All-Optical Phase Quantization with High Accuracy Based on a Multiwave Interference Phase Sensitive Amplifier

A scheme of all-optical multilevel phase quantization with high accuracy based on multiwave interference is proposed. The influences of the amplitude ratios of the conjugate (N - 1)th and (N + 1)th harmonics to the signal on phase quantization accuracy are researched. The characteristics of the phas...

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Bibliographic Details
Published in:IEEE photonics journal 2017-06, Vol.9 (3), p.1-8
Main Authors: Wang, Hongxiang, He, Chaojie, Li, Gen, Ji, Yuefeng
Format: Article
Language:English
Subjects:
Accuracy
All-optical phase quantization
Amplification
Constellation diagram
Harmonic analysis
Harmonics
high accuracy
Interference
Measurement
multi-wave interference
Multilevel
Nonlinear optics
Optical fiber amplifiers
phase-sensitive amplifier
Power harmonic filters
Quadrature phase shift keying
Quantization (signal)
Regeneration
Simulation
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Summary:A scheme of all-optical multilevel phase quantization with high accuracy based on multiwave interference is proposed. The influences of the amplitude ratios of the conjugate (N - 1)th and (N + 1)th harmonics to the signal on phase quantization accuracy are researched. The characteristics of the phase quantization output with the amplitude ratios variation are discovered. By using the proposed scheme, the output phase is more concentrated than that of the traditional method for multilevel phase quantization. The simulations show the effectiveness of the scheme for the three levels quantization and the application of four levels quantization to the quadrature phase shift keying signal regeneration.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2017.2703812