15 February 2012 Comparison of linear and RISTRA cavities for a 1064-nm pumped CdSiP2 OPO
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Abstract
The beam quality of the idler output of a 1064 nm pumped OPO based on CdSiP2 is compared for linear and Rotated Image Singly-Resonant Twisted RectAngle (RISTRA) cavities. For similar mirrors and cavity round trip times the RISTRA cavity yielded 64 μJ of idler energy (6.4 mW of average power at 100 Hz) compared to 34 μJ with the linear cavity, at a pump level of 21.5 mJ, roughly two times above threshold. The RISTRA cavity generated a somewhat smoother idler beam spatial profile (characterized by moving a knife-edge) and the intensity in the focus of a 10-cm lens was about 50% higher.
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Georgi Marchev, Georgi Marchev, Aleksey Tyazhev, Aleksey Tyazhev, Georg Stöppler, Georg Stöppler, Marc Eichhorn, Marc Eichhorn, Peter G. Schunemann, Peter G. Schunemann, Valentin Petrov, Valentin Petrov, } "Comparison of linear and RISTRA cavities for a 1064-nm pumped CdSiP2 OPO", Proc. SPIE 8240, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI, 82400E (15 February 2012); doi: 10.1117/12.907436; https://doi.org/10.1117/12.907436
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