VARIABLE OPTICAL ATTENUATOR AND VARIABLE OPTICAL ATTENUATION SYSTEM

WIPO Patent Application WO/2023/210234

A1

[Problem] To achieve, with a simple configuration, a variable optical attenuator that is capable of individually adjusting the amount of light that propagates through a plurality of cores. [Solution] A variable optical attenuator 10 which receives input of light that propagates through a first optical fiber 41 having a plurality of cores, which individually adjusts the amount of light that has propagated through each core, and which outputs the light to a second optical fiber 42 having a plurality of cores. The variable optical attenuator 10 comprises a separation optical system 11, 12 that spatially separates a plurality of light beams emitted into a space from the plurality of cores of the first optical fiber 41, and optical attenuation means 15(a), 15(b) that are capable of individually adjusting that attenuation amount of the plurality of light beams separated by the separation optical system 11, 12.

JPS6286306	OPTICAL FIBER DEVICE
WO/2014/169321	OPTICAL SWITCHING APPARATUS AND METHOD USING QUANTUM CONTROL

FURUKAWA HIDEAKI (JP)
KOBAYASHI TETSUYA (JP)
FUKUMITSU MASARU (JP)
TAKAHATA TAKETOSHI (JP)
NAGAYAMA SAYAKA (JP)

PCT/JP2023/012177

November 02, 2023

March 27, 2023

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OPTOQUEST CO LTD (JP)
NAT INST INF & COMM TECH (JP)

G02B6/26; G02B6/02; G02B26/02; G02F1/01; G02F1/13

JP2013105152A	2013-05-30
JP2014503081A	2014-02-06
JP2004310003A	2004-11-04
JP2003185984A	2003-07-03
JP2004522188A	2004-07-22
JP2020144186A	2020-09-10
JPH04317009A	1992-11-09
JP2015135413A	2015-07-27
JP2016109887A	2016-06-20
US20120251045A1	2012-10-04

HIROSE Takayuki (JP)

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