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Research on Micro-fluid Drving of Microfidic Array Opticl Switch

Author: CaoZuoZuo
Tutor: XuNing
School: Nanjing University of Posts and Telecommunications
Course: Optical Engineering
Keywords: Optical Switch Microfluidic technology Drive Electrostatically actuated Piezoelectric ceramic
CLC: TN929.1
Type: Master's thesis
Year: 2011
Downloads: 55
Quote: 0
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Abstract


Light switches are all key areas of optical communication technology , is the realization of all-optical networks necessary means. All-optical communication network development , the urgent need low power , high speed, low absorption , small size and low cost practical optical switch . Thesis microfluidic array optical switch microfluidic technology and electronic technology combined with shimmer , simple structure, easy to construct a large-scale optical switch array . Paper introduces several typical electric light switch, and driving method according microfluidic Research presented electrostatically driven microfluidic array optical switch structure, and piezoelectric microfluidic optical switch array structure . The basic idea is to control the flow of the liquid , the optical path control , to achieve the function of optical switches . Paper focuses on the microfluidic optical switch drive unit . Production of the electrostatic drive unit , comprising a conductive plate , an insulating layer and a conductive block , but through the study found that the electrostatic driving force generated is small and requires a higher voltage , the direct use of electrostatic drivers are great difficulties. In the piezoelectric drive unit during the study , the experiment tested the PZT thin films produced by the displacement , and the use of soft lithography method produced a micro- flow channel with a small liquid storage tank, verified by experiment PZT the possibility of a liquid , but the small and micro- flow channel groove edges are not smooth, and depth of only 18μm, fall far short of our requirements for the waveguide layer , so need to optimize their production methods . Finally, the paper presents a method of directly using the hot pressing plexiglass (PMMA) materials produced piezoelectric microfluidic optical switch array method , the structure will help the self-focusing as embedded in the V-groove waveguide , through experiments testing the self-focusing rod waveguide coupling loss do , coupling loss can be controlled in 0.2dB or less.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Lightwave communications, laser communications
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