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CW-THz wave generation using a multimode semiconductor laser at room temperature

Latkowski, Sylwester and Landais, Pascal and Surre, Frederic and Lynch, Stephen A. (2007) CW-THz wave generation using a multimode semiconductor laser at room temperature. In: LEOS 2007 - The 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society, 21-25 October 2007, Lake Buena Vista, FL, USA.

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Abstract

Multimode semiconductor lasers under certain DC bias conditions generate electromagnetic waves from the beating between the longitudinal lasing modes. The frequency of those waves is directly related to the free spectral range of the involved modes. Our recent experimental work is carried out on slotted Fabry-Perot lasers with mode separation of 330 GHz. The devices are at room temperature biased at 3 times the threshold current. Using a bolometer coupled to an FT-IR interferometer we are able to observe radiation at 660 GHz, in the terahertz range.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:Yes
Uncontrolled Keywords:distributed Bragg reflector lasers; semiconductor lasers; submillimetre waves;
Subjects:Physical Sciences > Lasers
Physical Sciences > Semiconductors
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Research Initiatives and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Published in:LEOS 2007 - IEEE Lasers and Electro-Optics Society Annual Meeting Conference Proceedings. . Institute of Electrical and Electronics Engineers.
Publisher:Institute of Electrical and Electronics Engineers
Official URL:http://dx.doi.org/10.1109/LEOS.2007.4382682
Copyright Information:©2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
ID Code:15448
Deposited On:08 Jul 2010 16:22 by DORAS Administrator. Last Modified 08 Jul 2010 16:22

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