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Optical QPSK transmission system with novel digital receiver concept

Optical QPSK transmission system with novel digital receiver concept

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© The Institution of Electrical Engineers
Published

A coherent optical QPSK transmission system with a receiver concept based on so called intradyne reception is described. The realisation of this concept comprises a novel completely digital synchronous demodulation which makes it suitable for a subscriber front end in a coherent multichannel system. The principles of operation and measurement results of a 100Mbit/s transmission are presented.

Inspec keywords: optical communication equipment; receivers; digital communication systems; phase shift keying

Other keywords: digital receiver concept; measurement results; digital synchronous demodulation; 100 Mbit/s; subscriber front end; coherent multichannel system; intradyne reception; operation; coherent optical QPSK transmission system

Subjects: Modulation and coding methods; Optical communication

References

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      • G. Nicholson , T.D. Stephens . Performance analysis of coherent optical phase diversity receivers with DPSK modulation. J. Lightwave Technol. , 2 , 393 - 399
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      • L.G. Kazovsky . Phase- and polarization-diversity coherent optical techniques. J. Lightwave Technol. , 2 , 279 - 292
    3. 3)
      • Derr, F.: `Optische Übertragungssysteme mit quaternärer Phasen-modulation und Überlagerungsempfang', 1991, Dissertation, Technische Universität Munchen.
    4. 4)
      • F. Derr . Optical QPSK homodyne transmission of 280 Mbit/s. Electron. Lett. , 6 , 401 - 403
    5. 5)
      • F. Derr . Comparison of electrical and optical BPSK and QPSK systems. J. Opt. Commun. , 4 , 127 - 131
    6. 6)
      • S. Benedetto , E. Biglieri , V. Castellani . (1987) , Digital transmission theory.
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