Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Short pulse separation laser










Image Number 8 for United States Patent #6980574.

According to the invention, a laser and a method of operating a laser which can produce multiple pulses from a single laser head is provided. A lasing medium is pumped by pumping source such as laser diodes, lamp and such. A modulator located in the cavity is turned on to induce a loss in the laser cavity sufficient to prevent lasing. A first predetermined amount of energy is stored in the lasing medium while the modulator is turned on due to a creation of a population inversion in the lasing medium in excess of the lasing threshold. The modulator is then turned off for a period of time to allow the lasing medium to provide a first pulse. The modulator is then turned on before the population inversion in the laser medium is depleted completely so that a predetermined amount of energy remains stored in the lasing medium. After the first pulse, the modulator again induces a loss in the cavity sufficient to prevent lasing. The modulator is maintained in the on position for a period of time to increase the amount of energy stored in the lasing medium. The modulator is then turned off for a third period of time to allow the lasing medium to produce a second pulse having a second controlled amount of pulse energy.








 
 
  Recently Added Patents
Hydroxylated amide skin moisturizer
Adaptive frame scanning scheme for pulsed X-ray imaging
Methods, systems and computer program products for importing data from an edge router to a network management system
Container
Head shield
Pausing multimedia data streams
Binder for secondary battery providing excellent adhesion strength and cycle property
  Randomly Featured Patents
Seal for flexible container having flexible, generally conical portions
Compensation method with control systems, namely with high delay, and corresponding compensation control system
Single package solenoid having control circuit
High density electrophoresis device and method
Trilobal filaments exhibiting high bulk and sparkle
Method of making a semiconductor device with a multi-level gate structure
Optical transmission component and production method thereof
Driveshaft assembly with retention mechanism
Signal transmitting and receiving arrangements
Method and apparatus for sensing an occupant position using capacitance sensing