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Title: Fiber-bragg grating-loop ringdown method and apparatus

Abstract

A device comprising a fiber grating loop ringdown (FGLRD) system of analysis is disclosed. A fiber Bragg grating (FBG) or Long-Period grating (LPG) written in a section of single mode fused silica fiber is incorporated into a fiber loop. By utilizing the wing areas of the gratings' bandwidth as a wavelength dependent attenuator of the light transmission, a fiber grating loop ringdown concept is formed. One aspect of the present invention is temperature sensing, which has been demonstrated using the disclosed device. Temperature measurements in the areas of accuracy, stability, high temperature, and dynamic range are also described.

Inventors:
 [1]
  1. Starkville, MS
Issue Date:
Research Org.:
MISSISSIPPI STATE UNIVERSITY
Sponsoring Org.:
USDOE
OSTI Identifier:
983767
Patent Number(s):
7,323,677
Application Number:
11/181,798
Assignee:
Mississippi State University (Mississippi State, MS) HQPR
DOE Contract Number:  
FC01-04EW54600
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Wang, Chuji. Fiber-bragg grating-loop ringdown method and apparatus. United States: N. p., 2008. Web.
Wang, Chuji. Fiber-bragg grating-loop ringdown method and apparatus. United States.
Wang, Chuji. Tue . "Fiber-bragg grating-loop ringdown method and apparatus". United States. https://www.osti.gov/servlets/purl/983767.
@article{osti_983767,
title = {Fiber-bragg grating-loop ringdown method and apparatus},
author = {Wang, Chuji},
abstractNote = {A device comprising a fiber grating loop ringdown (FGLRD) system of analysis is disclosed. A fiber Bragg grating (FBG) or Long-Period grating (LPG) written in a section of single mode fused silica fiber is incorporated into a fiber loop. By utilizing the wing areas of the gratings' bandwidth as a wavelength dependent attenuator of the light transmission, a fiber grating loop ringdown concept is formed. One aspect of the present invention is temperature sensing, which has been demonstrated using the disclosed device. Temperature measurements in the areas of accuracy, stability, high temperature, and dynamic range are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {1}
}

Patent:

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