Related Experiment Video
Updated: May 27, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Tuning and stability of a singly resonant continuous-wave optical parametric oscillator close to degeneracy
Markku Vainio1, Cécile Ozanam, Ville Ulvila
1Laboratory of Physical Chemistry, Department of Chemistry, P.O. Box 55 (A.I. Virtasen aukio 1), FIN-00014, University of Helsinki, Finland. markku.vainio@helsinki.fi
Abstract:
Wavelength tuning and stability characteristics of a singly resonant continuous-wave optical parametric oscillator (cw OPO) in the proximity of signal-idler degeneracy have been studied. The OPO is made singly resonant by using a Bragg grating as a spectral filter in the OPO cavity. The signal-idler frequency difference can be tuned from 0.5 to 7 THz, which makes the OPO suitable for cw THz generation by optical heterodyning. The operation of the OPO within this singly-resonant regime is characterized by a strong self-stabilization effect. A gradual transition to an unstable, doubly-resonant regime is observed for a signal-idler detuning smaller than ~0.5 THz.
Related Concept Videos
Oscillations In An LC Circuit
Concept of Resonance and its Characteristics
Design Example: Underdamped Parallel RLC Circuit
Starting with a fixed...
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
Parallel Resonance
Oscillations about an Equilibrium Position

