Resources Contact Us Home
Tunable laser with stabilized grating

Image Number 11 for United States Patent #7075963.

A line-narrowing module for a laser includes a prism beam expander and a grating preferably attached to a heat sink. A pressure-controlled enclosure filled with an inert gas seals the grating and/or other elements of the line-narrowing module. The pressure in the enclosure is adjusted for tuning the wavelength. Preferably, the pressure is controlled by controlling the flow of an inert gas through the enclosure. A pump may be used, or an overpressure flow may be used. Alternatively, a prism of the beam expander or an etalon may be rotatable for tuning the wavelength.

  Recently Added Patents
Collaborative system for capture and reuse of software application knowledge and a method of realizing same
System and apparatus for control of published content
Active tags
Method of modified facies proportions upon history matching of a geological model
Triple-trim reference voltage generator
Factor IXa crystals, related complexes and methods
Polarity switching member of dot inversion system
  Randomly Featured Patents
Electronic brake controller with selectable display
Transgenic animal having a disrupted PDE7A gene and uses thereof
Wrist wrap
In-ear earphone
Linear energy curtain
Soybean designated AX7017-1-3
Crosslinkable waterborne dispersions of hydroxy functional polydiene polymers and amino resins
Methods of forming a layer of silicon nitride in semiconductor fabrication processes
Dynamically modulating link width
Process for joining different kinds of synthetic resins