Method and apparatus for adjusting for polarization-induced, optical signal transients
US7769302B1 · kind B1 · utility
3Cited by
10References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2007 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Dec 5, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/02216
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention includes methods and apparatuses to adjust an optical signal transmitted through an optical amplifier, such as in a wavelength division multiplexed optical network. The methods and apparatus of the invention calculate polarization effects which cause degradation to the optical signal. A measurement of the polarization-related degradation of an optical signal is calculated by using at least one reference signal. In some embodiments of the invention, the reference signal is depolarized or has scrambled polarizations. The invention is typically used in long-haul optical networks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.