Tuning characteristics of femtosecond optical parametric oscillator with broadband chirped mirrors

Karolina Stankevičiūtė; Mikas Vengris; Simas Melnikas; Simonas Kičas; Rimantas Grigonis; Valdas Sirutkaitis

doi:10.1117/1.OE.54.12.126111

22 December 2015 Tuning characteristics of femtosecond optical parametric oscillator with broadband chirped mirrors

Karolina Stankevičiūtė, Mikas Vengris, Simas Melnikas, Simonas Kičas, Rimantas Grigonis, Valdas Sirutkaitis

Author Affiliations +

Optical Engineering, Vol. 54, Issue 12, 126111 (December 2015). https://doi.org/10.1117/1.OE.54.12.126111

Abstract

We present the investigation of a synchronously pumped optical parametric oscillator (SPOPO) based on beta barium borate (BBO) nonlinear crystal with broadband complementary chirped mirror pairs (CMPs). Three SPOPO cavity configurations with slightly different intracavity dispersion were explored. Dispersion properties of cavity mirrors were characterized using a white light interferometer and found to be the key factor determining the gap-free tuning range as well as simultaneous multiwavelength generation. The SPOPO is pumped by the second harmonic of a Yb:KGW oscillator and provides signal pulses tunable over a spectral range from 625 to 980 nm. Signal pulse duration ranges from 102 to 268 fs in various intracavity dispersion regimes. In addition, signal beam power in excess of 500 mW is demonstrated, corresponding to 27% conversion efficiency from pump to signal wave.

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Karolina Stankevičiūtė, Mikas Vengris, Simas Melnikas, Simonas Kičas, Rimantas Grigonis, and Valdas Sirutkaitis "Tuning characteristics of femtosecond optical parametric oscillator with broadband chirped mirrors," Optical Engineering 54(12), 126111 (22 December 2015). https://doi.org/10.1117/1.OE.54.12.126111

Published: 22 December 2015

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