Directly modulated laser optical transmission system
US7466925B2 · kind B2 · utility
106Cited by
43References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Jan 9, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2537
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical transmitter for generating a modulated optical signal for transmission over dispersive fiber optic links in which a broadband analog radio frequency signal input is applied to a modulation circuit for directly modulating a semiconductor laser with the analog signal input. The transmitter may further include a temperature sensor in proximity to the laser and a negative feedback control circuit coupled to the temperature sensor for adjusting the temperature of the laser in response to an output characteristic of the laser, such as linearity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.