40-Gbaud 16-QAM transmitter using tandem IQ modulators with binary driving electronic signals


We propose a novel 16-quadrature amplitude modulation (QAM) transmitter based on two cascaded IQ modulators driven by four separate binary electrical signals. The proposed 16-QAM transmitter features scalable configuration and stable performance with simple bias-control. Generation of 16-QAM signals at 40 Gbaud is experimentally demonstrated for the first time and visualized with a high speed constellation analyzer. The proposed modulator is also compared to two other schemes. We investigate the modulator bandwidth requirements and tolerance to accumulated chromatic dispersion through numerical simulations, and the minimum theoretical insertion attenuation is calculated analytically.

Publication DOI: https://doi.org/10.1364/OE.18.023062
Additional Information: © 2010 OSA This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.18.023062. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
Publication ISSN: 1094-4087
Last Modified: 27 Jun 2024 08:08
Date Deposited: 07 Jan 2013 08:18
Full Text Link: http://www.opti ... =oe-18-22-23062
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2010-10-25
Authors: Lu, Guo-Wei
Sköld, Mats
Johannisson, Pontus
Zhao, Jian A.
Sjödin, Martin
Sunnerud, Henrik
Westlund, Mathias
Ellis, Andrew (ORCID Profile 0000-0002-0417-0547)
Andrekson, Peter A.



Version: Published Version

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