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

• Main Authors: ZHENG, Yaoxian, OUYANG, Zhengbiao, AI, Yuexia
• Format: Patent
• Language: Chinese; English; French
• Published: 08.03.2018
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

Provided is a 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 port (1); a light output port (2); a magneto-optical thin film (3); a background medium (4); and a bias magnetic field. The light input port (1) of the unidirectionally flexible waveguide is a light input end. The light output port (2) is a light output end. 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 is provided at the magneto-optical thin film (3). 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 invention has a simple structure, a small size, low loss and high transmissi