| Patent Number |
Title Of Patent |
Date Issued |
| 7357513 |
System and method for driving semiconductor laser sources for displays |
April 15, 2008 |
| A light engine includes a multi-color laser source having a set of semiconductor lasers. A controller synchronizes the operation of the laser source to operate in a color sequential order with a spatial modulator. |
| 7322704 |
Frequency stabilized vertical extended cavity surface emitting lasers |
January 29, 2008 |
| A vertical extended cavity surface emitting laser (VECSEL) includes intra-cavity frequency doubling. Conventional frequency control elements, such as etalons, are replaced with thin film interference filters or volume Bragg gratings. |
| 7315560 |
Apparatus, system, and method for junction isolation of arrays of surface emitting lasers |
January 1, 2008 |
| An array of surface emitting laser diodes has a series electrical connection of laser diodes. Junction isolation is used to isolate laser diodes in the array. |
| 7296897 |
Projection display apparatus, system, and method |
November 20, 2007 |
| In an apparatus, system, and method for generating a projected display, a light source generates red, green, and blue light using arrays of extended cavity surface emitting semiconductor lasers. The beams of individual lasers overlap and have a distribution of optical attributes sele |
| 7189589 |
Method of fabrication of a support structure for a semiconductor device |
March 13, 2007 |
| A method of fabricating a semiconductor device is described. In this method, a starting substrate of sufficient thickness is selected that has the required defect density levels, which may result in an undesirable doping level. Then a semiconductor layer having a desired doping level is |
| 6898225 |
Coupled cavity high power semiconductor laser |
May 24, 2005 |
| An active gain region sandwiched between a 100% reflective bottom Bragg mirror and an intermediate partially reflecting Bragg mirror is formed on a lower surface of a supporting substrate, to thereby provide the first ("active") resonator cavity of a high power coupled cavity surface |
| 6775000 |
Method and apparatus for wafer-level testing of semiconductor laser |
August 10, 2004 |
| A system and method for manufacturing and wafer-level testing properties of a wafer comprises a chuck receiving a wafer to be tested and a pump light source directing an output beam toward selected locations on a wafer received on the chuck in combination with a laser light detector dete |
| 6636539 |
Method and apparatus for controlling thermal variations in an optical device |
October 21, 2003 |
| A method and apparatus are provided for reducing thermal gradients in optical devices. According to an embodiment of the invention, the size of the heat sink interface is adapted to correspond to a region of principal heat generation within the device. Doing so can make the heat generati |
| 6614827 |
High power laser |
September 2, 2003 |
| In an apparatus and method for generating high power laser radiation, the geometry of the resonant laser cavity defines a fundamental spatial or transverse cavity mode. A gain medium is disposed within the resonant cavity and an energy source energizes the gain medium within a first |
| 6448805 |
Method and apparatus for wafer-level testing of semiconductor lasers |
September 10, 2002 |
| A method and device for wafer level testing of semiconductor lasers allows probing from one side while detecting light output from the opposite side. A chuck with a transparent substrate receives the optical aperture side of a wafer of semiconductor lasers. The wafer is probed form the s |
| 6404797 |
Efficiency high power laser device |
June 11, 2002 |
| In an apparatus and method for generating high power laser radiation, the geometry of the resonant laser cavity defines a fundamental spatial or transverse cavity mode. A gain medium is disposed within the resonant cavity and an energy source energizes the gain medium within a first |
| 6243407 |
High power laser devices |
June 5, 2001 |
| In an apparatus and method for generating high power laser radiation, the geometry of the resonant laser cavity defines a fundamental spatial or transverse cavity mode. A gain medium is disposed within the resonant cavity and an energy source energizes the gain medium within a first |
