Title :
Direct conversion to sub-THz signal from 1.55-μm optical signal using photon-generated free-carriers
Author :
Shirao, Mizuki ; Yokoyama, Ryo ; Numajiri, Yuki ; Nishiyama, Nobuhiko ; Asada, Masahiro ; Arai, Shigehisa
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo
Abstract :
A novel method of direct conversion to Sub-THz or THz wave signals using photon-generated free-carriers by 1.55-mum LD signals was proposed. The signal intensity reduction of sub-THz waves was confirmed by increasing optical signal intensity.
Keywords :
electro-optical modulation; microwave photonics; semiconductor lasers; submillimetre wave generation; terahertz wave generation; THz wave signal conversion; optical modulator; optical signal intensity; photon-generated free-carriers; sub-THz wave signal conversion; wavelength 1.55 mum; Absorption; Charge carrier density; Conductivity; Frequency; Nonlinear optics; Optical attenuators; Optical fiber networks; Optical modulation; Photonic band gap; Wireless communication;
Conference_Titel :
IEEE Lasers and Electro-Optics Society, 2008. LEOS 2008. 21st Annual Meeting of the
Conference_Location :
Acapulco
Print_ISBN :
978-1-4244-1931-9
Electronic_ISBN :
978-1-4244-1932-6
DOI :
10.1109/LEOS.2008.4688568
