Wavelength demultiplexer
US6542670B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2000 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Aug 7, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12195
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A wavelength demultiplexer is provided whose overall length in a first propagation direction is short, whose production efficiency is high, and whose emission loss is smaller than that of conventional configurations. At the first end face V1, the first boundary line F1 is closer to the second edge H2 than the first edge H1 by the distance “b” (b>0). At the first end face V1, the second boundary line F2 is closer to the first edge H1 than the second edge H2 by the distance “b”. At the third end face V3, the fourth boundary line F4 is closer to the fourth edge H4 than the third edge H3 by the distance “a” (a>0). At the fourth end face V4, the sixth boundary line F6 is closer to the third edge H3 than the fourth edge H4 by the distance “a”.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.