Mid-infrared whispering gallery resonators based on non-oxide nonlinear optical crystals

Yuechen Jia; Kevin Hanka; Ingo Breunig; Kevin T. Zawilski; Peter G. Schunemann; Karsten Buse

doi:10.1117/12.2288910

16 February 2018 Mid-infrared whispering gallery resonators based on non-oxide nonlinear optical crystals

Yuechen Jia, Kevin Hanka, Ingo Breunig, Kevin T. Zawilski, Peter G. Schunemann, Karsten Buse

Proceedings Volume 10518, Laser Resonators, Microresonators, and Beam Control XX; 105180X (2018) https://doi.org/10.1117/12.2288910
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

High-quality whispering gallery resonators (WGRs) made of AgGaSe₂ and CdSiP₂ bulk crystals are fabricated. With femtosecond laser matching and subsequent fine polishing, the intrinsic Q-factors of these resonators are approaching values of 10⁶ to 10⁷ . By adjusting the coupling condition, maximum coupling efficiencies of 60% and 30% for AgGaSe₂and CdSiP₂ resonators could be obtained. In addition, thermal effects on the distortion of the mode spectra of these resonators are also investigated. The results in this work reveal great potentials of WGRs made of non-oxide crystals for mid infrared applications.

Conference Presentation

Citation Download Citation

Yuechen Jia, Kevin Hanka, Ingo Breunig, Kevin T. Zawilski, Peter G. Schunemann, and Karsten Buse "Mid-infrared whispering gallery resonators based on non-oxide nonlinear optical crystals", Proc. SPIE 10518, Laser Resonators, Microresonators, and Beam Control XX, 105180X (16 February 2018); https://doi.org/10.1117/12.2288910

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