Tuning and stability of a singly resonant continuous-wave optical parametric oscillator close to degeneracy | Zendy

Markku Vainio | Zendy; C. Ozanam | Zendy; Ville Ulvila | Zendy; Lauri Halonen | Zendy

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Tuning and stability of a singly resonant continuous-wave optical parametric oscillator close to degeneracy

Author(s) -

Markku Vainio,

C. Ozanam,

Ville Ulvila,

Lauri Halonen

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.022515

Subject(s) - optical parametric oscillator , optics , physics , terahertz radiation , signal (programming language) , optical parametric amplifier , grating , wavelength , degeneracy (biology) , nonlinear optics , laser , optoelectronics , optical amplifier , bioinformatics , computer science , biology , programming language

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.

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