Understanding fifth-harmonic generation in CLBO

S. Patankar; S. T. Yang; J. D. Moody; A. J. Bayramian; G. F. Swadling; D. Barker; P. Datte; G. Mennerat; M. Norton; C. W. Carr; I. A. Begishev; J. Bromage; J. S. Ross

doi:10.1117/12.2288496

15 February 2018 Understanding fifth-harmonic generation in CLBO

S. Patankar, S. T. Yang, J. D. Moody, A. J. Bayramian, G. F. Swadling , D. Barker, P. Datte, G. Mennerat, M. Norton, C. W. Carr, I. A. Begishev, J. Bromage, J. S. Ross

Author Affiliations +

Proceedings Volume 10516, Nonlinear Frequency Generation and Conversion: Materials and Devices XVII; 1051603 (2018) https://doi.org/10.1117/12.2288496
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

We report on results of fifth harmonic generation in Cesium Lithium Borate (CLBO) using a three-crystal cascaded frequency conversion scheme designed to study the energy balance of the final sum frequency generation stage. The experimental setup independently combines the first and fourth harmonic of a Nd:Glass laser in a 5mm thick CLBO crystal. Energy balance between the incoming and output energy is close to unity when the CLBO is out of phase matching and approximately 80% when the crystal is in phase matching. A detailed analysis of the residual fundamental and fourth harmonic energy indicates 5^th harmonic light is being generated but only 26% is unaccounted for. We attribute the missing light to linear transmission loss in the CLBO oven. The ratio of the output to input energy is unity when the missing 5^th harmonic is incorporated into the calculations. Two-dimensional plane wave mixing simulations show agreement with the results at lower intensities.

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S. Patankar, S. T. Yang, J. D. Moody, A. J. Bayramian, G. F. Swadling , D. Barker, P. Datte, G. Mennerat, M. Norton, C. W. Carr, I. A. Begishev, J. Bromage, and J. S. Ross "Understanding fifth-harmonic generation in CLBO", Proc. SPIE 10516, Nonlinear Frequency Generation and Conversion: Materials and Devices XVII, 1051603 (15 February 2018); https://doi.org/10.1117/12.2288496

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