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

Guo-Wei Lu ; Mats Sköld ; Pontus Johannisson (Institutionen för mikroteknologi och nanovetenskap, Fotonik) ; Jian Zhao ; Martin Sjödin (Institutionen för mikroteknologi och nanovetenskap, Fotonik) ; Henrik Sunnerud ; Mathias Westlund ; Andrew D. Ellis ; Peter Andrekson (Institutionen för mikroteknologi och nanovetenskap, Fotonik)
Optics Express (1094-4087 ). Vol. 18 (2010), 22, p. 23062-23069 .
[Artikel, refereegranskad vetenskaplig]

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.



Denna post skapades 2010-10-19. Senast ändrad 2014-09-02.
CPL Pubid: 127763

 

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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Fotonik

Ämnesområden

Fotonik

Chalmers infrastruktur