Simple but accurate method to compute LP11 mode cutoff frequency of nonlinear optical fibers by Chebyshev technique

Roy Debarup; Sarkar Somenath

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Simple but accurate method to compute LP11 mode cutoff frequency of nonlinear optical fibers by Chebyshev technique

机译：Simple but accurate method to compute LP11 mode cutoff frequency of nonlinear optical fibers by Chebyshev technique

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摘要

We propose a simple method to compute the first higher order mode cutoff frequency of a single-mode fiber in the presence of optical nonlinearity. We consider optical Kerr-type nonlinearity for these fibers having dispersion-shifted and dispersion-flattened profiles. Our analysis involves the Chebyshev method but introduces a linearization of cubic terms of fields due to Kerr-type nonlinearity. Our results are shown to match excellently with the available exact numerical values. Thus, this formulation and stepwise algorithm should be considered as a simple but accurate alternative to deeply involved numerical technique and used as a guideline in calculating and minimizing the modal noise in single-mode nonlinear fibers. (C) 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)

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来源
《Optical Engineering》 |2016年第8期|084105-1-084105-6|共6页
作者
Roy Debarup; Sarkar Somenath;
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作者单位

Univ Calcutta, Dept Elect Sci, 92 Acharya Prafulla Chandra Rd, Kolkata 700009, India;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;光学仪器;
关键词
nonlinear single-mode fiber; Kerr-type nonlinearity; refractive index imperfections; Chebyshev technique;

Simple but accurate method to compute LP11 mode cutoff frequency of nonlinear optical fibers by Chebyshev technique

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