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Optical switch with three-end exchange

A technology of optical switch and fiber coupling, which is used in the coupling of optical waveguides, electromagnetic wave transmission systems, electrical components, etc.

Inactive Publication Date: 2004-07-07
SHANGHAI INST OF LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the above problems, the purpose of the present invention is to provide a three-terminal switchable optical switch that can solve some common problems existing in optical switching and can solve M×N multi-channel switching matrix

Method used

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  • Optical switch with three-end exchange
  • Optical switch with three-end exchange
  • Optical switch with three-end exchange

Examples

Experimental program
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Embodiment Construction

[0012] Depend on figure 1 As shown, the three-terminal exchangeable optical switch consists of a set of GRIN lenses 4, a single-fiber collimator 3 coupled and solidified by a single pigtail 2, and a dual-fiber collimator coupled and solidified by double pigtails 8 and 9 7. A driving plate 6 with total light reflection function and capable of micro-displacement, a driver 6 and two stainless steel sleeves 1 outside the collimator, the coupling plane of the GRIN self-focusing lens 4 in the collimator It is at an angle of 4-8 degrees to the optical coupling plane of the single / double pigtail coupler, the driving plate 6 is coated with a total optical reflection film, and the stainless steel sleeve 1 is connected to the single fiber collimator 3 and the double fiber collimator Have a V-shaped groove 3 between 7.

[0013] The fiber-coupled collimator combined with the GRIN lens and the pigtail coupler can also be made into a three-fiber collimator by symmetrically coupling three op...

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Abstract

A switch consists of a group of optical fibre coupled collimator combined and solidified together by GRIN lens or C lens with tail fibre coupler, an actuating sheet enabling minute quantity displacement and having all optical reflecting function as well as an actuator. The coupling plane of GRIN lens or C lens in the collimator is presented to be right angle to optical coupling plane of the tail fibre coupler with optical reflecting film plated on the actuating sheet. Three-terminal exchangeable switch has simple structure and quick speed in light exchange.

Description

technical field [0001] The invention relates to a three-terminal switchable optical switch used in all-optical broadband communication network, all-optical network equipment and large-capacity database or video IP multi-service channel switch crossover. Background technique [0002] The three-terminal switchable optical switch device is one of the core devices widely used in the construction of all-optical network engineering. Because the all-optical switching technology is still in the experimental stage, the Internet still uses ordinary telecommunication switches to connect the physical layer of the network. However, judging from the fact that multimedia has been widely used on the Internet and the network is in great need of further expansion, the optical-electrical-optical switching method adopted by the current telecommunication switches is far from keeping up with the needs of network development, which is a constraint and An "electronic bottleneck" that prevents furt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/32G02B6/35H04Q11/00
Inventor 王海彪王又良曲世浦
Owner SHANGHAI INST OF LASER TECH
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