Propagation of temporal mode multiplexed optical fields in fibers : influence of dispersion

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Wen Zhao
  • Nan Huo
  • Liang Cui
  • Xiaoying Li
  • Z. Y. Ou

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)447-459
Journal / PublicationOptics Express
Volume30
Issue number1
Online published21 Dec 2021
Publication statusPublished - 3 Jan 2022

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Abstract

Exploiting two interfering fields which are initially in the same temporal mode but with the spectra altered by propagating through different fibers, we characterize how the spectral profiles of temporal modes change with the fiber induced dispersion by measuring the fourth-order interference when the order number and bandwidth of temporal modes are varied. The experiment is done by launching a pulsed field in different temporal modes into an unbalanced Mach-Zehnder interferometer, in which the fiber lengths in two arms are different. The results show that the mode mismatch of two interfering fields, reflected by the visibility and pattern of interference, is not only dependent upon the amount of unbalanced dispersion but also related to the order number of temporal mode. In particular, the two interfering fields may become orthogonal under a modest amount of unbalanced dispersion when the mode number of the fields is k ≥ 2. Moreover, we discuss how to recover the spectrally distorted temporal mode by measuring and compensating the transmission induced dispersion. Our investigation paves the way for further investigating the distribution of temporally multiplexed quantum states in fiber network.

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Citation Format(s)

Propagation of temporal mode multiplexed optical fields in fibers : influence of dispersion. / Zhao, Wen; Huo, Nan; Cui, Liang; Li, Xiaoying; Ou, Z. Y.

In: Optics Express, Vol. 30, No. 1, 03.01.2022, p. 447-459.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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