High sensitivity optical receiver employing a high gain amplifier and an equalizing circuit
US8139957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Oct 17, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F1/48
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An optical receiver includes a light receiving element for converting an optical signal to an electrical signal having a first bandwidth and an amplifier for amplifying the electrical signal. The amplifier has a first gain response that yields a second bandwidth that is less than the first bandwidth. The optical receiver also includes an equalizing circuit operationally coupled to the amplifier. The equalizing circuit has a second gain response that compensates for the first gain response of the amplifier so that a substantially constant net gain is imparted by the amplifier and the equalizing circuit to the electrical signal over the first bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.