Title :
Wideband and low voltage waveguide modulators with asymmetric coupled QWs beyond 40 Gb/s
Author :
Tada, Kunio ; Arakawa, Taro ; Noh, Joo-Hyong ; Suzuki, Tatsuya
Author_Institution :
Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan
Abstract :
A prerequisite for ultrafast modulators in 80 or 160 Gb/s TDM optical fiber communications will be that modulating voltages should be as low as possible. This is because the driving capability of electronic devices such as HBTs and HEMTs is rapidly decreasing at higher frequencies. A wideband wavelength range of operation is also very important for extension to DWDM systems. The Mach-Zehnder modulator with a multiple quantum well (MQW) waveguide is a promising candidate because of its low chirp and adjustable chirp modulation characteristics
Keywords :
III-V semiconductors; aluminium compounds; chirp modulation; electro-optical modulation; gallium arsenide; optical communication equipment; semiconductor quantum wells; symmetry; wavelength division multiplexing; 160 Gbit/s; 80 Gbit/s; DWDM systems; GaAs-AlGaAs; Gb/s TDM optical fiber communications; HBTs; HEMTs; MQW waveguide; Mach-Zehnder modulator; adjustable chirp modulation characteristics; asymmetric coupled QWs; driving capability; electronic devices; low chirp; modulating voltages; multiple quantum well waveguide; ultrafast modulators; wideband low voltage waveguide modulators; Frequency; HEMTs; Low voltage; MODFETs; Optical fiber communication; Optical waveguides; Quantum well devices; Time division multiplexing; Wavelength division multiplexing; Wideband;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969161
