Sampled-grating DBR laser integrated with SOA and tandem electroabsorption modulator for chirp-control

Author

Johansson, L.A. ; Akulova, Y.A. ; Fish, G.A. ; Coldren, L.A.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of California, CA, USA

Volume

40

Issue

1

fYear

2004

Firstpage

70

Lastpage

71

Abstract

Chirp-controlled optical modulation is demonstrated using a voltage division scheme applied to a long-section phase modulator to compensate for the positive chirp of an electroabsorption modulator arranged in a tandem configuration. Both modulators are integrated with a semiconductor optical amplifier (SOA) and a sampled-grating distributed Bragg reflector (DBR) laser. The effective chirp factor can be controlled from +1 to -0.86 with less than 2 dB penalty in extinction ratio and insertion loss.

Keywords

amplitude modulation; chirp modulation; distributed Bragg reflector lasers; electro-optical modulation; electroabsorption; integrated optics; laser tuning; optical transmitters; phase modulation; semiconductor optical amplifiers; Franz-Keldysh modulators; chirp-control modulation; effective chirp factor; extinction ratio; insertion loss; integrated SOA; long-section phase modulator; sampled-grating DBR laser; tandem electroabsorption modulator; voltage division scheme; widely tunable lasers;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:20040016

Filename

1260683