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Long distance fiber Bragg grating strain sensor interrogation using a high speed Raman-based Fourier domain mode-locked fiber laser with recycled residual Raman pump

Kim, Sunduck and Kwon, Oh-Jang and Lee, Hyeong-Seok and Kim, Chang-Seok and Han, Young-Geun (2013) Long distance fiber Bragg grating strain sensor interrogation using a high speed Raman-based Fourier domain mode-locked fiber laser with recycled residual Raman pump. Optics Express, 21 (11). pp. 13402-13407. ISSN 1094-4087. https://resolver.caltech.edu/CaltechAUTHORS:20130715-094332979

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Abstract

We propose a novel fiber Bragg grating (FBG) sensor interrogation using a Raman-based Fourier-domain mode locking (FDML) fiber laser for a high speed and long distance measurement. A residual Raman pump after the generation of the Raman-based FDML fiber laser is recycled for secondary signal amplification in a 2-m erbium-doped fiber (EDF) to further enhance the output power. The chromatic dispersion is precisely controlled to suppress the phase noise in the FDML laser cavity, resulting in the improvement of an R-number of 1.43 mm/dB. After recycling residual pump, we achieve the 40-km round trip transmission of the sensing probe signal with a high scan rate of 30.8 kHz. With 205-mW residual pump power, the bandwidth and the maximum gain are measured to be more than 50 nm, 10.3 dB at 1550 nm, respectively. The sensitivity of the proposed Raman-based FDML fiber laser to strain is also measured, which are 0.81 pm/μstrain in the spectral domain and 0.19 ns/μstrain in the time domain, respectively.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1364/OE.21.013402 DOIUNSPECIFIED
http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-21-11-13402PublisherUNSPECIFIED
Additional Information:© 2013 Optical Society of America. Received 10 Apr 2013; revised 20 May 2013; accepted 21 May 2013; published 28 May 2013. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2012R1A1A2000999).
Funders:
Funding AgencyGrant Number
National Research Foundation of Korea (NRF) Basic Science Research ProgramUNSPECIFIED
Ministry of Education, Science and Technology2012R1A1A2000999
Issue or Number:11
Classification Code:OCIS codes: (060.2310) Fiber optics; (060.2370) Fiber optics sensors; (060.3735) Fiber Bragg gratings; (140.3510) Lasers, fiber
Record Number:CaltechAUTHORS:20130715-094332979
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130715-094332979
Official Citation:Optics Express, Vol. 21, Issue 11, pp. 13402-13407 (2013) http://dx.doi.org/10.1364/OE.21.013402
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39356
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:17 Jul 2013 22:10
Last Modified:03 Oct 2019 05:06

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