Improving the Modulation Bandwidth in Semiconductor Lasers by Passive Feedback

Author

Radziunas, Mindaugas ; Glitzky, Annegret ; Bandelow, Uwe ; Wolfrum, Matthias ; Troppenz, Ute ; Kreissl, Jochen ; Rehbein, Wolfgang

Author_Institution

Weierstrass- Inst. fur Angewandte Anal. und Stochastik, Berlin

Volume

13

Issue

1

fYear

2007

Firstpage

136

Lastpage

142

Abstract

We explore the concept of passive-feedback lasers (PFLs) for direct signal modulation at 40 Gb/s. Based on numerical simulation and bifurcation analysis, we explain the main mechanisms in these devices that are crucial for modulation at high speed. The predicted effects are demonstrated experimentally by means of correspondingly designed devices. In particular, a significant improvement of the modulation bandwidth at low-injection currents can be demonstrated

Keywords

bifurcation; laser feedback; optical modulation; semiconductor lasers; bifurcation; injection current; modulation bandwidth; passive feedback; semiconductor lasers; Bandwidth; Distributed feedback devices; Laser feedback; Laser modes; Laser theory; Optical feedback; Optical transmitters; Resonance; Resonant frequency; Semiconductor lasers; Damping; direct modulation; eye diagram; large signal response; modulation bandwidth; passive feedback; semiconductor laser; small signal response;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/JSTQE.2006.885332

Filename

4084546