In-line Sagnac interferometer current sensor /
We demonstrate for the first time a near shot noise limited
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| Format: | Thesis Book |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=742745591&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD |
| Summary: | We demonstrate for the first time a near shot noise limited in-line Sagnac interferometer current sensor. It is shown to have a number of advantages over the optical current sensors based on polarimetric Faraday and Faraday/Sagnac loop inter ferometer topologies, including lower sensitivity to environmental disturbances, less demanding optical components, and easy installation. Our contributions to the field of fiber-optic current sensors include the demon stration of a near shot noise limited in-line Sagnac interferometer current sensor and a demonstration of the effects of the acoustic and thermal perturbations on our sen sor. In addition , a new high power (> 1-mW fiber pigtailed) broadband source using coherence-collapsed 1.3 um multimode laser diode was investigated. We believe that this source is an attractive low-cost alternative to edge light emitting, superluminescent diode, and fiber light source. Furthermore, we examine the limit of a noise subtraction technique in our Sagnac interferometer current sensor. |
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| Item Description: | Vita. "Major Subject: Electrical Engineering". |
| Physical Description: | xi, 120 leaves : illustrations ; 28 cm. Issued also on microfiche from University Microfilms Inc. |
| Bibliography: | Includes bibliographical references. |