Fast Light Enhanced Active and Passive Gyroscopes, Accelerometers and Fiber- Optic Sensors, Phase I

Metadata Updated: May 2, 2019

The fast-light effect in a cavity, produced by anomalous dispersion, has emerged as an important mechanism for enhancing the sensitivity of many devices. There are two modes of operation of such a cavity. In the active mode, the system is a superluminal ring laser (SRL) that experiences an anomalous dispersion caused by the gain medium. In the passive mode, the system is a white light cavity (WLC) that experiences an anomalous dispersion caused by an intra-cavity medium or via coupling to another cavity or another mode in the same cavity. We will investigation the development several closely related technologies based on the fast light effect: gyroscopes, accelerometers and general purpose fiber-optic sensors. For each technology, we will primarily pursue the active approach. The gyroscope will be based on using a pair of spatially overlapping SRLs realized via Raman gains, with Raman depletion used for anomalous dispersion. The accelerometer will be realized by using a similar system, but with two lasers that are spatially shifted with respect to each other. The fiber-optic sensor will be based on using a pair of Brillouin gain based SRLs, where the anomalous dispersion is produced via coupling to a cavity. In addition, for each device, we will investigate theoretically some passive techniques in order to determine relative advantages and tradeoffs between the two approaches. Specifically, for the gyroscope and the accelerometer, we will investigate the use of couple cavity based WLCs; for the fiber-optic sensor, we will investigate the use of a WLC realized by dual-peaked Brillouin gain. The particular mode of operation to be pursued for developing a practical version of each of these devices under Phase II will be established in accordance with the findings of the Phase I effort, and potential feedback and guidance received from the NASA program manager. Northwestern University, with Prof. Shahriar as the PI, will be a subcontractor.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

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Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_34210
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TECHPORT SUPPORT
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20190501230127
Harvest Object Id 289d0886-e5dc-46a8-a4b0-90ab72ff0f3d
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2015-12-01
Homepage URL https://techport.nasa.gov/view/34210
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 46257aee317d9283b2b8476f80f749752aacda24
Source Schema Version 1.1

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