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

Volume

1

fYear

2001

fDate

2001

Firstpage

38

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE

Conference_Location

San Diego, CA

ISSN

1092-8081

Print_ISBN

0-7803-7105-4

Type

conf

DOI

10.1109/LEOS.2001.969161

Filename

969161