Continuous wave THz generation based on a dual-frequency laser and a LTG - InGaAs photomixer
| Autor: | R. Czarny, S. Bansropun, Daniel Dolfi, J-F. Lampin, Michel Krakowski, Mehdi Alouini, J.L. Doualan, R. Moncorge, Xavier Marcadet |
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| Přispěvatelé: | Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF) |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Spiral antenna
Materials science business.industry Terahertz radiation 02 engineering and technology Laser 01 natural sciences 7. Clean energy law.invention Gallium arsenide 010309 optics Photomixing chemistry.chemical_compound 020210 optoelectronics & photonics Optics chemistry law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Continuous wave Optoelectronics Laser power scaling business Diode |
| Zdroj: | Proceedings of the 2006 International Topical Meeting on Microwaves Photonics International Topical Meeting on Microwaves Photonics International Topical Meeting on Microwaves Photonics, 2006, France. pp.290-292, ⟨10.1109/MWP.2006.346534⟩ |
| Popis: | We demonstrate a high-spectral-purity continuous-wave terahertz source, using a diode pumped Yb3+:CaF2 dual frequency laser. THz radiation is generated by photomixing the two frequencies in a low-temperature grown In. 23Ga. 77As photoconductor, doped with Be, and loading a spiral antenna. The frequency difference between the two optical modes is tuneable by step from d. c. to 2 THz. A maximum laser power of 215 mW CW has been obtained with a beatnote-linewidth narrower than 30 kHz. Measurements show a tuneable THz emission with a maximum output power in the order of few tens nW. |
| Databáze: | OpenAIRE |
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