Houver, S, Cavalié, P, St-Jean, MR et al. (9 more authors) (2015) Optical sideband generation up to room temperature with mid-infrared quantum cascade lasers. Optics Express, 23 (4). 4012 - 4020. ISSN 1094-4087
Abstract
Mid-infrared (MIR) sideband generation on a near infrared (NIR) optical carrier is demonstrated within a quantum cascade laser (QCL). By employing an externally injected NIR beam, ENIR, that is resonant with the interband transitions of the quantum wells in the QCL, the nonlinear susceptibility is enhanced, leading to both frequency mixing and sideband generation. A GaAs-based MIR QCL (EQCL = 135 meV) with an aluminum-reinforced waveguide was utilized to overlap the NIR and MIR modes with the optical nonlinearity of the active region. The resulting difference sideband (ENIR – EQCL) shows a resonant behavior as a function of NIR pump wavelength and a maximum second order nonlinear susceptibility, χ(2), of ~1 nm/V was obtained. Further, the sideband intensity showed little dependence with the operating temperature of the QCL, allowing sideband generation to be realized at room temperature.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. |
Keywords: | Lasers and laser optics; Nonlinear wave mixing; Semiconductor lasers; quantum cascade |
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: | 30 Apr 2015 15:23 |
Last Modified: | 15 Jan 2018 17:39 |
Published Version: | http://dx.doi.org/10.1364/OE.23.004012 |
Status: | Published |
Publisher: | Optical Society of America |
Identification Number: | 10.1364/OE.23.004012 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:83504 |