Frequency Estimation and Compensation for Coherent QPSK Transmission with DFB Lasers

Sebastian Hoffmann,Timo Pfau,Olaf Adamczyk,Christian Wördehoff,Ralf Peveling,Mario Porrmann,Reinhold Noe,Suhas Bhandare

Frequency Estimation and Compensation for Coherent QPSK Transmission with DFB Lasers

2008

Sebastian Hoffmann
Timo Pfau
Olaf Adamczyk
Christian Wördehoff
Ralf Peveling
Mario Porrmann
Reinhold Noe
Suhas Bhandare

We present a hardware-efficient combined frequency and phase estimator. It is capable of tracking phase noise of 10 GBaud optical QPSK transmission systems with DFB lasers and frequency mismatch up to 0.8 GHz.

Keywords:

Signal processing
Laser
Phase noise
Estimator
Transmission system
Fourier transform
Electronic engineering
Physics
Transmission (mechanics)
Phase-shift keying
Optics

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