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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Negus; Daniel K.
Address:
La Honda, CA
No. of patents:
12
Patents:












Patent Number Title Of Patent Date Issued
5504763 System for minimizing the depolarization of a laser beam due to thermally induced birefringence April 2, 1996
A system is disclosed for minimizing the depolarization of a laser beam due to thermally induced birefringence in a rod-shaped gain medium over a wide range of excitation levels. After passing through the gain medium, the polarization of the beam is rotated by ninety degrees and either
5455837 Flashlamp energy control circuit October 3, 1995
A circuit is disclosed for controlling the output of a flashlamp used to excite a gain medium. The circuit functions to supply energy to the flashlamp for fixed time intervals to generate repetitive pulses having a uniform duration. The circuit includes a photodetector for generating an
5173908 System for automatically adjusting the GVD of a Gires-Tournois interferometer December 22, 1992
A system is described for automatically maintaining the group velocity dispersion (GVD) of a Gires-Tournois interferometer (GTI) as the wavelength of incident light is varied. In the system, the transmission through the GTI is monitored by a photodiode as the wavelength is varied. Th
5164946 Birefringent filter for use in a tunable pulsed laser cavity November 17, 1992
A birefringent filter ("BRF") unit, for use in the cavity of a tunable pulsed laser generating ultrashort pulses, including means for suppressing satellite pulses resulting from surface reflections. In one preferred embodiment, the inventive BRF has substantially parallel front and back
5163059 Mode-locked laser using non-linear self-focusing element November 10, 1992
A passively mode-locked laser (110) is disclosed that includes a resonant cavity (112, 114) having a gain medium (116) therein. A transmissive element (116), which may be the gain medium, is also located in the cavity and is formed from a material which varies the two-dimensional, latera
5121405 Alignment control system for lasers June 9, 1992
Control systems for stabilizing the position of a beam from a laser are disclosed. In one aspect, lateral alignment deviations created by varying thermal effects in a solid state gain medium are compensated. A system is also disclosed which can isolate and the correct both lateral and an
5097471 Mode-locked laser using non-linear self-focusing element March 17, 1992
A passively mode-locked laser (110) is disclosed that includes a resonant cavity (112, 114) having a gain medium (116) therein. A transmissive element (116), which may be the gain medium, is also located in the cavity and is formed from a material which varies the two-dimensional, latera
5079772 Mode-locked laser using non-linear self-focusing element January 7, 1992
A passively mode-locked laser (110) is disclosed that includes a resonant cavity (112, 114) having a gain medium (116) therein. A transmissive element (116), which may be the gain medium, is also located in the cavity and is formed from a material which varies the two-dimensional, latera
5046070 Longitudinally laser pumped laser with compensation for thermal lens effects September 3, 1991
A laser system is disclosed wherein a solid state gain medium (30) is longitudinally pumped with the beam (40) from another laser (42). The laser is configured with an optically stable resonator while at the same time matching the shape of the pump beam to the shape of the cavity beam
5038360 Birefringent filter for use in a tunable pulsed laser cavity August 6, 1991
A birefringent filter ("BRF") unit, for use in the cavity of a tunable pulsed laser generating ultrashort pulses, including means for suppressing satellite pulses resulting from surface reflections. In one preferred embodiment, the inventive BRF has substantially parallel front and back
4999840 Stabilized synchronously pumped dye laser March 12, 1991
A length stabilized, dispersion compensated synchronously pumped mode locked dye laser is disclosed. The output of the dye laser is actively stabilized by monitoring the output power thereof and generating an error signal for actively adjusting the cavity length. The operation is enhance
4998254 Stabilized synchronously pumped dye laser March 5, 1991
A length stabilized, dispersion compensated synchronously pumped mode locked dye laser is disclosed. The output of the dye laser is actively stabilized by monitoring the output power thereof and generating an error signal for actively adjusting the cavity length. The operation is enhance










 
 
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