VINCENT WONG, P.T.
Physical Therapy at International Cir, San Jose, CA

2002006, May 30, 2002

Sep 13, 2001

09/951895

Bardia Pezeshki - Redwood City CA, US
Vincent Wong - San Jose CA, US

H01S003/03

372/064000

A semiconductor laser with single longitudinal mode includes active region(s) and phase shift region(s). An optical cavity such as a passive waveguide extends through the active region(s) and the phase shift region(s). A diffraction grating in the active region(s) has a refractive index. An active layer in the active regions is located between the diffraction grating and the passive waveguide. The phase shift region(s) have a refractive index difference n with respect to the index of the active region(s). The phase shift region(s) are located adjacent to and/or between the active region(s). An optical mode is shifted in the phase shift region. An eletro-optical circuit tunes a lasing wavelength of the laser by varying n. The electro-optical circuit reverse or forward biases a tuning junction to change the refractive index difference n using field effects or carrier effects.

7167490, Jan 23, 2007

Mar 8, 2004

10/795925

David G. Mehuys - Sunnyvale CA, US
Richard R. Craig - Palo Alto CA, US
Jay A. Skidmore - San Jose CA, US
Vincent V. Wong - San Jose CA, US

JDS Uniphase Corporation - Milpitas CA

H01S 3/10

372 23, 372102, 372 96

An optical fiber laser has an output that is stabilized to adapt to changes in laser operating temperature. At the output of the laser a plurality of wavelength-selective stabilizing reflectors is provided, each having a reflectivity profile with a different center wavelength. The reflectors, typically Bragg gratings, have a relative degree of reflectivity and relative wavelength separation that results in the output power of the laser being at one or more of the reflector center wavelengths throughout the temperature change. Thus, as a temperature shift causes the wavelength of the optical energy generated in the laser gain medium to change, the grating-stabilized output of the laser shifts between one locked wavelength and another. However, the output remains stable over the extended wavelength range provided by the multiple reflectors. Such a laser is particularly useful in an amplifier system in which the laser is used as an optical pump source.

2004012, Jun 24, 2004

Dec 10, 2003

10/732777

Gottfried Dohle - San Jose CA, US
Vincent Wong - San Jose CA, US

JDS Uniphase Corporation - San Jose CA

H01S003/04

372/036000

An improved electrical contact structure can be manufactured by plating a component of a first material such as molybdenum with a second material such as copper or silver. The first and second materials are selected to provide a desired effective coefficient of thermal expansion (CTE) and electrical conductivity. The contact structure can be made very thin for implementations in which multiple lasers are to be stacked closely together. The manufacturing processing can be carried out very inexpensively by first etching the outline of multiple components in a sheet of the first material and then plating the etched sheet with the second material.

7212554, May 1, 2007

Sep 29, 2004

10/953798

Erik Paul Zucker - Los Altos CA, US
Edmund L. Wolak - Palo Alto CA, US
Vincent V. Wong - San Jose CA, US
Chris Hart - West Melbourne FL, US
Jay A. Skidmore - San Jose CA, US
Randolph W. Hines - Melbourne FL, US

JDS Uniphase Corporation - Milpitas CA

H01S 3/13

372 2902, 372102, 372 99

A high power light source having an array, bundle or separate plurality of laser diodes coupled to a same number of multimode waveguides to collect beams of light emitted from the of laser diodes is provided. An optical combiner receives the beams of light and combines the beams of light into a single forward propagating beam of light so that substantially all optical radiation within each beam of light overlaps the optical radiation each other beam to form the single beam. A reflective element is located to receive the single forward propagating beam of light and transmits greater than 60% of the single forward propagating beam of light therethrough. The reflective element reflects between 3–40% of the single forward propagating beam back to the laser diodes as feedback to stabilize said laser diodes.

2003016, Aug 28, 2003

Dec 20, 2002

10/326197

Edmund Wolak - Palo Alto CA, US
Nina Morozova - San Jose CA, US
Jay Skidmore - San Jose CA, US
Ning Fan - Victoria, CA
Jo Major - Cupertino CA, US
Robert Lang - Alamo CA, US
Garnet Luick - Victoria, CA
Donald Hargreaves - San Jose CA, US
Vincent Wong - San Jose CA, US
Richard Duesterberg - Mountain View CA, US

JDS Uniphase Corporation - San Jose CA

H01S005/00, H01S003/08

372/108000, 372/043000

The invention provides a laser package having a single-mode laser diode for emitting light; a single-mode optical fiber comprising an uncoated microlens formed on an input end of said single-mode optical fiber, the microlens optically coupled to the laser diode for receiving the light, the microlens being constructed so as to reduce a level of back reflection into the laser diode so as not to disturb an operation of the laser diode, wherein a center axis of the single-mode optical fiber is co-planar with an optical axis of the laser diode; and a grating formed in the single-mode optical fiber for providing feedback to the laser diode to stabilize the emitted light from the laser diode. The single-mode optical fiber can include a length of polarization maintaining fiber between the grating and the single-mode laser diode.