Integrated electroabsorption modulator/DBR laser linearized by RF current modulation

Author

Wilson, G.C. ; Wood, T.H. ; Koren, U.

Author_Institution

Crawford Hill Lab., AT&T Bell Labs., Holmdel, NJ, USA

Volume

7

Issue

10

fYear

1995

Firstpage

1154

Lastpage

1156

Abstract

We measure the two-tone intermodulation distortion of an electroabsorption modulator integrated with a DBR laser. Driving the modulator with an ac current yields a significant improvement in linearity over conventional voltage modulation at RF frequencies up to 10 MHz with more than 13 dBc reduction in the minimum distortion values at 0.5 MHz. High-frequency performance is presently limited by the capacitance loading the current drive.<>

Keywords

cable television; distributed Bragg reflector lasers; electro-optical modulation; electroabsorption; integrated optics; intermodulation distortion; semiconductor lasers; 0.5 to 10 MHz; 1.55 mum; AC current driving; CATV systems; DBR laser; RF current modulation linearization; RF drive; high-frequency performance; integrated electroabsorption modulator; low chirp analog optical source; minimum distortion values; optical modulation depth; two-tone intermodulation distortion; Capacitance; Chirp modulation; Distortion measurement; Distributed Bragg reflectors; Frequency modulation; Intermodulation distortion; Laser noise; Linearity; Radio frequency; Voltage;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.466574

Filename

466574