Temporal pulse compression by dynamic slow-light tuning in photonic-crystal waveguides

K. Kondo, N. Ishikura, T. Tamura, and T. Baba
Phys. Rev. A 91, 023831 – Published 25 February 2015

Abstract

We demonstrate on-chip pulse compression based on the dynamic tuning in a copropagating slow-light system. Low-dispersion slow-light control pulse in lattice-shifted photonic-crystal waveguides enhances two-photon absorption. Generating free carriers dynamically through the two-photon absorption so as to sweep a signal slow-light pulse, the spectral broadening occurs with a monotonic chirp. The signal pulse is then compressed through the compensation of the chirp by means of integrated heaters. An input pulse of 13.9 ps length was compressed to 1.4 ps, corresponding to a compression factor of 9.9.

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  • Received 25 November 2014
  • Revised 27 January 2015

DOI:https://doi.org/10.1103/PhysRevA.91.023831

©2015 American Physical Society

Authors & Affiliations

K. Kondo, N. Ishikura, T. Tamura, and T. Baba

  • Department of Electrical and Computer Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogayaku, Yokohama 240-8501, Japan

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Issue

Vol. 91, Iss. 2 — February 2015

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