Waveguide grating optical demultiplexer
US5822481A · kind A · utility
15Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 24, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Dec 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The demultiplexer has two couplers connected together by a grating of waveguides that are all of different lengths. To make a grating component of low order and that occupies little space, each waveguide has three adjacent segments having radii of curvature that are respectively positive, negative, and positive. The demultiplexer is particularly applicable to duplex optical communications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.