Inline modulator device for an optical transmission system
US5861971A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1996 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Oct 1, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0075
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An inline modulator device for an optical transmission system, the device comprising: detector means suitable for detecting a portion of the signal transmitted on the line; modulator means; and a control circuit adjustable for synchronization, serving to extract the clock from the signal coming from the detector means and, on the basis of said clock, generating a modulation control signal which it applies to the modulator means, wherein the detector means and the modulator means are constituted respectively by the inlet section and the outlet section of an electro-absorbent modulator constituted by a two-section integrated component, such that said detector means and modulator means can be placed in the line in the form of a single insertion. The present invention also provides optical telecommunications systems using such an inline modulator device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.