2014/03/24 by Omid Kokabee, Kokabee, Omid
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #FOS: Physical sciences #Optics (physics.optics) #Photorefractive and Nonlinear Optics #Solid State Laser Technologies
paper · pdf · doi:10.48550/arxiv.1403.6066
openalex publication_date 2014/03/24 · openalex created_date 2022/09/30 · openalex updated_date 2026/07/28
Absolute output power optimization and performance of a near- to mid-infrared\npicosecond optical parametric oscillator (OPO) is studied at two high pump\npowers using a widely-tunable output coupling (OC) technique which provides 15%\nto 68% OC. The MgO:PPLN-based OPO is synchronously pumped at 81.1 MHz by an\nYb:fiber laser with double-peak spectrum. At 2 W pump power, maximum signal (at\n1.46 \μm) and idler (at 3.92 \μm) power of 670 mW and 270 mW are obtained\nat 27% OC at 47% total extraction efficiency and 58% pump power depletion where\nat 15.5 W pump power, 7.4 W signal and 2.7 W idler power are extracted at 53%\nOC at 65% total extraction efficiency and 80% pump depletion. With respect to\nnon-optimum points, OPO provides signal pulses with narrower single-peak\nspectrum, smaller time-bandwidth product, much better circular single-mode\nTEM00 spatial profile and passive peak-to-peak power stability of \±4.6% at\n2 W and \±1% at 15.5 W pump power in optimum power extraction points.\n