Free-space/arrayed-waveguide router
US6263127A · kind A · utility
77Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | May 13, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0032
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A router combines free-space and guided wave optics to drastically increase the number of channels used in WDM transmission systems. The two-stage router uses the partial demultiplexing characteristic of an arrayed waveguide router (AWR) combined with a free-space optical router to fully demultiplex an input WDM signal. The two-stage router can be used to obtain output wavelength signals in either one- or two-dimensional arrays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.