Title:
WAVELENGTH SELECTIVITY OPTICAL SWITCH
Document Type and Number:
WIPO Patent Application WO/2018/054075
Kind Code:
A1
Abstract:
A wavelength selectivity optical switch, comprising a polarization splitting unit (310) and a wavelength selection unit (320). The polarization splitting unit (310) is used for splitting an input beam into a first polarized beam and a second polarized beam, and outputting the first polarized beam to an input end of a first set of microring resonators (321), and the second polarized beam to an input end of a second set of microring resonators (322); the first set of microring resonators (321) is used for coupling a first target beam in the first polarized beam to the first set of microring resonators (321) and outputting the first target beam to a polarization combining unit (323); the second set of microring resonators (322) is used for coupling a second target beam in the second polarized beam to the second set of microring resonators (322) and outputting the second target beam to the polarization combining unit (323); the polarization combining unit (323) is used for combining the first target beam and the second target beam. In this way, the number of polarization transitions of the first polarized beam is the same as that of the second polarized beam, so that polarization-related loss is reduced.
Inventors:
TU XIN (CN)
Application Number:
PCT/CN2017/084769
Publication Date:
March 29, 2018
Filing Date:
May 17, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G02B6/35
Foreign References:
| CN104297854A | 2015-01-21 | |||
| US20040247227A1 | 2004-12-09 | |||
| CN1431531A | 2003-07-23 | |||
| CN105765798A | 2016-07-13 | |||
| CN104169759A | 2014-11-26 | |||
| CN104350698A | 2015-02-11 |
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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