Scheme for achieving a continuous-wave laser operation at 1178  nm.
We report for the first time, to the best of our knowledge, a new scheme for generating the important 1178 nm laser. Based on a high-power 1018 nm fiber laser as the pump source and chemical vapor deposition diamond as the Raman gain medium, the Raman laser was capable of generating 34.6 W output power centered at 1178.02 nm. As far as we know, 34.6 W is the highest output power of a 1178 nm laser obtained within a crystalline Raman gain medium. The experimental results show the superiority of our scheme in obtaining 1178 nm laser generation.