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
Combining seismic data from sensors to attenuate noise
Processing autocomplete suggestions
Methods and apparatus for address translation functions
Business card assembly
Satellite fleet deployment
  Randomly Featured Patents
Multi-position base assembly for tool
Fast sweep power cylinder for refuse trucks
Process for conversion of cyanopyridines to nicotinamides and catalyst therefor, process for preparing said catalyst
Apparatus and method of image processing for selective color determination
Inhibition of neonatal hyperbilirubinemia in breast fed infants
Integrated circuits having TSVs including metal gettering dielectric liners
Method and apparatus for implementing dynamic function groups in a data processing system
Composition and method for issue repair and regeneration
Method and compositions for inhibiting thrombin-induced coagulation
Electromagnetic wave generating device