Method and system for managing optical subcarrier reception
US5995256A · kind A · utility
73Cited by
2References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1997 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Sep 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0293
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for high signal-to-noise ratio (SNR) optical subcarrier management and reception in a communication network. In a multiple-wavelength optical communications link, ancillary signals that are conveyed by low-level intensity-modulated subcarriers are received with increased sensitivity in the subcarrier channel of the network. An increased SNR is accomplished by passing the same ancillary signal along all the carriers and by combining the received signals at a summing amplifier in the electrical domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.