Patent ID: 6330256
Filing Date: 2001-12-11
Classification: G02F

Abstract:
An optical device for use in a laser system, said optical device comprising:(a) a heat-conducting housing;(b) at least two nonlinear optically transmissive optical elements having first and second surfaces disposed in said heat-conducting housing for propagating laser energy in a direction substantially transverse to the plane of said first and second surfaces; and(c) at least one birefringent optically transmissive window that comprises an optically transmissive heat sink, each said window comprising a birefringent crystal cut and oriented so that there is no dispersion between a plurality of laser wavelengths within said crystal and each said window disposed adjacent each said optical element such that each said optical window is sandwiched by two said optical elements, whereby heat generated in the optical elements is passively conducted to said birefringent optically transmissive windows in a direction parallel to the direction of laser energy propagation and then to said housing.