LEAKAGE-FREE, LOW-LOSS WAVEGUIDE HAVING FAST MODE AT MAGNETIC SURFACE OF MAGNETO-OPTICAL THIN FILM THEREOF AND BEING UNIDIRECTIONALLY FLEXIBLE TO ANY ANGLE

WIPO Patent Application WO/2018/041173

A1

A leakage-free, low-loss waveguide having a fast mode at a magnetic surface of a magneto-optical thin film thereof and being unidirectionally flexible to any angle, comprising: a light input end (1); a light output end (2); a magneto-optical thin film (3); a background medium (4); two wave-absorbing layers (5, 6); and one bias magnetic field (H0). The magneto-optical thin film (3) is provided in the background medium (4). The magneto-optical thin film (3) is made of a magneto-optical material. The magneto-optical thin film (3) and the background medium (4) can be bent to any angle. The bias magnetic field (H0) is provided at the magneto-optical thin film (3), and the orientation thereof can be controlled. The magneto-optical thin film (3) has a ring-shaped bent portion. A magnetic surface fast-wave exists at a surface between the magneto-optical material and the background medium (4). The leakage-free, low-loss waveguide having a fast mode at a magnetic surface of a magneto-optical thin film thereof and being unidirectionally flexible to any angle has a simple structure, a small size, low loss and high transmission efficiency, facilitates integration, is suitable for large-scale optical integrated circuits, and can be widely applied in various optical waveguide designs.

ZHENG YAOXIAN (CN)
OUYANG ZHENGBIAO (CN)

PCT/CN2017/099810

March 08, 2018

August 31, 2017

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UNIV SHENZHEN (CN)

G02B6/125

WO2009081488A1

2009-07-02

CN106154416A	2016-11-23
CN106405729A	2017-02-15
CN106249445A	2016-12-21
CN101672987A	2010-03-17
CN104570409A	2015-04-29
CN101375200A	2009-02-25

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