OPTICAL SWITCH

WIPO Patent Application WO/2017/190481

A1

An optical switch (100), comprising: a first optical waveguide (121), a second optical waveguide (122) and a first heater (110). Taking the position of the minimum distance between the first optical waveguide (121) and the second optical waveguide (122) as an interface, the first optical waveguide (121) comprises a first sub-optical waveguide (1211) and a third sub-optical waveguide (1212), and the second optical waveguide (122) comprises a second sub-optical waveguide (1221) and a fourth sub-optical waveguide (1222). The first heater (110) is adjacent to the third sub-optical waveguide (1212). A first medium material (140) is provided between the first heater (110) and the third sub-optical waveguide (1212), a second medium material (141) is provided between the third sub-optical waveguide (1212) and the fourth sub-optical waveguide (1222), and the thermal conductivity of the first medium material (140) is higher than that of the second medium material (141). The optical switch (100) has high heating efficiency, fewer heaters and is easy to control.

XING JIEJIANG (CN)
LI MING (CN)
TU XIN (CN)

PCT/CN2016/104051

November 09, 2017

October 31, 2016

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HUAWEI TECH CO LTD (CN)

G02F1/313; G02B6/125

CN1221496A	1999-06-30
CN1811499A	2006-08-02
US5181262A	1993-01-19
CN102944913A	2013-02-27
CN1278605A	2001-01-03
CN1540427A	2004-10-27
US5706374A	1998-01-06

See also references of EP 3441817A4
"Ultra-compact 32 x 32 strictly-non-blocking Si-wire optical switch with fan-out LGA interposer", OPTICS EXPRESS, vol. 23, no. 13, June 2015 (2015-06-01), pages 240124

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