Impact of Mechanical Vibrations on Laser Stability and Carrier Phase Estimation in Coherent Receivers

Coherent communication systems are largely limited by the laser linewidth of the local oscillator. In addition to phase noise, large frequency deviations can occur if the laser is mechanically vibrated. The detrimental effect of the frequency instability is measured for coherent optical receivers on...

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Bibliographic Details
Published in:IEEE photonics technology letters 2010-08, Vol.22 (15), p.1114-1116
Main Authors: Kuschnerov, Maxim, Piyawanno, Kittipong, Alfiad, Mohammad S, Spinnler, Bernhard, Napoli, Antonio, Lankl, Berthold
Format: Article
Language:English
Subjects:
Algorithm design and analysis
Algorithms
Carrier phase estimation
Carriers
Coherence
coherent systems
Conferences
Fiber optics
Frequency measurement
laser
Laser noise
Laser stability
Lasers
local oscillator
Local oscillators
Optical fibers
Optical receivers
Phase estimation
Phase measurement
Phase noise
Receivers
vibration
Vibrations
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Summary:Coherent communication systems are largely limited by the laser linewidth of the local oscillator. In addition to phase noise, large frequency deviations can occur if the laser is mechanically vibrated. The detrimental effect of the frequency instability is measured for coherent optical receivers on a typical laser and numerically analyzed for quadrature phase-shift keying and 16-quadrature amplitude modulation using common feed-forward carrier phase recovery algorithms.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2010.2050472