Characteristics of transverse-stress-induced phase change through a distinct dual-mode fiber in a Sagnac loop

Khan, Saba N.; Chatterjee, Sanjit; Mondal, Kajal Kumar; Chaudhuri, Partha Roy

doi:10.1364/josaa.30.001013

Cited by 7 publications

(1 citation statement)

References 29 publications

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“…The transmission characteristics of an all-fiber SLHI can be investigated using the Jones matrix analysis [17,18]. The SLHI is composed of a 3 dB coupler with the 2 × 2 single-mode fiber ports and a section of the HB-ATCPCF.…”

Section: Operation Principle Of the Slhimentioning

confidence: 99%

Simultaneous multi-parameter measurement using Sagnac loop hybrid interferometer based on a highly birefringent photonic crystal fiber with two asymmetric cores

Naeem¹,

Kim²,

Kim³

et al. 2015

Opt. Express

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We have experimentally investigated the multi-parameter sensing characteristics in a novel all-fiber Sagnac loop hybrid interferometer based on a highly birefringent photonic crystal fiber with two asymmetric cores. The sensor device was based on a combination of two types of in-fiber interferences, the intra-core-mode Sagnac interference and the inter-core-mode Mach-Zehnder interference due to the distinct birefringent properties associated with the asymmetric cores. Fast Fourier transform analysis on the transmission spectra of the device exhibited six clear peaks in the spatial frequency domain. By examining the phase shift responses of two distinct Sagnac and one Mach-Zehnder interference peaks, the response matrix that enable simultaneous measurement of torsion, strain, and temperature could be obtained. The proposed all-fiber Sagnac loop hybrid interferometer has the advantages such as simplicity of the device structure, compact device size, and capability for simultaneous sensing of multiple parameters.

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Section: Operation Principle Of the Slhimentioning

confidence: 99%