NDLI: Optical Switch

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Optical Switch

Content Provider	Scilit
Author	Sawada, Renshi
Copyright Year	2018
Description	Switching is performed by loading and unloading a mirror that is formed with comb electrode actuators that are the most reliable among micro electro-mechanical systems (MEMS) actuators. This switch is made of an Si active layer on Si On Insulator substrate only by Reactive Ion Etching. If a high switching rate is required, switches based on Electro-Optical effect such as Pockels and Kerr effect are frequently used. Expectations for the MEMS switches increase as Wavelength Division Multiplexing spreads because the MEMS switches, particularly optical switches with a micromirror array have small wavelength dependence. The difficulty of switching, particularly, switching that uses three-dimensional mirrors, consists in the necessity of instant fixation of a preset mirror rotation angle with high accuracy unlike scanners or oscillator sensors. Grating Light Valve that uses a diffraction grating composed of six silicon (Si) nitride movable ribbons is used for switches as well as projectors. Book Name: Encyclopedic Handbook of Integrated Optics
Related Links	https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9781315220949-34&type=chapterpdf
Ending Page	258
Page Count	12
Starting Page	247
DOI	10.1201/9781315220949-34
Language	English
Publisher	Informa UK Limited
Publisher Date	2018-10-03
Access Restriction	Open
Subject Keyword	Book Name: Encyclopedic Handbook of Integrated Optics Mirror Grating Actuators Wavelength Optical Electro Mems Switches
Content Type	Text
Resource Type	Chapter

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