Optical switch and production method therefor, information transmission device using

An optical switch and information transmission technology, applied in optics, microstructure devices composed of deformable elements, optical elements, etc., can solve problems such as difficulties and unstable translation control
CN1620626AInactive Publication Date: 2005-05-25PANASONIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANASONIC CORP
Publication Date
2005-05-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

A piezoelectric element (2) composed of a reflective element (1), a thin film piezoelectric body (3), electrodes (4a, 4b, 4c), and an elastic body (5) is formed on a substrate (7). Voltage, the thin-film piezoelectric body deflects and deforms, driving the reflective element. A plurality of piezoelectric elements are arranged in parallel along the longitudinal direction (8), and a torsion spring (6) is arranged in a direction perpendicular to the longitudinal direction to connect and maintain the reflective element on the substrate. Furthermore, the reflective element is connected to the piezoelectric element through the strain absorbing part (10). According to this configuration, the torsion spring is used as the rotation axis (9), and the reflection element is tilted about the rotation axis.
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Description

technical field

[0001] The present invention relates to an optical switch and its manufacturing method, an information transmission device using the switch, and in particular to an optical switch having an actuator for driving a reflective element and an information transmission device using the switch. Background technique

[0002] In recent years, with the development of high-speed transmission technologies such as frequency division multiple access, information transmission devices using light have become the key devices for realizing broadband Internet and enabling high-speed and large-capacity information communication.

[0003] Furthermore, in order to efficiently connect an optical communication network, various optical switches having the function of an optical signal level switch and the function of an optical attenuator are indispensable devices.

[0004] In the past, optical communication networks have been developed centering on infrastructure systems, but in the...

Claims

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