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
System and method for configuring software applications in a motor vehicle
Method to trace video content processed by a decoder
Color stable manganese-doped phosphors
Coupling device having piercing member
Method of sending CTI messages in a communication system
Method of purifying crude acetone stream
Information processing using batch setting information
  Randomly Featured Patents
Molding tool for molding with cylindrical core
Shoe upper
Timepiece device
Transmission line voltage controlled nonlinear signal processors
Brush coupled to hairdye ejecting apparatus
Method of making activated carbon
Face authentication system and authentication method thereof
Compact outer jacket for low wattage discharge lamp
Data processing system having instruction responsive apparatus for both a basic and an extended instruction set
Semiconductor device and method of fabricating the same