Title:
FILTER BLOCK FOR AN N-CHANNEL MULTIPLEXING/DEMULTIPLEXING DEVICE AND OPTICAL WAVELENGTH DIVISION/DEMULTIPLEXING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/001444
Kind Code:
A1
Abstract:
The present invention provides a filter block 300, 800, 1000 for an optical N-channels multiplexing/demultiplexing device 600 for receiving or emitting light, wherein the filter block 300, 800 comprises: a plurality of reflecting surfaces 301, 801-804, 1201-1206 and a plurality of N filters 302, 805-808, 1207-1212, wherein the plurality of reflecting surfaces 301, 801-804, 1201-1206 and the N filters 302, 805-808, 1207-1212 are arranged such that a light beam can be reflected between the plurality of reflecting surfaces 301, 801-804, 1201-1206 and the N filters 302, 805-808, 1207-1212, and each of said N filters 302, 805-808, 1207-1212 is transparent to a defined wavelength, wherein at least two reflecting surfaces 301, 801-804, 1201-1206 are arranged in a different plane and at least two filters 302, 805-808, 1207-1212 are arranged in a different plane. Moreover, the present invention further provides an optical wavelength division multiplexing/demultiplexing device 600, comprising such a filter block.
Inventors:
ZAGO PAOLO (DE)
RAMPULLA ALBERTO (DE)
RAMPULLA ALBERTO (DE)
Application Number:
PCT/CN2018/092977
Publication Date:
January 03, 2019
Filing Date:
June 27, 2018
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04J14/02
Foreign References:
| US20160187585A1 | 2016-06-30 | |||
| US9590759B1 | 2017-03-07 | |||
| US7212343B1 | 2007-05-01 | |||
| CN202649522U | 2013-01-02 |
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