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Experimental observation of a Raman-induced temporal waveguide

Junchi Zhang1, William Donaldson2, and Govind P. Agrawal1,2

  • 1The Institute of Optics, University of Rochester, Rochester, New York 14627, USA
  • 2Laboratory of Laser Energetics, University of Rochester, Rochester, New York 14627, USA

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Phys. Rev. A 107, 063518 – Published 30 June, 2023

DOI: https://doi.org/10.1103/PhysRevA.107.063518

Abstract

The formation of a Raman-induced temporal waveguide is demonstrated by launching short pump and probe pulses inside a photonic crystal fiber. The pump pulse creates a fundamental soliton whose speed changes continuously owing to its deceleration through the Raman-induced red shift of its spectrum. The spectrum of the probe pulse is blue-shifted to ensure that the two pulses move at the same speed and follow the same trajectory over the entire length of the fiber. The output wavelengths of the pump and probe pulses depend on the peak power of input pump pulses and their measured values agree with the predictions based on the dispersion data. Numerical modeling also shows good agreement with the experimental results.

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Phys. Rev. A 107, 063518– Published 30 June, 2023
  • Received 20 January 2023
  • Accepted 26 May 2023
Article part of CHORUS
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