Lucy Grace Hosking

6912361, Jun 28, 2005

Oct 8, 2002

10/266870

Lewis B. Aronson - Los Altos CA, US
Lucy G. Hosking - Santa Cruz CA, US
Greta L. Light - San Mateo CA, US
Darin James Douma - Monrovia CA, US
Mark J. Farley - Napa CA, US

Finisar Corporation - Sunnyvale CA

H04V010/00

398135, 398137

The optical transceiver module includes an optical transmitter and an optical receiver. The optical transceiver module also includes an internal serial bus and a plurality of addressable components electrically coupled to the internal serial bus. Each of the addressable components included a serial interface for communicating with the internal serial bus, and a memory. Each addressable component also includes a unique address or chip select logic coupled to a controller via a chip select line. This allows data to be addressed to specific addressable components. The addressable components may include a laser driver, a laser bias controller, a power controller, a pre-amplifier, a post-amplifier, a laser wavelength controller, a main controller, a electrothermal cooler, an analog-to-digital converter, a digital-to analog converter, an APD bias controller, or any combination of the aforementioned components.

6952531, Oct 4, 2005

Nov 13, 2003

10/713752

Lewis B. Aronson - Los Altos CA, US
Lucy G. Hosking - Santa Cruz CA, US

Finistar Corporation - Sunnyvale CA

H04B010/00

398137, 398135

A single-chip integrated circuit, sometimes called a controller, controls operation of a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory. Comparison logic compares one or more of these digital values with predetermined setpoints, generates flag values based on the comparisons, and stores the flag values in predefined locations within the memory. Control circuitry in the controller shuts off the laser transmitter in response to comparisons of signals with predetermined setpoints that indicate potential eye safety hazards.

7035300, Apr 25, 2006

Nov 4, 2003

10/700845

James Stewart - San Jose CA, US
Lucy G. Hosking - Santa Cruz CA, US
Anthony Ho - Richmond CA, US
Andreas Weber - Los Altos CA, US

Finisar Corporation - Sunnyvale CA

H01S 3/04

372 34, 372 36

A method for calibrating a multi-channel laser emitter in an optoelectronic transceiver or an optoelectronic transmitter for a first wavelength includes monitoring the wavelength of optical signals from the laser emitter while varying its temperature as well as other operating conditions, and then storing calibration information in the memory of a microprocessor. The initial values of the calibrating procedure are reset and the calibrating procedure is repeated to obtain calibration information for a next desired wavelength.

7039082, May 2, 2006

Dec 2, 2003

10/725871

James Stewart - Burlingame CA, US
Lucy G. Hosking - Santa Cruz CA, US
Anthony Ho - Sunnyvale CA, US
Andreas Weber - Los Altos CA, US

Finisar Corporation - Sunnyvale CA

H01S 3/04

372 34, 372 36

A method for calibrating a multi-channel laser emitter in an optoelectronic transceiver or an optoelectronic transmitter for a first wavelength includes monitoring the wavelength of optical signals from the laser emitter while varying its temperature as well as other operating conditions, and then storing calibration information in the memory of a microprocessor. The initial values of the calibrating procedure are reset and the calibrating procedure is repeated to obtain calibration information for a next desired wavelength.

7050720, May 23, 2006

Jun 18, 2004

10/871274

Lewis B. Aronson - Los Altos CA, US
Lucy G. Hosking - Santa Cruz CA, US

Finisar Corporation - Sunnyvale CA

H04B 10/00

398137, 398 22

A controller for controlling a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory. Comparison logic compares one or more of these digital values with limit values, generates flag values based on the comparisons, and stores the flag values in predefined locations within the memory. Control circuitry in the controller controls the operation of the laser transmitter in accordance with one or more values stored in the memory. A serial interface is provided to enable a host device to read from and write to locations within the memory. Excluding a small number of binary input and output signals, all control and monitoring functions of the transceiver are mapped to unique memory mapped locations within the controller.

7058099, Jun 6, 2006

Nov 4, 2003

10/700981

James Stewart - San Jose CA, US
Lucy G. Hosking - Santa Cruz CA, US
Anthony Ho - Richmond CA, US
Andreas Weber - Los Altos CA, US

Finisar Corporation - Sunnyvale CA

H01S 3/13
H01S 3/98

372 32, 372 18

A method for compensating for wavelength drift in a fiber-optic laser transmitter includes 1) controlling a temperature within the optoelectronic assembly at a defined level; 2) driving the optoelectronic assembly to emit light, wherein the emitted light has a wavelength that is within a channel of operation, the channel of operation including a range of wavelengths centered around a channel center wavelength; 3) accessing from memory within the optoelectronic assembly a control value associated with the temperature of the optoelectronic assembly at defined points within an operational lifetime of the optoelectronic assembly; and 4) recalculating the defined level by reference to the control value, whereby a wavelength of the optoelectronic assembly is maintained within the channel of operation despite an expected drift of wavelength.

7058310, Jun 6, 2006

Oct 8, 2002

10/266869

Lewis B. Aronson - Los Altos CA, US
Lucy G. Hosking - Santa Cruz CA, US

Finisar Corporation - Sunnyvale CA

H04B 10/00

398137, 398139

A single-chip integrated circuit, sometimes called a controller, controls operation of a transceiver having a laser transmitter and a photodiode receiver. The controller includes memory for storing information related to the transceiver, and analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory. Comparison logic compares one or more of these digital values with predetermined setpoints, generates flag values based on the comparisons, and stores the flag values in predefined locations within the memory. Control circuitry in the controller shuts off the laser transmitter in response to comparisons of signals with predetermined setpoints that indicate potential eye safety hazards.

7149430, Dec 12, 2006

Jul 8, 2003

10/616362

Lucy G. Hosking - Santa Cruz CA, US
James Stewart - San Jose CA, US
Anthony Ho - Sunnyvale CA, US

Finsiar Corporation - Sunnyvale CA

H04B 10/00

398137, 398195

The optoelectronic transceiver includes first and second controller ICs. Each controller IC includes logic, a memory, an interface, and at least one input port. Each memory is configured to store digital diagnostic data and has a unique serial device address to allow a host access to each of these controller ICs separately and independently. At least some of the digital diagnostic data is common to both the first controller IC and the second controller IC. The inclusion of two controller ICs allows the same diagnostic data to be stored in completely different memory mapped locations. This allows hosts that are preconfigured differently to read different memory mapped locations on the different controller ICs to obtain the same diagnostic data.