18 November 2008 Intracavity synchronously pumped PPLN picosecond optical parametric oscillator
Author Affiliations +
Proceedings Volume 7138, Photonics, Devices, and Systems IV; 71381R (2008) https://doi.org/10.1117/12.818056
Event: Photonics, Devices, and Systems IV, 2008, Prague, Czech Republic
Abstract
The goal of our work is the development of intracavity synchronously pumped optical parametrical oscillator (OPO), generating two trains of picosecond pulses inside a single cavity. These trains have the same repetition rate but they are independent and can differ in phase and carrier frequency. They can interfere on a detector, producing a beat note at the carrier frequency difference. This allows to determine very precisely the phase difference between them which is possible to use in all sensor applications where the measured physical quantity is converted into phase difference between two counter-circulating pulses. We designed a synchronously pumped OPO with nonlinear crystal (MgO:PPLN) for parametric generation inserted inside a linear resonator of a modelocked diode pumped Nd:YVO4 laser. This configuration ensures the same way for signal and pumping waves through the crystal and reduces the dead-band of the beat signal. We observed that the OPO could generate in three regimes: the desired dual pulse operation when the pump pulse produces parametric waves during both forward and return passes through PPLN crystal. Two single pulse OPO operations are possible when parametric interaction occurred only during one pass of the pump pulse through the PPLN crystal in forward or backward direction.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alena Zavadilová, Václav Kubecek, Petr Hirsl, Miroslav Cech, Jean-Claude M. Diels, "Intracavity synchronously pumped PPLN picosecond optical parametric oscillator", Proc. SPIE 7138, Photonics, Devices, and Systems IV, 71381R (18 November 2008); doi: 10.1117/12.818056; https://doi.org/10.1117/12.818056
PROCEEDINGS
6 PAGES


SHARE
Back to Top