Method and system for wavelength division multiplexer
US5933260A · kind A · utility
6Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Apr 25, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0307
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system and method for separating a component signal having a predetermined wavelength from a signal carried over a range of wavelengths is disclosed. The system comprises a first filter for transmitting light of the predetermined wavelength. The component signal is reflected rather than transmitted. The system further comprises a second filter for transmitting light of a second predetermined wavelength. The second filter is in the transmission direction from the first filter. Thus, the component signal is separated by transmission by the first filter and reflection from the second filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.