Extra-Cavity Pumped Parametric Raman Crystalline Anti-Stokes Laser at 954 Nm with Collinear Orthogonally Polarized Beam Interaction at Tangential Phase Matching

Tangentially phase-matched parametric Raman CaCO
₃
anti-Stokes laser at 954 nm with the extra-cavity 1064-nm 6-ns laser pumping was investigated. The highest optical-to-optical efficiency into the anti-Stokes of ~ 4 % and 0.3-mJ output energy was achieved.