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High Speed Optical Coherent Transmission System Using Narrowband FM Subcarrier Multiplexing

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Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 7105))

Abstract

A high speed optical coherent transmission System using Narrowband Frequency Modulation (NBFM) subcarrier multiplexing (SCM) has been introduced where the FM modulated optical signal for MPSK digital data is transmitted by a single mode fiber. At the receiver, a photodiode (PD) generates the electrical signal including N channel SCM signals and the optical intermediate frequency (IF) from the coupler. The electrical signal from the BPF output is FM demodulated and then divided into the N SCM data.

We have analyzed the variance of Gaussian noise at the FM discriminator output for four adjacent sucarrier channels which are degraded by 10.1, 12.0, and 14.5 [nW/Hz] as the subcarrier frequency is increased by 0.5 GHz, respectively. The caculation results of BERs for the M-ary PSK modulators, BPSK, QPSK, 8-PSK, and 16-PSK schemes that shows the SNR differences between the modulation schemes are 1.9, 2.1. 2.3 dB at BER = 109, as the subcarrier frequency is increased by 0.5 GHz, respectively.

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References

  1. Hui, R., Zhu, B., Huang, R., Allen, C.: Subcarrier Multiplexing for High Speed Optical Transmission. IEEE Jour. Lightwave Tech. 20(3), 417–427 (2002)

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© 2011 Springer-Verlag Berlin Heidelberg

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Kim, H.G. (2011). High Speed Optical Coherent Transmission System Using Narrowband FM Subcarrier Multiplexing. In: Kim, Th., et al. Future Generation Information Technology. FGIT 2011. Lecture Notes in Computer Science, vol 7105. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27142-7_12

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  • DOI: https://doi.org/10.1007/978-3-642-27142-7_12

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-27141-0

  • Online ISBN: 978-3-642-27142-7

  • eBook Packages: Computer ScienceComputer Science (R0)

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