InP-Based Comb Generator for Optical OFDM

Author

Dupuis, Nicolas ; Doerr, Christopher R. ; Zhang, Liming ; Chen, Long ; Sauer, Nick J. ; Dong, Po ; Buhl, Lawrence L. ; Ahn, Dongwahn

Author_Institution

Bell Labs., Alcatel-Lucent, Holmdel, NJ, USA

Volume

30

Issue

4

fYear

2012

Firstpage

466

Lastpage

472

Abstract

We describe in more detail a novel InP-based comb generator for optical orthogonal frequency division multiplexed (OFDM) transmission. The device integrates a Mach-Zehnder interferometer inside an amplified ring. In order to maximize the number of lines in the spectrum, the phase modulators were designed with a 3-step asymmetric quantum well structure to maximize the index change with voltage change. We demonstrate a 6-line frequency comb which is tunable over 80 nm. The linewidth of the comb is limited by only the input laser, which makes this device especially suitable for coherent optical OFDM applications.

Keywords

III-V semiconductors; OFDM modulation; indium compounds; optical modulation; 6-line frequency comb; InP; Mach-Zehnder interferometer; asymmetric quantum well structure; comb generator; input laser; optical OFDM; optical orthogonal frequency division multiplexed transmission; Generators; Integrated optics; OFDM; Optical waveguides; Phase modulation; Semiconductor optical amplifiers; Comb generator; indium phosphide; integrated optics; phase modulator;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2011.2173463

Filename

6060840