Method and apparatus for bidirectional communication over a single optical fiber
US6381045B1 · kind B1 · utility
11Cited by
16References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1998 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Jun 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2589
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Dual concentric core fiber is used for optical communication. Inbound messages lying in a first wavelength channel are received from a terminal portion of the fiber, and outbound messages lying in a second such channel are injected into the terminal portion. The optical fiber has at least one annular portion surrounding a central core portion. The inbound messages are received from the annular portion, and the outbound messages are injected into the central core portion. Alternatively, the inbound messages are received from the central core portion, and the outbound messages are injected into the annular portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.