Nghia A Kha

8068745, Nov 29, 2011

Jul 28, 2008

12/180966

Todd Edward Olson - San Marino CA, US
Nghia Kha - Diamond Bar CA, US
Hy Thai - San Gabriel CA, US
Todd Kellison - Pearisburg VA, US
Frank Berardi - Arcadia CA, US

Emcore Corporation - Albuquerque NM

H04B 10/04

398193, 398194, 398195, 398196, 398197, 398135, 398136, 398137, 398 38, 372 32, 372 34, 372 36, 372 3802

A circuit controlling the gain of an amplifier in an optical transmitter used for optical communication, including a detection circuit for measuring the power of the RF input to a laser; a gain controller or controlling a gain of an amplifier, and a switch connected to the gain controller, wherein the gain controller is adapted, in response to an activation of a switch, to: (i) automatically vary gain of the amplifier, and (ii) set the gain of the amplifier at a level corresponding to a reduction in the noise and/or distortion associated with the transmitter.

8189645, May 29, 2012

Dec 14, 2009

12/637665

Rongsheng Miao - El Monte CA, US
Nghia Kha - Diamond Bar CA, US
Todd Edward Olson - San Marino CA, US
Genzao Zhang - Ottawa, CA
Bryon L. Kasper - Sierra Madre CA, US

Emcore Corporation - Albuquerque NM

H01S 3/08

372108, 372101

An adapted semiconductor laser package that may convert a first type of package pin-out arrangement to a desired pin-out arrangement. The laser package may include a laser package including a laser, an isolator, a lens, a fiber sleeve, and a pin-out arrangement. The isolator and the fiber sleeve may be jointly arranged away from the laser. The laser package may also include an adapter with a first section with a plurality of holes geometrically arranged and mated with the package pin-out arrangement, a second section with an adapter pin-out arrangement with two rows of pins extending along opposite sides of the package, and electrical connections between the plurality of holes and the pins.

20040005115, Jan 8, 2004

Jul 2, 2002

10/187824

Xin Luo - Monterey Park CA, US
Nghia Kha - Baldwin Park CA, US

G02B006/293
G02B006/26

385/024000, 385/047000

An optoelectronic add/drop multiplexer is disclosed having an optically transmissive block optically coupled to an incoming WDM signal having a two or more incoming optical signals. The add/drop multiplexer further includes one or more drop bandpass filters adapted to remove one or more incoming optical signals from a multi-channel signal flow in a first direction within the optically transmissive block and one or more add bandpass filters adapted to add one or more output optical signals to the multi-channel signal flow in a second direction within the optically transmissive block.

20040258369, Dec 23, 2004

Jun 19, 2003

10/465300

Xin Luo - Monterey Park CA, US
Bryon Kasper - San Marino CA, US
Nghia Kha - Baldwin Park CA, US
Xiaoming Lou - Alhambra CA, US

G02B006/36

385/093000

An optical interface between an optical fiber and a photodiode is provided. The optical fiber has an end. The optical interface includes a lens located such that a chief ray of an optical signal outputted at said end traverses a center of the lens. The lens may be a ball lens or a lens having an orientation such that the chief ray is incident substantially normal to a center of the lens.

20070155197, Jul 5, 2007

Jan 5, 2006

11/325396

Rongsheng Miao - El Monte CA, US
Nghia (Leo) Kha - Diamond Bar CA, US
Todd Olson - San Marino CA, US

H05K 1/00

439067000

The present invention discloses an adaptor suitable for use in optoelectronic circuit board. The adaptor according the present invention serves to adapt a package pin-out arrangement to a desired pin-out arrangement on a printed circuit board. The adaptor comprises a pin-in arrangement that electrically couples with the package pin-out arrangement. The adaptor further comprises an adaptor pin-out arrangement that is geometrically identical to the desired pin-out, and a flex-circuit that provides a plurality of electrical paths to connect the pin-in arrangement with the adaptor pin-out arrangement. In various embodiments, the adaptor further comprises a clamshell for holding the adaptor pin-out and the flex-circuit together in a single flat format.