High-energy 450-MHz CdSiP2 picosecond optical parametric oscillator near 6.3 &#956;m for biomedical applications

S. Chaitanya Kumar; A. Agnesi; P. Dallocchio; F. Pirzio; G. C. Reali; K. T. Zawilski; P. G. Schunemann; M. Ebrahim-Zadeh

doi:10.1117/12.904768

15 February 2012 High-energy 450-MHz CdSiP₂ picosecond optical parametric oscillator near 6.3 μm for biomedical applications

S. Chaitanya Kumar, A. Agnesi, P. Dallocchio, F. Pirzio, G. C. Reali, K. T. Zawilski, P. G. Schunemann, M. Ebrahim-Zadeh

Author Affiliations +

Proceedings Volume 8240, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI; 82400Q (2012) https://doi.org/10.1117/12.904768
Event: SPIE LASE, 2012, San Francisco, California, United States

Abstract

We report a compact, efficient, high-energy and high-repetition-rate mid-infrared picosecond optical parametric oscillator (OPO) based on a new nonlinear material CdSiP₂. The OPO is synchronously pumped by a master-oscillator power-amplifier system at 1064.1 nm, providing 1-μs-long macro-pulses constituting 8.6 ps micro-pulses at 450 MHz, and can be tuned over 486 nm across 6091-6577 nm, covering the technologically important wavelength range for surgical applications. Using a compact cavity (~30 cm) and a CdSiP₂ crystal, idler macro-pulse energy as high as 1.5 mJ has been obtained at 6275 nm, for an input energy of 30 mJ. The extracted signal pulses have durations of 10.6 ps.

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S. Chaitanya Kumar, A. Agnesi, P. Dallocchio, F. Pirzio, G. C. Reali, K. T. Zawilski, P. G. Schunemann, and M. Ebrahim-Zadeh "High-energy 450-MHz CdSiP₂ picosecond optical parametric oscillator near 6.3 μm for biomedical applications", Proc. SPIE 8240, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI, 82400Q (15 February 2012); https://doi.org/10.1117/12.904768

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