Temperature tuned 90° phase-matched CO2 laser doubling in AgGa1-xInxS2 crystal

Saumyabrata Banerjee; Kentaro Miyata; Kiyoshi Kato

doi:10.1117/12.760564

13 February 2008 Temperature tuned 90° phase-matched CO₂ laser doubling in AgGa_1-xIn_xS₂ crystal

Saumyabrata Banerjee, Kentaro Miyata, Kiyoshi Kato

Proceedings Volume 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII; 687517 (2008) https://doi.org/10.1117/12.760564
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

90° phase-matched type-I second harmonic generation (SHG) of CO₂ laser radiation at 10.591μm is demonstrated at 203°C in mixed chalcopyrite AgGa_1-xIn_xS₂ crystal with x = 0.14 ± 0.01. In addition, temperature-tuned difference frequency generation (DFG) at 4.02μm is obtained by mixing the idler output of a Nd:YAG third harmonic pumped β-BBO optical parametric oscillator and its fundamental source at 1.0642μm. The Sellmeier and thermo-optic dispersion formulas that reproduce well these experimental results are presented.

Citation Download Citation

Saumyabrata Banerjee, Kentaro Miyata, and Kiyoshi Kato "Temperature tuned 90° phase-matched CO₂ laser doubling in AgGa_1-xIn_xS₂ crystal", Proc. SPIE 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII, 687517 (13 February 2008); https://doi.org/10.1117/12.760564

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