Transceiver for a bidirectional coherent optical transmission system
US5121241A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1989 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Aug 10, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transceiver (11) for a bidirectional coherent optical transmission system with a fiber link (12) is provided with a laser (16) for transmitting a signal carrier wave, a modulator, a heterodyne or homodyne coherent detector (13), and a demodulator. To make such a transceiver (11) more economical on components, more compact in design, and less expensive to manufacture, the laser (16) is simultaneously used to transmit oscillator radiation for the heterodyne or homodyne coherent detector (13) of the same transceiver (11) and/or to optically amplify the signal carrier wave arriving from the remote transceiver (11) over the fiber link (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.