A diode end pumped, T-shaped laser cavity has been built for experimental investigation. The fundamental pump laser cavity is a twisted mode cavity to eliminate the spatial hole burning for effective injection seeding. The Raman laser cavity is a linear standing wave cavity because Raman gain medium does not suffer spatial hole burning as traditional laser gain medium. The linewidth and temporal profile of the Raman laser is experimentally investigated with narrow and broadband fundamental pump emission. We have, for the first time, demonstrated an injection seeded, high peak power, narrow linewidth intra-cavity Raman laser for potential use in a sodium resonance fluorescence lidar.
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Steven X. Li, Anthony W. Yu, Michael A. Krainak, Yingxin Bai, Oleg Konoplev, Molly E. Fahey, Kenji Numata, "Progress on Raman laser for sodium resonance fluorescence lidar," Proc. SPIE 10511, Solid State Lasers XXVII: Technology and Devices, 105111H (15 February 2018);