1053 nm Raman random fiber laser with 182% slope efficiency

In high power laser facilities, using low-coherence lightwave could effectively suppress laser-plasma instability. Raman random fiber laser (RRFL) is a typical low-coherence light source whose working wavelength is determined by pump wavelength and gain medium. Utilizing the home-made 1010 nm laser to pump HI 1060 Flex fiber, 1053 nm RRFL is achieved for the first time with 182% slope efficiency. The work could further broaden the application of RRFL in the field of high energy density physics.