Total internal reflecting laser pump cavity

Abstract

A laser device in accordance with the present invention includes a diode pump for generating pump light and a pump cavity for receiving the pump light for conversion into an output laser beam. The pump cavity is formed as a trapezoidal prism, or a prism having bases with trapezoidal perimeters, rectangular sides, a rectangular input end and a rectangular output end. The trapezoidal prism has a decreasing taper, from a maximum width at the input end to a minimum width at the output end of the trapezoidal prism. The trapezoidal prism is formed by fixing a rectangular prism that is made of doped lasing material between two triangular prism portions that are made of undoped material. To facilitate ease of manufacture, a pallet is provided, and the diode pump and trapezoidal prism can be fixed to the pallet so that the diode pump is immediately proximate the input end of the trapezoidal prism.

Dependencies are inferred from the claim text.