Expandable wavelength division multiplexer based on interferometric devices
US6160932A · kind A · utility
17Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1999 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Feb 16, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29398
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wavelength division multiplexer (WDM) utilizes cascaded interferometric devices, where the two output branches of interferometric devices in each new stage are each coupled to an additional stage of interferometric devices having the same wavelength separation or channel spacing, which suppresses the sidelobes of the signals from preceding stage of interferometric devices. In one embodiment, the interferometric devices are unbalanced Mach-Zehnder Interferometers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.