm{Nd}\text{:}{\mathrm{YVO}}_4$ microchip master oscillator and a dual-stage $\mathrm{Nd}\text{:}{\mathrm{YVO}}_4$ power amplifier. The 1342 nm signal was frequency-doubled to 671 nm using a periodically poled lithium niobate crystal. This laser source provides a practical alternative for applications requiring high energy picosecond pulses, such as time-gated Raman spectroscopy.

© 2016 Optical Society of America

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