Apparatus for externally modulating two optical channels at the same time
US6330098A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Oct 6, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/2255
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A Mach-Zehnder interferometer-type modulator for externally modulating two independent optical signals with first and second electrical signals, the modulator includes a first electrode receiving the first electrical signal, a second electrode receiving the second electrical signal, a first optical signal path co-propagating the first optical signal with the first electrical signal and counter-propagating the first optical signal with the second electrical signal, to generate a first modulated optical signal corresponding to the first optical signal modulated with the first electrical signal, and a second optical signal path co-propagating the second optical signal with the second electrical signal and counter-propagating the second optical signal with the second electrical signal, to generate a second modulated optical signal corresponding to the second optical signal modulated with the second electrical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.