Watt-level all-fiber 1.7-μm picosecond synchronously pumped Raman laser

A synchronously pumped fiber Raman laser (SPFRL) operating at 1.7 mu m is proposed and experimentally demonstrated for the first time to the best of our knowledge. Through the third harmonic pumping by a 1563 nm picosecond pulsed fiber laser, the Stokes pulses are generated with an average power of 1.9 W, a pulse duration of 21 ps, and a repetition frequency of 52.9 MHz. The center wavelength and the 3-dB bandwidth are 1694.3 nm and 0.96 nm respectively. This work provides a pathway to a power scalable ultrafast laser at 1.7 mu m via a compact and elegant all-fiber solution.

Automated summary

This work proposes and experimentally demonstrates for the first time a synchronously pumped fiber Raman laser (SPFRL) operating at 1.7 μm. The Stokes pulses are generated through third harmonic pumping by a 1563 nm picosecond pulsed fiber laser, with high average power, short pulse duration, and high repetition frequency. This work provides a pathway to a power scalable ultrafast laser at 1.7 μm via a compact and elegant all-fiber solution.