Phase-diverse coherent optical spectrum analyzer
US7068374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2003 |
| Grant date | Jun 27, 2006 |
| Priority date | — |
| Expiry date | Jul 4, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J9/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A phase-diverse coherent optical spectrum analyzer is presented. An optical receiver receives a first input signal and a second input signal, and produces at least a first output signal, a second output signal, and a third output signal based on mixing the first input signal and the second input signal. A processing unit isolates heterodyne components from the first output signal, the second output signal and the third output signal, wherein the heterodyne components comprise a first signal and a second signal that represent the phase-diverse nature of the optical mixing process. Phase diversity of the heterodyning between the first input signal and the second input signal is achieved by the coherent optical spectrum analyzer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.