Wavelength-doubling optical parametric oscillator

DWPI Title: Wavelength-doubling optical parametric oscillator device, has nonlinear optical medium oriented on optical path in optical cavity, and set of mirrors rotating polarization of one of degenerate waves by ninety degrees
Abstract: A wavelength-doubling optical parametric oscillator (OPO) comprising a type II nonlinear optical medium for generating a pair of degenerate waves at twice a pump wavelength and a plurality of mirrors for rotating the polarization of one wave by 90 degrees to produce a wavelength-doubled beam with an increased output energy by coupling both of the degenerate waves out of the OPO cavity through the same output coupler following polarization rotation of one of the degenerate waves.
Use: Used for producing wavelength doubled light.
Advantage: The mirrors are provided to rotate the polarization of one of the degenerate waves by 90 degrees, thus enabling production of a wavelength-doubled beam with an increased output energy. The design configuration of the oscillator increases conversion efficiency and enables the occurrence of the oscillation on a single longitudinal mode.
Novelty: The device has a nonlinear optical medium oriented on an optical path in an optical cavity (100), where the optical medium generates two degenerate waves by using a pump beam. A set of mirrors (20-26) rotates the polarization of one of the waves by 90 degrees. A single-frequency pump laser (10) and a low-finesse etalon are placed in a cavity to provide a single-frequency seed pulse. A seeder optical parametric oscillator provides an injection seeding pulse. The nonlinear optical medium is positioned between an input coupler mirror and an output coupler mirror.
Filed: 5/3/2006
Application Number: US2006416822A
Tech ID: SD 10025.0
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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