Optical data link dual wavelength coupler
US4904043A · kind A · utility
27Cited by
14References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Jun 15, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4246
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A dual wavelength optical coupler is disclosed which provides either bidirectional or unidirectional communication at different wavelengths over a single fiber. The coupler utilizes a dichroic filter and a set of three lenses to achieve dual wavelength communication. Additional blocking filters may be incorporated to decrease the degree of optical crosstalk present in the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.