Wang, F, Nong, H, Fobbe, T et al. (14 more authors) (2017) Short Terahertz Pulse Generation from a Dispersion Compensated Modelocked Semiconductor Laser. Laser and Photonics Reviews, 11 (4). 1700013. ISSN 1863-8880
Abstract
Dispersion compensation is vital for the generation of ultrashort and single cycle pulses from modelocked lasers across the electromagnetic spectrum. It is typically based on addition of an extra dispersive element to the laser cavity that introduces a chromatic dispersion opposite to that of the gain medium. To date, however, no dispersion compensation schemes have been successfully applied to terahertz (THz) quantum cascade lasers for short and stable pulse generation in the THz range. In this work, a monolithic on-chip compensation scheme is realized for a modelocked QCL, permitting THz pulses to be considerably shortened from 16ps to 4ps. This is based on the realization of a small coupled cavity resonator that acts as an ‘off resonance’ Gires-Tournois interferometer (GTI), permitting large THz spectral bandwidths to be compensated. This novel application of a GTI opens up a direct and simple route to sub-picosecond and single cycle pulses in the THz range from a compact semiconductor source.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: F. Wang, H. Nong, T. Fobbe, V. Pistore, S. Houver, S. Markmann, N. Jukam, M. Amanti, C. Sirtori, S. Moumdji, R. Colombelli, L. Li, E. Linfield, G. Davies, J. Mangeney, J. Tignon, S. Dhillon, Laser & Photonics Reviews 2017, 11, 1700013., which has been published in final form at https://doi.org/10.1002/lpor.201700013. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
Keywords: | Quantum cascade laser; Terahertz; Active mode-locking; Gires-Tournois interferometer; Short pulse generation |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Funding Information: | Funder Grant number EU - European Union 247375 Royal Society WM110032 EU - European Union GA 665158 Royal Society WM150029 |
Depositing User: | Symplectic Publications |
Date Deposited: | 14 Jul 2017 10:25 |
Last Modified: | 07 Jul 2018 00:38 |
Status: | Published |
Publisher: | Wiley - VCH Verlag GmbH & CO. KGaA |
Identification Number: | 10.1002/lpor.201700013 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:119029 |