Resources Contact Us Home
Laser with gain medium configured to provide an integrated optical pump cavity

Image Number 2 for United States Patent #6834067.

An optically-pumped laser having a gain medium configured to provide a low loss, three-dimensional integrated optical pump cavity that substantially confines optical pump radiation within the lasing volume, which is particularly useful for efficiently pumping solid state gain media that has low pump dopant concentration. The integrated pump cavity includes a plurality of boundaries contiguous with the gain medium. An optical pump source such as a laser diode array supplies optical pump radiation that is input into the gain medium through one or more pump cavity windows with a propagation direction transverse to a laser axis defined through the gain medium. In some embodiments, an optical surface is situated opposite the window to approximately recollimate the input pump radiation. The optical pump cavity may be designed to concentrate the optical pump radiation and approximately uniformly pump the entire volume of the lasing medium. In one such embodiment, the pump cavity includes opposing converging surfaces that concentrate the optical pump radiation as it projects along the laser axis. Embodiments are disclosed in which a solid state gain medium has coatings that operate to suppress amplified spontaneous emission ("ASE"). Some embodiments also include heat sinks that directly contact the transverse boundaries and control the temperature distribution within the gain medium in a predetermined manner.

  Recently Added Patents
Method and apparatus for error correction in MBMS receipt system
Network decoys
Magnesium metal-air battery
Process for producing a plasma protein-containing medicament with reduced concentration of citrate and metals
Authentication for social networking messages
Methods for measuring media performance associated with adjacent track interference
Elegant solutions for fingerprint image enhancement
  Randomly Featured Patents
Door lock guard
Mobile track leveling, lining and tamping machine
Rapid continuous clarifier
Optimizing automated shader program construction
Method and device for obtaining a value of a referred to variable defined in a source program having a specific variable name
Single sideband quadricorrelator
Welding outlet
Sales transaction system with electronic coupon processing
Motion control evaluation employing a Fourier transform
Liquid crystal display device with counter electrodes having holes in the In-Plane Switching Mode