Coherent optical receiver having optically amplified local oscillator signal
US5463461A · kind A · utility
19Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1995 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Jan 9, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/64
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The coherent optical receiver is characterized in that it comprises a local oscillator light, source, for amplifying a local oscillator light a light combining/dividing unit, a dual balanced receiver which comprises two optical detectors, and an electrical amplifier. Therefore, the coherent optical receiver has the characteristic that the length of the non-repeating section of an optical communication system including the device and employing heterodyne detection can be increased, or the dynamic range of an optical measuring system including this receiver and employing heterodyne detection can be widened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.