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
Printing system, information processing apparatus, print job processing method, information processing method, program, and storage medium
Method and apparatus for storing email messages
Ottoman
Vehicle battery with cell balancing current paths and method of charging the same
Indicating transfer in an IMS network
Tiered cost model for access to a computer network
Vending machine
  Randomly Featured Patents
Apparatus and method for aggregating disparate storage on consumer electronics devices
Apparatus and method of parallel processing an MPEG-4 data stream
Automatic optimization of the position of stems of text characters
Early detection of sepsis
Compressor muffler
Poly(meth) acrylimides of improved color
Electrophotographic printing apparatus
Acceleration/deceleration mechanism and vehicle small article compartment having acceleration/deceleration mechanism
Refrigerated cooler
Modular structures and panels for constructing them