Control circuit for optoelectronic module with integrated temperature control
US7269191B2 · kind B2 · utility
15Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2002 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | May 30, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0617
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A microprocessor is used to control the temperature of a laser emitter and thereby regulate the wavelength of optical signals from the laser. A serial interface in the microprocessor provides input and output lines to a host device, and temperature lookup tables are stored in nonvolatile memory. Control logic processes information stored in the memory as well as information on operating conditions of the laser emitter to precisely control the temperature of the laser emitter. A thermo-electric cooler adjusts the temperature of the laser emitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.