Scalable graphene electro-optical modulators for all-fibre pulsed lasers

Kuen Yao Lau*, Alexander Pyymaki Perros, Diao Li, Maria Kim, Zhipei Sun

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)
95 Downloads (Pure)

Abstract

Recently, graphene electro-optical modulators have emerged as a viable alternative to the conventional modulators due to their broadband operation, ultrafast responsivity, small footprint, and low energy consumption. Here, we report scalable graphene electro-optical modulators for all-fibre pulsed laser applications. An actively Q-switched all-fibre laser is demonstrated with a scalable graphene electro-optical modulator for the first time, which is different from the previously reported work that typically implemented graphene electro-optical modulators in a free-space optical system. Our electrically modulated actively Q-switched fibre laser outputs at the centre wavelength of ~1961.9 nm, the tunable repetition rate of 56.5 to 62.5 kHz, the maximum pulse energy of ~80 nJ, and the signal-to-noise ratio of ~46.6 dB. This work demonstrates that the scalable all-fibre integrated graphene electro-optical modulator approach is promising for producing pulsed fibre lasers at 2 µm with high performance and easy integration which are useful in various applications such as medical treatment, material processing, and spectroscopy. This journal is

Original languageEnglish
Pages (from-to)9873-9880
Number of pages8
JournalNanoscale
Volume13
Issue number21
DOIs
Publication statusPublished - 7 Jun 2021
MoE publication typeA1 Journal article-refereed

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  • A-Photonics

    Sun, Z. (Principal investigator), Pyymaki Perros, A. (Project Member), Lau Kuen Yao, L. (Project Member), Rajamanickam, R. (Project Member), Dai, Y. (Project Member), Du, M. (Project Member), Kim, M. (Project Member) & Hedberg, D. (Project Member)

    01/01/201931/12/2020

    Project: Business Finland: New business from research ideas (TUTLI)

  • PREIN: Photonics Research and Innovation

    Mäkelä, K. (Principal investigator)

    01/01/201931/12/2022

    Project: Academy of Finland: Other research funding

  • -: Photonics Research and Innovation

    Sun, Z. (Principal investigator), Das, S. (Project Member) & Li, D. (Project Member)

    01/01/201931/12/2022

    Project: Academy of Finland: Other research funding

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