Title:
光受信モジュール
Document Type and Number:
Japanese Patent JP7094683
Kind Code:
B2
Abstract:
A wavelength de-multiplexing system that receives a wavelength multiplexed signal and generates electrical signals corresponding to the optical signals is disclosed. The optical receiver module includes a lens, a lens unit, and an optical de-multiplexer (O-DeMux). The lens converts the wavelength multiplexed signal into a quasi-collimated beam. The lens unit narrows a diameter of the quasi-collimated beam. The O-DeMux de-multiplexes the narrowed quasi-collimated beam coming from the lens unit by wavelength selective filters (WSFs) each having optical distances from the lens unit different from each other.
Inventors:
Mitsui Mainsei
Hiroshi Hara
Yuichi Tamaki
Hiroshi Hara
Yuichi Tamaki
Application Number:
JP2017196222A
Publication Date:
July 04, 2022
Filing Date:
October 06, 2017
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
Sumitomo Electric Device Innovation Co., Ltd.
Sumitomo Electric Device Innovation Co., Ltd.
International Classes:
G02B6/42
Domestic Patent References:
| JP8112687A | ||||
| JP2009535645A | ||||
| JP2009198958A | ||||
| JP2006114684A |
Foreign References:
| US20170134099 | ||||
| CN103837936A |
Attorney, Agent or Firm:
Towa International Patent Office
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