Polarization-mixing optical parametric oscillator.
We report the experimental realization of a new type of optical parametric oscillator in which oscillation is achieved by polarization rotation in a linear retarder, followed by nonlinear polarization mixing. The mixing is performed by a type II degenerate parametric downconversion in a periodically poled KTP crystal pumped by a 1064 nm pulsed Nd:YAG pump. A single, linearly polarized beam, precisely at the degenerate wavelength is generated. The output spectrum has a narrow linewidth (below the instrumentation bandwidth of 1 nm) and is highly stable with respect to variations in the crystal temperature.
Kalmani
Gal
G
Department of Physical Electronics, Tel-Aviv University, Tel-Aviv 69978, Israel.
Arie
Ady
A
Blau
Pinhas
P
Pearl
Shaul
S
Smith
Arlee V
AV