Optical interleaver and de-interleaver
US6574049B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2002 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | May 14, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29358
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical interleavers and de-interleavers that can be used to combine and separate optical signals are described. These devices are based on Mach-Zehnder interferometers having one or two Gires-Toumois mirrors. The optical designs disclosed herein include several key improvements over prior arts. These improvements of interleavers enabled lower cross talk and more accurate channel center frequencies. The new designs also improve on the stability of the devices and substantially reduce the manufacturing costs. With the usage of multi-fiber collimators, a pair of interleaver and de-interleaver is fabricated using the same optical block thereby further reducing the manufacturing costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.