Enhanced Tolerance to Phase Distortion Due to Setting Errors in a DxPSK Modulator by Using Data-Aided Phase Noise Estimation Algorithm

The bit-error-rate performance of a multilevel phase-shift-keying (PSK) signal can be easily degraded by a slight phase distortion induced by the setting errors of the modulator such as the offsets of bias voltages. To solve this problem, we examine the possibility of using the data-aided phase nois...

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Bibliographic Details
Published in:IEEE photonics technology letters 2009-12, Vol.21 (24), p.1846-1848
Main Authors: Takushima, Y., Hyeon Yeong Choi, Chung, Y.C.
Format: Article
Language:English
Subjects:
Algorithms
Delay estimation
Differential phase-shift keying (DPSK)
Errors
Modulators
Multilevel
Noise
Optical distortion
optical fiber communication
Optical noise
optical phase modulation
Optical receivers
Optical sensors
Phase distortion
Phase estimation
Phase modulation
Phase noise
Phase shift keying
Tolerances
Voltage
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Summary:The bit-error-rate performance of a multilevel phase-shift-keying (PSK) signal can be easily degraded by a slight phase distortion induced by the setting errors of the modulator such as the offsets of bias voltages. To solve this problem, we examine the possibility of using the data-aided phase noise estimation (DAPNE) algorithm, which has been originally proposed for the reduction of differential phase noise. The experimental results show that DAPNE can enhance the tolerance to the setting errors of differential quadrature PSK and 8-ary PSK modulators.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2009.2034864