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Terahertz wave generation from a dc-biased multimode laser

Latkowski, Sylwester ORCID: 0000-0003-4464-4097, Surre, Frederic and Landais, Pascal ORCID: 0000-0002-4807-0695 (2008) Terahertz wave generation from a dc-biased multimode laser. Applied Physics Letters, 92 (8). pp. 1-3. ISSN 0003-6951

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Abstract

We present results achieved in the generation of terahertz wave by a semiconductor laser. It is a Fabry–Pérot based device with shallow grooves implemented on its p-side to engineer the longitudinal mode spectrum. The laser is dc-biased and temperature controlled at 298 K. The main two modes are separated by 3 nm at 1550 nm with a side-mode-suppression ratio of 25 dB. Using a frequency resolved optical gating, evidence of mode beating at 373 GHz is observed. With a bolometer interfaced to a Fourier transform interferometer, the second harmonic signal is measured at 690 GHz.

Item Type:Article (Published)
Refereed:Yes
Subjects:Engineering > Optical communication
Physical Sciences > Lasers
Physical Sciences > Photonics
Physical Sciences > Semiconductors
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Publisher:American Institute of Physics
Official URL:http://dx.doi.org/10.1063/1.2884525
Copyright Information:© 2008 American Institute of Physics
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:SFI Research Frontier programme grant no. 05/RFP/ENG0040
ID Code:24223
Deposited On:19 Feb 2020 14:54 by Pascal Landais . Last Modified 31 Jul 2020 13:45

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