Apparatus for shaping binary optical signals, and use thereof to modify said signals
US5781326A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1997 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Jun 13, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/215
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To shape binary optical signals, the apparatus comprises a first stage for providing a modulating signal whose high levels are stabilized so as to depend little on fluctuations in the input signal. The signal is applied to a second stage including an interferometer structure designed to deliver an output signal that is the result of interference between first and second auxiliary waves, the interference being respectively constructive and destructive when the power of the modulating signal corresponds respectively to a first logic state and to a second logic state. The apparatus can be used to modify the input signal by deleting or inserting data. It can be used in optical data switching or transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.