Multi-pass optical parametric generator

Details Multi-pass optical parametric generator Multi-pass optical parametric generator

1996-02-08

1998-05-12

Lee, John D.

Optical: systems and elements

Optical frequency converter

Parametric oscillator

359326, G02F 139

Patent

active

057514720

ABSTRACT:
A parametric generator for efficiently converting short duration pump pulses of a first frequency to a signal beam of a desired frequency is described. The parametric generator includes a second order nonlinear parametric medium, a retro-reflector, and an optical re-imaging system. Each optical sub-path through the parametric medium is substantially distinct and non-overlapping. At least two optical sub-paths have a direction within a phase matching acceptance angle of the parametric material which corresponds to the desired wavelength. The parametric generator can be configured to be compact because it utilizes multiple transmissions through the parametric medium and it employs only a single pump beam input.

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