Abstract <p>A tellurite glass based fiber with two interacting bimodal cores was manufactured to study the linear and nonlinear propagation of ultrashort pulses in it. In the manufactured fiber, the effect of the nonlinear optical switching of ultrashort pulses at a wavelength of <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11974_2025_8424_Article_IEq1.gif" Format="GIF" Height="14" Rendition="HTML" Resolution="72" Type="Linedraw" Width="30" /> </InlineMediaObject> <EquationSource Format="TEX">\(1{.}56\)</EquationSource> <!--OptelIns2570002Andrianov-m1--> </InlineEquation> <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11974_2025_8424_Article_IEq2.gif" Format="GIF" Height="12" Rendition="HTML" Resolution="72" Type="Linedraw" Width="15" /> </InlineMediaObject> <EquationSource Format="TEX">\(\mu\)</EquationSource> <!--OptelIns2570002Andrianov-m2--> </InlineEquation>m was experimentally demonstrated in the form of energy redistribution between the cores at the output from the fiber upon an increase in the energy of an input pulse supplied to one of the fiber cores. The effect was observed at relatively low pulse energies below 2 nJ to be of interest for the creation of saturable absorbers for fiber lasers with synchronization of modes.</p>

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Nonlinear Optical Switching of Ultrashort Pulses in a Two-Core Tellurite Light Guide

  • A. V. Andrianov,
  • N. I. Sal’nikov,
  • E. A. Anashkina,
  • V. V. Dorofeev,
  • S. E. Motorin,
  • A. R. Sharafeev,
  • O. V. Timofeev,
  • A. G. Litvak

摘要

Abstract

A tellurite glass based fiber with two interacting bimodal cores was manufactured to study the linear and nonlinear propagation of ultrashort pulses in it. In the manufactured fiber, the effect of the nonlinear optical switching of ultrashort pulses at a wavelength of \(1{.}56\) \(\mu\) m was experimentally demonstrated in the form of energy redistribution between the cores at the output from the fiber upon an increase in the energy of an input pulse supplied to one of the fiber cores. The effect was observed at relatively low pulse energies below 2 nJ to be of interest for the creation of saturable absorbers for fiber lasers with synchronization of modes.