The stimulated Raman-scattering (SRS) gain coefficient has been measured quantitatively for the first time to our knowledge in Yb:Sr<sub>5</sub>(PO<sub>4</sub>)<sub>3</sub>F to be 1.23 ∓ 0.12 cm/GW at 1053 nm. These data, along with surface and bulk losses, feedback that is due to surface reflections, gain saturation, and bandwidth, have been applied to a quantitative model that predicts the effects of SRS within a laser amplifier system where the laser gain media show SRS gain. Limitations and impact to the laser amplifier performance are discussed, along with possible techniques to reduce SRS loss.
© 2000 Optical Society of America
(140.4480) Lasers and laser optics : Optical amplifiers
(160.3380) Materials : Laser materials
(190.5650) Nonlinear optics : Raman effect
(190.5890) Nonlinear optics : Scattering, stimulated
(290.5910) Scattering : Scattering, stimulated Raman
Andy J. Bayramian, Camille Bibeau, Raymond J. Beach, Christopher D. Marshall, and Stephen A. Payne, "Consideration of Stimulated Raman Scattering in Yb:Sr5(PO4)3F Laser Amplifiers," Appl. Opt. 39, 3746-3753 (2000)