Electrowetting-effect-based two-path liquid optical switch
A technology of electrowetting and liquid light, which is applied in the direction of optics, optical components, instruments, etc., can solve the problem of uneven light transmission of devices, failure to achieve switching effects, difficulty in meeting the requirements of optical switching, wavelength selection and all-optical layer routing selection, etc. question
Active Publication Date: 2013-06-12
SICHUAN UNIV
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Problems solved by technology
The current liquid optical switch can only realize the on-off of a single light source, which is difficult to meet the requirements of optical switching, wavelength selection and all-optical routing selection in the field of optical networks. The gravity effect of liquid
When the liquid device is placed vertically, due to the gravity effect of the internal liquid, the light transmission of the device will be uneven, and a good switching effect cannot be achieved, so it cannot work normally
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[0016] An embodiment of a two-way liquid optical switch based on the electrowetting effect proposed by the present invention will be described in detail below to further describe the present invention. It is necessary to point out that the following examples are only used for further description of the present invention, and cannot be interpreted as limiting the protection scope of the present invention. Those skilled in the art make some non-essential improvements and improvements to the present invention according to the above-mentioned content of the invention. Adjustment still belongs to the protection scope of the present invention.
[0017] An embodiment of the present invention is that both the upper substrate and the lower substrate are made of 10mm×8mm PMMA (polymethyl methacrylate) material, and the transparent hard cavity is 10mm×8mm×8mm PMMA (polymethyl methacrylate) ) material. ITO electrode and ITO electrodes The size is 8mm×3.5mm, ITO electrode The size i...
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The invention discloses an electrowetting-effect-based two-path liquid optical switch, which comprises an upper substrate, a transparent hard cavity body, a lower substrate, a light screen, a dielectric layer, an indium tin oxide (ITO) electrode I, an ITO electrode II, an ITO electrode III, colored droplets and light through holes, wherein colorless transparent liquid is filled in the transparent hard cavity body; the three ITO electrodes are embedded into the lower substrate at equal intervals, and the intervals between them are the same, the ITO electrode II is grounded; the two light through holes with the same diameter are symmetrically distributed in the center of the light screen; and the colored droplets are conductive, and the colorless transparent liquid is nonconductive. According to the liquid optical switch, two paths of light can be transmitted and blocked, and a gravity effect can be effectively overcome.
Description
technical field [0001] The invention relates to non-mechanical optical switch technology, more specifically, the invention relates to a two-way liquid optical switch technology based on electrowetting effect. Background technique [0002] An optical switch is a switch that switches on and off an optical signal in an optical fiber or waveguide optical path. It has attractive application prospects in the fields of remote optical communication, optical fiber sensing, optical network, and information display. At the same time, optical switches can also be used as components of devices such as optical attenuators, adjustable light valves, and spatial modulators. Among them, the liquid optical switch device has the advantages of miniaturization, simple manufacture and low energy consumption because it does not need to introduce movable solid components inside. There are two types of liquid optical switches: mechanical and non-mechanical. The mechanical liquid optical switch requ...
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IPC IPC(8): G02B26/02
Inventor 王琼华刘超李磊
Owner SICHUAN UNIV