Counting signal processing and counting level normalization techniques of polarization-insensitive fiber-optic Michelson interferometric sensors
Applied Optics, Vol. 45, Issue 35, pp. 8832-8838 (2006)
http://dx.doi.org/10.1364/AO.45.008832
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Abstract
A counting signal processing technique of the fiber-optic interferometric sensor is proposed. The technique is capable of counting the numbers of the maximum and minimum of the output interferometric signal in a specific time duration, and it can be used as the basis to distinguish the sensing phase signal. It can also be used as a signal detector on applications such as intrusion detection. All sensors are subject to aging of the optical components and bending loss, and therefore the output signal of each sensor may vary with time. We propose a counting level normalization technique to compensate for these variations and to obtain the correct counting numbers.
© 2006 Optical Society of America
OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2430) Fiber optics and optical communications : Fibers, single-mode
History
Original Manuscript: February 8, 2006
Revised Manuscript: July 22, 2006
Manuscript Accepted: August 3, 2006
Citation
Shih-Chu Huang and Hermann Lin, "Counting signal processing and counting level normalization techniques of polarization-insensitive fiber-optic Michelson interferometric sensors," Appl. Opt. 45, 8832-8838 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-35-8832
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