Electro-optic optical switch

• Main Authors: WU LI, LI YANG, XU YUNBING
• Format: Patent
• Language: Chinese; English
• Published: 29.01.2019
• 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

The invention discloses an electro-optic optical switch. The switch sequentially includes a multi-optical fiber head, an optical path compensating sheet, a splitting/combination beam crystal, a half-wave plate, a KTN crystal, a lens, and a reflector. A convex surface of the lens orients to a reflection plane of the reflector, the multi-optical fiber head is provided with an incident optical fiberand two or more emergent optical fibers, an optical signal output by the incident optical fiber passes through the optical path compensating sheet and then enters the splitting/combination beam crystal to be divided into o-light and e-light perpendicular to each other in a polarization direction, the o-light is emitted from the splitting/combination beam crystal directly into the KTN crystal, andthe e-light is emitted from the splitting/combination beam crystal and then passes through the half-wave plate and then enters the KTN crystal; and electrodes are additionally disposed on both sides of the KTN crystal, and the