Mitigation of the birefringence dispersion on the polarization coupling measurement in a long-distance high-birefringence fiber

Zhang, Hongxia; Chen, Xinwei; Ye, Wenting; Xu, Tianhua; Jia, Dagong; Zhang, Yimo

doi:10.1088/0957-0233/23/2/025203

Cited by 7 publications

(3 citation statements)

References 21 publications

(27 reference statements)

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“…Optical coherence domain polarimetry (OCDP) based on white light interferometry is a distributed high-precision polarization-coupling measurement technology [1,2]. It has been widely used for distributed measurement such as the testing of long distance polarization maintaining fibre (PMF) devices [3] and the polarization crosstalk in fields of fiber optic gyro (FOG) [4]. For the OCDP used for evaluating the precision-grade FOG (performance range of 0.001°/h bias stability), the dynamic range and measurement sensitivity of the OCDP should be as high as 80 dB and − 10 8 rad, respectively [5,6].…”

Section: Introductionmentioning

confidence: 99%

A differential delay line for optical coherence domain polarimetry

Yang

Yuan

Zhou

et al. 2015

Meas. Sci. Technol.

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We propose an optical delay line based on differential structure for improving measurement accuracy and extending scanning length of optical coherence domain polarimetry (OCDP). The differential delay line is composed of two independent graded refractive index lenses (GRIN) and a double-faced mirror. The OCDP measurement model with loss coefficient and measurement error caused by the GRIN-lens-based delay line is discussed. Compared to the general optical delay line based on a single GRIN lens, the fluctuation of the loss coefﬁcient of differential delay line is reduced to ± 0.1 dB with scanning range of 0.8 m, which corresponds to 80% improvement.

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Section: Introductionmentioning

confidence: 99%

A differential delay line for optical coherence domain polarimetry

Yang

Yuan

Zhou

et al. 2015

Meas. Sci. Technol.

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“…Chromatic dispersion of optical fibers and photonic devices is an important characteristic in optical transmission systems [1], distributed fiber-optic sensors [2], and characterization of ultrashort optical pulses [3], [4]. Spectral interferometry [5]- [8] based on the use of broadband source in combination with a standard Michelson or a Mach-Zehnder interferometer is considered as an effective tool to evaluate the dispersion features of transparent materials.…”

Section: Introductionmentioning

confidence: 99%

Group Delay Dispersion Measurement From a Spectral Interferogram Based on the Cubic Phase Function

et al. 2014

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A novel group delay dispersion (GDD) measurement from a spectral interferogram is presented. Based on the cubic phase function (CPF) of the interference term, the GDD can be directly read from the ridge of CPF without phase retrieval and numerical differentiation operation. The proposed method is applied to measure the GDD and chromatic dispersion difference (CDD) of a polarization-maintaining fiber. The experimental results are unambiguous and insensitive to the filter choice of interference term calculation. GDD measurement can reach a resolution of 1 fs 2 , with a processing time of 25 s for 1001 wavelength points, and CDD measuring deviation is less than 0.5 fs=ðkm Á nmÞ around the center wavelength. The method is expected to be suitable for processing all spectral interferograms with polynomial phases.

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“…The decent of strength accuracy and spatial resolution confines the multiple applications in white light interferometry sensing systems. Several dispersion compensation methods have been proposed in time or frequency domain [5][6], among which the dispersion coefficient needs to be obtained first. The widths of interferogram of different coupling points need to be measured preliminarily and the coefficient is calculated by a series of curve-fittings.…”

Section: Introductionmentioning

confidence: 99%

Novel bidirectional path measurement of polarization cross-coupling distribution in PMF

et al. 2013

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The measurement accuracy of polarization cross-coupling strength based on white-light interferometry obviously decreases in long-distance polarization maintaining fiber (PMF), due to the difference of dispersion between two eigenmodes (birefringence dispersion). In this paper, we demonstrate a bidirectional measurement method with the scheme including a polarization maintaining coupler, a magnetic optical circulator and an Optical Coherence Domain Polarimeter (OCDP). The experiment setup and results are described in detail. The cross-coupling distribution results from each direction measurement were processed to mitigate the influence of dispersion. The compensation is conducted on coupling strength results, instead of raw interference signal in traditional method. The method saves the investigation of birefringence dispersion coefficient and light source parameters compared with compensation in frequency domain. Our experiment with a PMF coil of 200m length demonstrates the effectiveness in improving strength accuracy with absolute deviation less than 0.31dB, and spatial resolution recovered to 8.4cm.

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Mitigation of the birefringence dispersion on the polarization coupling measurement in a long-distance high-birefringence fiber

Cited by 7 publications

References 21 publications

A differential delay line for optical coherence domain polarimetry

A differential delay line for optical coherence domain polarimetry

Group Delay Dispersion Measurement From a Spectral Interferogram Based on the Cubic Phase Function

Novel bidirectional path measurement of polarization cross-coupling distribution in PMF

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