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
Systems, methods, and devices for dynamic resource monitoring and allocation in a cluster system
Method and system for load balancing in networks
Method for mitigating interference in OFDM communications systems
Side mirror for a vehicle
Electrodynamic braking device for a universal motor
Systems and methods for clinician control of stimulation system
Line-based compression for digital image data
  Randomly Featured Patents
Media storing a program to extract and classify annotation data, and apparatus and method for processing annotation data
Removal of nitrous oxide from gases containing hydrogen, nitric oxide and nitrous oxide
Surface analysis test defect detector for direct access storage device
Method for connecting a wireless access point to a wired access point by chaining together wireless access points
Stencilling apparatus with flow through print and flow action
Forming a high performance Co/Pt disk
Telephone handset shoulder rest
Core cooling apparatus for an injection molding machine
Single phase stepping motor
Printing plate precursor for laser engraving, printing plate, and method for producing printing plate