8.6-watt single-frequency CW OPO

Angus J. Henderson; Ryan Stafford

doi:10.1117/12.705123

14 February 2007 8.6-watt single-frequency CW OPO

Angus J. Henderson, Ryan Stafford

Proceedings Volume 6455, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VI; 64550E (2007) https://doi.org/10.1117/12.705123
Event: Lasers and Applications in Science and Engineering, 2007, San Jose, California, United States

Abstract

A continuous wave singly resonant optical parametric oscillator (CW SRO) has been developed which produces a total of 8.6 Watts of single frequency output at two wavelengths. 5.1 Watts of signal output at 1.65 microns and 3.5 Watts of idler output at 3.0 microns was measured, using a 15 Watt, single frequency fiber laser pump source. Power stability of 3% peak to peak was measured over a period of 24 hours and six hours of operation without longitudinal mode hops was recorded. The beam quality of both outputs was near-diffraction-limit, with an M² parameter < 1.1.We have also observed for the first time, the transition from single frequency to broadband oscillation of a CW SRO at pumping levels greater than three times threshold. At the highest pumping levels, Raman conversion of the signal frequency was observed. Based on these measurements we have been able to define an optimum operating point for CW SROs ensuring maximum conversion efficiency and single frequency oscillation.

Citation Download Citation

Angus J. Henderson and Ryan Stafford "8.6-watt single-frequency CW OPO", Proc. SPIE 6455, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VI, 64550E (14 February 2007); https://doi.org/10.1117/12.705123

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