Projects per year
Abstract
Actively mode-locked lasers offer varying degrees of flexibility for a wider range of applications than their passively modulated counterparts, due to their capability for electrically controlled ultrahigh repetition rate operation. Graphene based electrooptic modulators with unique advantages of broad operation bandwidth and ultrafast speed are suitable for light modulation in various optoelectronic applications. Here, an actively mode-locked laser with a graphene based electrooptic modulator is reported for the first time. The active mode-locking technique combined together with the intracavity nonlinear pulse shortening effect allows the generation of transform-limited 1.44 ps pulses with pulse energy of 844 pJ. The electrically controlled repetition rate of generated pulses, a key performance advantage of active mode-locking, is also demonstrated. These results provide a practical and effective approach for actively mode-locked lasers with broad operation bandwidth and compact footprint, which contributes a new way for applications of two-dimensional (2D) layered materials in ultrafast lasers.
Original language | English |
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Article number | 1801539 |
Journal | Advanced Functional Materials |
Volume | 28 |
Issue number | 28 |
Early online date | 1 Jan 2018 |
DOIs | |
Publication status | Published - Jul 2018 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Electrooptic materials
- Graphene
- Mode-locked lasers
- Photonics
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Dive into the research topics of 'Graphene Actively Mode-Locked Lasers'. Together they form a unique fingerprint.Projects
- 4 Finished
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Finnish Centre of Excellence in Quantum Technology
Sun, Z., Cui, X., Bai, X., Du, L., Wang, Y. & Turunen, M.
01/01/2018 → 31/12/2020
Project: Academy of Finland: Other research funding
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LAYERED 2D MATERIALS BASED THZ SPECTROSCOPY AND IMAGING
Sun, Z., Generalov, A., Das, S., Hulkko, E., Mohsen, A. & Uddin, M.
01/01/2018 → 31/12/2021
Project: Academy of Finland: Other research funding
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High-performance ultrafast mid-infrared fiber lasers for health and wellbeing applications
Sun, Z., Jussila, H., Dai, Y., Wang, Y., Salomaa, V., Turunen, M. & Yang, H.
01/10/2016 → 30/09/2018
Project: Academy of Finland: Other research funding