Projects per year
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 language | English |
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Pages (from-to) | 9873-9880 |
Number of pages | 8 |
Journal | Nanoscale |
Volume | 13 |
Issue number | 21 |
DOIs | |
Publication status | Published - 7 Jun 2021 |
MoE publication type | A1 Journal article-refereed |
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Dive into the research topics of 'Scalable graphene electro-optical modulators for all-fibre pulsed lasers'. Together they form a unique fingerprint.Projects
- 3 Finished
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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)
01/01/2019 → 31/12/2020
Project: Business Finland: New business from research ideas (TUTLI)
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PREIN: Photonics Research and Innovation
Mäkelä, K. (Principal investigator)
01/01/2019 → 31/12/2022
Project: Academy of Finland: Other research funding
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-: Photonics Research and Innovation
Sun, Z. (Principal investigator), Das, S. (Project Member) & Li, D. (Project Member)
01/01/2019 → 31/12/2022
Project: Academy of Finland: Other research funding