Method to control temperature of LD
US8611761B2 · kind B2 · utility
1Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2011 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Aug 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/572
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
New method to control the optical transmitter is disclosed. The optical transmitter provides both of the ATC feedback loop and the APC feedback loop. When a failure occurs in the ATC feedback loop and the temperature sensor is unable to output an adequate signal any longer, the optical transmitter cuts the APC loop and operates the LD in constant conditions. The output of the monitor PD is transferred to the ATC loop to control the TEC based on the optical output of the LD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.