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Optical Engineering

Tuning characteristics of femtosecond optical parametric oscillator with broadband chirped mirrors
Author(s): Karolina Stankevičiūtė; Mikas Vengris; Simas Melnikas; Simonas Kičas; Rimantas Grigonis; Valdas Sirutkaitis
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Paper 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.

Paper Details

Date Published: 22 December 2015
PDF: 8 pages
Opt. Eng. 54(12) 126111 doi: 10.1117/1.OE.54.12.126111
Published in: Optical Engineering Volume 54, Issue 12
Show Author Affiliations
Karolina Stankevičiūtė, Vilnius Univ. (Lithuania)
Mikas Vengris, Vilnius Univ. (Lithuania)
Simas Melnikas, Ctr. for Physical Sciences and Technology (Lithuania)
Simonas Kičas, Ctr. for Physical Sciences and Technology (Lithuania)
Rimantas Grigonis, Vilnius Univ. (Lithuania)
Valdas Sirutkaitis, Vilnius Univ. (Lithuania)

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