Ch9Sec9

Ch9Sec9 - Dr. Joseph C. Palais 9.9 7 9.9.3 MEMS Switches...

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Dr. Joseph C. Palais 9.9 1 THE FIBER FORUM Fiber Optic Communications Dr. JOSEPH C. PALAIS PRESENTED BY
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Dr. Joseph C. Palais 9.9 2 Section 9.9 MEMS SWITCHES
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Dr. Joseph C. Palais 9.9 3 9.9.1 MEMS In this section we describe the micro-electro- mechanical system (MEMS) switch.
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Dr. Joseph C. Palais 9.9 4 9.9.2 MEMS Mirrors The MEMS mirror is the major component in the MEMS switch. It is a tiny movable mirror that allows the beam to be directed along various paths. Two designs are illustrated on the next slide.
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Dr. Joseph C. Palais 9.9 5 SUBSTRATE MIRROR SUBSTRATE HINGE Thin-film mirror Bulk-silicon mirror MIRROR HINGE
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Dr. Joseph C. Palais 9.9 6 The mirrors are moved in a number of ways: electrostatic, electromagnetic, piezoelectric, or thermal. 1.Electrostatic: 2.Electromagnetic: 3.Piezoelectric: 4.Thermal:
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Unformatted text preview: Dr. Joseph C. Palais 9.9 7 9.9.3 MEMS Switches INPUT FIBERS MIRROR ARRAY COLLIMATORS MIRROR UP MIRROR DOWN OUTPUT FIBERS Two-dimensional MEMS switch Dr. Joseph C. Palais 9.9 8 MOVING MIRROR ARRAY (INPUT) COLLIMATORS OUTPUT FIBER ARRAY INPUT FIBER ARRAY MOVING MIRROR ARRAY (OUTPUT) Three-dimensional MEMS switch Dr. Joseph C. Palais 9.9 9 9.9.4 MEMS Switch Performance Optical switching advantages: 1.Fast switching 2.No need to convert signal from optical-to- electronic-to-optical form 3.Accommodates all wavelengths (large bandwidth) 4.Low insertion loss 5.Handles many channels and destinations Dr. Joseph C. Palais 9.9 10 9.9.5 MEMS Applications 1 Testing setup Dr. Joseph C. Palais 9.9 11 Optical cross connect N λ 15...
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This note was uploaded on 01/26/2011 for the course EEE 546 taught by Professor Palais during the Spring '10 term at ASU.

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Ch9Sec9 - Dr. Joseph C. Palais 9.9 7 9.9.3 MEMS Switches...

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