A new electroabsorption modulator with full negative chirp operation using a parallel field

Author

Wakita, K. ; Yokoi, T. ; Kojima, T.

Author_Institution

Dept. of Electr. Eng., Chubu Univ., Kasugai, Japan

fYear

2001

fDate

2001

Firstpage

151

Lastpage

154

Abstract

A parallel field structure that will overcome the previous electroabsorption modulation based on QCSE is proposed and device characteristics are simulated for high-speed, low-driving-voltage operation as well as polarization insensitivity and low insertion loss. A 3-dB bandwidth and the driving-voltage required for 20-dB extinction ratio is estimated to be over 250 GHz and less than 2V, respectively, assuming that the speed is limited by the device capacitance. It has been clear that this device can operate full negative chirp operation with low transmission loss. The superiority of this device to the previous on the allowability of incidental optical power is also discussed

Keywords

chirp modulation; electro-optical modulation; electroabsorption; high-speed optical techniques; low-power electronics; quantum confined Stark effect; quantum well devices; 2 V; 250 GHz; MQW electroabsorption modulator; capacitance; extinction ratio; high-speed low-voltage operation; insertion loss; negative chirp; optical power; parallel field; polarization insensitivity; quantum confined Stark effect; transmission loss; Bandwidth; Capacitance; Chirp modulation; Extinction ratio; High speed optical techniques; Insertion loss; Optical devices; Optical losses; Polarization; Propagation losses;

fLanguage

English

Publisher

ieee

Conference_Titel

Indium Phosphide and Related Materials, 2001. IPRM. IEEE International Conference On

Conference_Location

Nara

ISSN

1092-8669

Print_ISBN

0-7803-6700-6

Type

conf

DOI

10.1109/ICIPRM.2001.929058

Filename

929058