Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and apparatus to control output spectrum bandwidth of MOPO or MOPA laser










Image Number 3 for United States Patent #7894494.

An apparatus and method which may comprise a seed laser defining an optical cavity producing an output. An amplifier may amplify the seed laser output. A bandwidth error signal generator may provide a bandwidth error signal from measured bandwidth and a target. A bandwidth selection element, which may comprise an adjustable sized aperture external to the cavity of the seed laser may selectively alter the bandwidth of the seed laser output. A bandwidth control system may control the bandwidth control element and also selectively adjust a differential firing time between the seed laser and amplifier or another bandwidth selection actuator to cooperated (coarsely or finely) with the bandwidth selection element to control bandwidth of the laser system.








 
 
  Recently Added Patents
Stacked thin-film superlattice thermoelectric devices
Sub-LUN input/output profiling for SSD devices
Monitoring agent programs in a distributed computing platform
Device and process for isolating and cultivating live cells on a filter or extracting their genetic material
Automated measurement of concentration and/or amount in a biological sample
Peer-to-peer, internet protocol telephone system with proxy interface for configuration data
Author signatures for legal purposes
  Randomly Featured Patents
Method and system for source tagging an optical storage device
Shampoo cape
Weldless automotive shock absorber
Varactor or mixer diode with surrounding substrate metal contact and top surface isolation
Production of a polysuccinimide and derivatives thereof in the presence of a sulfur-containing dehydrating agent
Structure and method for a multistandard video encoder
Accelerator pedal assembly
Unified contact list
Three-dimensional image special effect apparatus
Bore-insertable apparatus for stationary measurement of bore-width changes in geological formations