Accurate Prediction of Petermann I and II Spot Sizes of First Higher Order Mode for Kerr Type Nonlinear Graded Index Fiber by a Simple Method

In this paper, we have presented the far field pattern in presence and absence of Kerr type nonlinearity for the first higher order mode in Dispersion shifted and dispersion flattened type optical fibers. Our analytical results are based on simple power series expressions for the first higher order (LP11) mode of aforesaid fibers, which have been formulated by Chebyshev formalism. Using the analytical expressions for the linear case, method of iteration is applied in order to predict the concerned propagation parameters in presence of Kerr type nonlinearity. We have taken some typical trapezoidal index, step W and Parabolic W fibers for our study. Our results for the far field pattern have been shown to be in excellent agreement with the exact numerical results computed by rigorous finite element technique. The simplicity and accuracy of our formalism will prove helpful to the designers for setting up of efficient low dispersion optical link.

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Radial distribution of pump and signal intensities in step index EDFA for LP₁₁ mode in Kerr nonlinear condition

Ray

Majumdar

Gangopadhyay

2022

Journal of Optical Communications

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In an all-optical communication system, an erbium-doped fiber amplifier performs a very significant role. The effectiveness of the operation of this kind of amplifier depends on different parameters of the amplifier. Variation of the intensities of pump and signal with distance along the radius of the fiber from the core axis is one such significant parameter. In our present case, we have studied the distribution of the intensities of both the pump and signal along the radius of the fiber in an erbium-doped dual-mode fiber amplifier for the LP11 mode. In the present case, some step-index fibers of different normalized frequencies have opted. Our study is an application of the Chebyshev technique expressing the LP11 modal field in the form of a power series. A little computation is required for the prediction of the concerned results by this technique. Results obtained from this study show an excellent match with those found by the rigorous finite element method establishing its accuracy. This study using such a user-friendly and accurate technique will be helpful to the optical engineers involved in this domain.

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Accurate Prediction of Petermann I and II Spot Sizes of First Higher Order Mode for Kerr Type Nonlinear Graded Index Fiber by a Simple Method

Cited by 3 publications

References 26 publications

The influence of Kerr nonlinear effect on the signal and pump intensities in parabolic and triangular index EDFAs

The influence of Kerr nonlinear effect on the signal and pump intensities in parabolic and triangular index EDFAs

An accurate but simple method for estimation of the influence of kerr nonlinearity on the far field pattern of LP₁₁ mode in dispersion-shifted and dispersion-flattened fibers

Radial distribution of pump and signal intensities in step index EDFA for LP₁₁ mode in Kerr nonlinear condition

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Accurate Prediction of Petermann I and II Spot Sizes of First Higher Order Mode for Kerr Type Nonlinear Graded Index Fiber by a Simple Method

Cited by 3 publications

References 26 publications

The influence of Kerr nonlinear effect on the signal and pump intensities in parabolic and triangular index EDFAs

The influence of Kerr nonlinear effect on the signal and pump intensities in parabolic and triangular index EDFAs

An accurate but simple method for estimation of the influence of kerr nonlinearity on the far field pattern of LP11 mode in dispersion-shifted and dispersion-flattened fibers

Radial distribution of pump and signal intensities in step index EDFA for LP11 mode in Kerr nonlinear condition

Contact Info

Product

Resources

About

An accurate but simple method for estimation of the influence of kerr nonlinearity on the far field pattern of LP₁₁ mode in dispersion-shifted and dispersion-flattened fibers

Radial distribution of pump and signal intensities in step index EDFA for LP₁₁ mode in Kerr nonlinear condition