Wang, F, Nong, H, Fobbe, T et al. (14 more authors) (2017) Short THz pulse generation from a dispersion compensated modelocked quantum cascade laser. In: International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. IRMMW-THz 2017, 27 Aug - 01 Sep 2017, Cancun, Mexico. IEEE ISBN 978-1-5090-6050-4
Abstract
Dispersion compensation is vital for the generation of ultrashort and single cycle pulses from modelocked lasers across the electromagnetic spectrum. However, no such scheme have been successfully applied to terahertz (THz) quantum cascade lasers (QCL) for short and stable pulse generation in the THz range. Here we show a monolithic on-chip compensation scheme 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.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2017, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Keywords: | Quantum cascade lasers, Optical pulse generation, Cavity resonators, Laser mode locking, Vertical cavity surface emitting lasers, Bandwidth |
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) |
Depositing User: | Symplectic Publications |
Date Deposited: | 18 Dec 2017 12:42 |
Last Modified: | 15 Jan 2018 20:28 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/IRMMW-THz.2017.8067123 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:125235 |