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Investigation on the origin of terahertz waves generated by dc-biased multimode semiconductor lasers at room temperature

Latkowski, Sylwester and Surre, Frederic and Maldonado-Basilio, Ramon and Landais, Pascal (2008) Investigation on the origin of terahertz waves generated by dc-biased multimode semiconductor lasers at room temperature. Applied Physics Letters, 93 (24). ISSN 0003-6951

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Abstract

A technique to measure a terahertz wave generated by spectrum tailored Fabry–Pérot lasers (FP) is assessed. A dc-biased and 25 °C temperature controlled FP is probed by a continuous wave signal, tuned at 20 nm away from its lasing modes. With a 0.02 nm resolution optical spectrum analyzer (OSA), the terahertz generated signal frequency is measured from the interval between the probe and its side-band modulations. The terahertz waves emitted by these FPs are measured at 370±5 GHz and at 1.157±0.005 THz, respectively, within a precision set by our OSA. The origin of the terahertz wave is due to passive mode-locked through intracavity four-wave-mixing processes.

Item Type:Article (Published)
Refereed:Yes
Subjects:Engineering > Optical communication
Physical Sciences > Optoelectronics
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)
Publisher:American Institute of Physics
Official URL:http://dx.doi.org/10.1063/1.3050455
Copyright Information:©2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
ID Code:14946
Deposited On:15 Oct 2009 16:08 by Pascal Landais. Last Modified 15 Oct 2009 16:12

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