SELECTOR OF LASER LINE OF BROAD BAND TUNABLE LASERS Russian patent published in 1994 - IPC

FIELD: quantum electronics. SUBSTANCE: selector has a plane-parallel of crystalline quartz disposed on the resonator axis at a Brewster angle and rotatable relative to the normal to the surface. The selector is characterized in that angle β between the direction on the plate optic axis and its surface within the range of 45-50 degrees provides an increased thickness of plate according to expression h:r=λ{[n²-sin²(arctg n₀)]^1/2- [n²-sin²(arctg n₀)]^1/2}^-1 given in invention description, where λ is radiation wave length in the center of tuning range, n and n₀ refraction indices for extraordinary and ordinary waves to the thickness of 1 mm. EFFECT: simplified manufacture, improved optic quality, enhanced stabilization of laser modes with maximum laser line width. 3 dwg