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Title:
MULTI-MODE INTERFERENCE MULTIPLEXER AND DEMULTIPLEXER, AND OPTICAL ELEMENT USING SAME
Document Type and Number:
WIPO Patent Application WO/2018/216249
Kind Code:
A1
Abstract:
The present invention provides a multi-mode interference multiplexer and demultiplexer that introduces light into a single-mode waveguide while preventing reflected return light in the multi-mode interference multiplexer and demultiplexer. The multi-mode interference multiplexer and demultiplexer comprises a multi-mode waveguide (1), a first single-mode waveguide (2a) connected to a first end, a second single-mode waveguide (2c) opposite the first single-mode waveguide, a third single-mode waveguide (2b) connected to a second end, a reflective surface (4) opposite the third single-mode waveguide, and a fourth single-mode waveguide (5) connected at a side end. The light entering from the second and the third single-mode waveguides is reflected by the reflective surface and forms an image at a first connection section (31) at the side end of the fourth single-mode waveguide.

Inventors:
TAKABAYASHI MASAKAZU (JP)
NISHIKAWA SATOSHI (JP)
AKIYAMA KOICHI (JP)
Application Number:
PCT/JP2017/043383
Publication Date:
November 29, 2018
Filing Date:
December 04, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G02B6/125; G02F1/025; H01S5/026; H01S5/40
Domestic Patent References:
WO2011065014A12011-06-03
WO2005116704A12005-12-08
Foreign References:
US20160011370A12016-01-14
JP2006323135A2006-11-30
JP2012527010A2012-11-01
JPH04346301A1992-12-02
JP2013130638A2013-07-04
JP2010256707A2010-11-11
JP2014202936A2014-10-27
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (JP)
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