Highly reconfigurable hybrid laser based on an integrated nonlinear waveguide

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

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Author(s)

  • A. AADHI
  • Anton V. KOVALEV
  • Michael KUES
  • Piotr ROZTOCKI
  • Christian REIMER
  • Yanbing ZHANG
  • Tao WANG
  • Brent E. LITTLE
  • Zhiming WANG
  • David J. MOSS
  • Evgeny A. VIKTOROV
  • Roberto MORANDOTTI

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Detail(s)

Original languageEnglish
Pages (from-to)25251-25264
Journal / PublicationOptics Express
Volume27
Issue number18
Online published22 Aug 2019
Publication statusPublished - 2 Sep 2019

Abstract

The ability of laser systems to emit different adjustable temporal pulse profiles and patterns is desirable for a broad range of applications. While passive mode-locking techniques have been widely employed for the realization of ultrafast laser pulses with mainly Gaussian or hyperbolic secant temporal profiles, the generation of versatile pulse shapes in a controllable way and from a single laser system remains a challenge. Here we show that a nonlinear amplifying loop mirror (NALM) laser with a bandwidth-limiting filter (in a nearly dispersion-free arrangement) and a short integrated nonlinear waveguide enables the realization and distinct control of multiple mode-locked pulsing regimes (e.g., Gaussian pulses, square waves, fast sinusoidal-like oscillations) with repetition rates that are variable from the fundamental (7.63 MHz) through its 205th harmonic (1.56 GHz). These dynamics are described by a newly developed and compact theoretical model, which well agrees with our experimental results. It attributes the control of emission regimes to the change of the NALM response function that is achieved by the adjustable interplay between the NALM amplification and the nonlinearity. In contrast to previous square wave emissions, we experimentally observed that an Ikeda instability was responsible for square wave generation. The presented approach enables laser systems that can be universally applied to various applications, e.g., spectroscopy, ultrafast signal processing and generation of non-classical light states.

Bibliographic Note

Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).

Citation Format(s)

Highly reconfigurable hybrid laser based on an integrated nonlinear waveguide. / AADHI, A.; KOVALEV, Anton V.; KUES, Michael; ROZTOCKI, Piotr; REIMER, Christian; ZHANG, Yanbing; WANG, Tao; LITTLE, Brent E.; CHU, Sai T.; WANG, Zhiming; MOSS, David J.; VIKTOROV, Evgeny A.; MORANDOTTI, Roberto.

In: Optics Express, Vol. 27, No. 18, 02.09.2019, p. 25251-25264.

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