Title :
Generation and propagation of Sub-Terahertz pulse signal using waveguide integrated InP/InGaAs uni-traveling-carrier photodiode
Author :
Ito, Hiroshi ; Yamamoto, Hiroshi ; Furuta, Tomofumi ; Ishibashi, Takayuki
Author_Institution :
Center for Natural Sci., Kitasato Univ., Sagamihara, Japan
Abstract :
We investigated the waveforms of a pico-second pulse signal propagating through a coplanar waveguide fabricated on an InP substrate. Although the pulse profile was asymmetrically modified and the bandwidth was degraded as the pulse propagated, higher frequency Fourier components remained considerably. This demonstrates the waveguide integrated UTC-PD´s potential as a THz-TDS device operating at 1.55 ¿m.
Keywords :
III-V semiconductors; coplanar waveguides; gallium arsenide; indium compounds; light propagation; optical pulse generation; photodiodes; terahertz wave generation; InP-InGaAs; coplanar waveguide fabricated; frequency Fourier components; pico-second pulse signal propagating; size 1.55 mum; sub-terahertz pulse signal generation; sub-terahertz pulse signal propagation; waveguide integrated uni-traveling-carrier photodiode; Bandwidth; Coplanar waveguides; Frequency; Indium gallium arsenide; Indium phosphide; Optical waveguides; Photodiodes; Pulse generation; Pulse measurements; Signal generators;
Conference_Titel :
Photonics Society Winter Topicals Meeting Series (WTM), 2010 IEEE
Conference_Location :
Majorca
Print_ISBN :
978-1-4244-5240-8
Electronic_ISBN :
978-1-4244-5241-5
DOI :
10.1109/PHOTWTM.2010.5421972
