Quadrature detection of optical frequency domain reflectometry for measurement range enhancement in distributed sensing

Young Ho Kim; Youngwoong Kim; Myoung Jin Kim; Byung Sup Rho

doi:10.1117/12.2265483

23 April 2017 Quadrature detection of optical frequency domain reflectometry for measurement range enhancement in distributed sensing

Young Ho Kim, Youngwoong Kim, Myoung Jin Kim, Byung Sup Rho

Author Affiliations +

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 1032387 (2017) https://doi.org/10.1117/12.2265483
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

Measurement range enhancement technique is proposed for distributed sensing of optical frequency domain reflectometry (OFDR) system. By using quadrature detection method in detection part, measurement range can be two times extended compared to conventional OFDR. Distributed strain sensing capability is experimentally reported with extended range up to full coherence length of tunable laser source by analyzing Rayleigh back-scattering signal obtained from the proposed quadrature detection of OFDR system.

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Young Ho Kim, Youngwoong Kim, Myoung Jin Kim, and Byung Sup Rho "Quadrature detection of optical frequency domain reflectometry for measurement range enhancement in distributed sensing ", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032387 (23 April 2017); https://doi.org/10.1117/12.2265483

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