Title:
POLARIZATION SENSITIVE DISTRIBUTED OPTICAL FREQUENCY DOMAIN REFLECTION TURBULENCE SENSING DEVICE AND DEMODULATION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/023425
Kind Code:
A1
Abstract:
A polarization sensitive distributed optical frequency domain reflection turbulence sensing device employing optical frequency domain reflection technology and polarization control and extraction technology, including an ultra-narrow line width tunable laser module, a polarization generation and polarization diversity detection module, an optical frequency and phase monitoring module and a high speed optical switch module, which form a large scale long distance optical sensing network. Also provided is a polarization sensitive distributed optical frequency domain reflection turbulence demodulation method, which employs the optical frequency non-linearity and light source phase noise suppression and compensation and super resolution analysis method, advanced de-noising method and optical fibre distributed wave plate model Jones and Muller matrix based polarization resolving method to realize the extraction of polarization information in the sensing fibre.
Inventors:
LIU TIEGEN (CN)
LIU KUN (CN)
DING ZHENYANG (CN)
JIANG JUNFENG (CN)
LI DINGJIE (CN)
LIU KUN (CN)
DING ZHENYANG (CN)
JIANG JUNFENG (CN)
LI DINGJIE (CN)
Application Number:
PCT/CN2011/084101
Publication Date:
February 21, 2013
Filing Date:
December 16, 2011
Export Citation:
Assignee:
UNIV TIANJIN (CN)
LIU TIEGEN (CN)
LIU KUN (CN)
DING ZHENYANG (CN)
JIANG JUNFENG (CN)
LI DINGJIE (CN)
LIU TIEGEN (CN)
LIU KUN (CN)
DING ZHENYANG (CN)
JIANG JUNFENG (CN)
LI DINGJIE (CN)
International Classes:
G01H9/00; G01D5/353
Domestic Patent References:
| WO2010073002A1 | 2010-07-01 |
Foreign References:
| CN101650197A | 2010-02-17 | |||
| CN102045120A | 2011-05-04 | |||
| CN102147236A | 2011-08-10 | |||
| CN101680781A | 2010-03-24 | |||
| US5880824A | 1999-03-09 | |||
| CN101639379A | 2010-02-03 | |||
| CN101261141A | 2008-09-10 |
Other References:
WU, ZHAOXIA ET AL.: "The Fully Distributed Optical Fiber Strain Sensor Based on Brilliouin Optical-fiber Frequency Domain Reflectometry", CHINESE JOURNAL OF SCIENTIFIC INSTRUMENT, vol. 27, no. 3, March 2006 (2006-03-01), pages 237 - 240
Attorney, Agent or Firm:
TIANJIN JIAMENG INTETTECTUAL PROPERTY AGENT CO., LTD (CN)
天津佳盟知识产权代理有限公司 (CN)
天津佳盟知识产权代理有限公司 (CN)
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