Interferometric assessment of induced nonlinear susceptibility in perturbed single-mode optical fiber for all-optical switching

El-Diasty, Fouad

doi:doi:10.1117/1.OE.51.1.015007

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Optical Engineering / Volume 51 / Issue 1 / Fiber Optics and Optical Communication

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Interferometric assessment of induced nonlinear susceptibility in perturbed single-mode optical fiber for all-optical switching

Opt. Eng. 51, 015007 (Jan 31, 2012); http://dx.doi.org/10.1117/1.OE.51.1.015007

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Abstract

References (46)

Fouad El-Diasty

Ain Shams University, Physics Department Faculty of Science, Abbasia Cairo 11566, Egypt

The induced variations of complex third-order susceptibilities in bent single-mode fiber at the standard operating wavelengths, 1300 and 1550 nm, is studied using Fizeau interferometry for radius of curvature ranges from 5 to 11 mm. At λ = 1300 nm and at the minimum radius of curvature R = 5 mm, the cladding real (dispersive) third-order susceptibility Re|χ⁽³⁾| = 1.167×10⁻¹⁵±0.8% electrostatic unit (esu) on the tensile side, whereas on the compressed side it is 1.309×10⁻¹⁵ esu. On the tensile side, the cladding imaginary (absorptive) third-order susceptibility Im|χ⁽³⁾| = 2.089×10⁻¹⁸±0.8% esu, whereas on the compressed side it is 2.118×10^-18 esu. For λ = 1550 nm, the cladding Re|χ⁽³⁾| and Im|χ⁽³⁾| on the tensile side are 1.116×10^-15 esu and 2.478×10^-18 esu, whereas on the compressed cladding side they are 1.259×10^-15 esu and 2.514×10^-18 esu, respectively. At λ = 1300 nm and R = 5 mm, the core Re|χ⁽³⁾| is given by 1.318×10^-15 esu on the tensile side and 1.324×10^-15 esu on the compressed side. The asymmetry in Im|χ⁽³⁾| is given by 4.687×10^-17 esu on the tensile side and by 4.89×10^-17 esu on the compressed side. With λ = 1550 nm, the core Re|χ⁽³⁾| asymmetry is given by 1.267×10^-15 esu on the tensile side and by 1.272×10^-15 esu on the compressed side. For Im|χ⁽³⁾| its core asymmetry is provided by 5.561×10^-17 esu on the tensile side and by 5.564×10^-17 esu on the compressed side. The observed asymmetry in the measured complex third-order susceptibility components for bent fibers is attributed to the nonlinear response of Young’s modulus of fiber material.

History

Received Sep 21, 2011
Revised Nov 12, 2011
Published online Jan 31, 2012

Digital Object Identifier

http://dx.doi.org/10.1117/1.OE.51.1.015007

Citation

Fouad El-Diasty, "Interferometric assessment of induced nonlinear susceptibility in perturbed single-mode optical fiber for all-optical switching", Opt. Eng. 51, 015007 (Jan 31, 2012); http://dx.doi.org/10.1117/1.OE.51.1.015007