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Crosstalk penalty in a two-channel ASK heterodyne detection system with non-negligible laser line width

Crosstalk penalty in a two-channel ASK heterodyne detection system with non-negligible laser line width

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© The Institution of Electrical Engineers
Published

Crosstalk penalties as a function of channel spacing were measured in a two-channel ASK heterodyne system using 1·55μm DFB lasers. For an IF linewidth/bit rate ratio of 0.5, the channel spacing in the IF domain must be greater than 13 times the bit rate for negligible crosstalk penalty.

Inspec keywords: intermodulation; amplitude modulation; crosstalk; demodulation; optical communication; optical fibres

Other keywords: DFB lasers; demodulation; crosstalk penalty; optical fibre communication; IF domain; semiconductor laser; two-channel ASK heterodyne detection system; 1.55 micron; channel spacing; nonnegligible laser linewidth

Subjects: Electromagnetic compatibility and interference; Modulation and coding methods; Optical communication

References

    1. 1)
      • Park, Y.K., Granlund, S.W., Kuo, C.Y., Dixon, M., Cline, T.W., Smith, R.W., Dutta, N.K.: `Crosstalk penalty in a two-channel ASK heterodyne detection system', Paper WH1, CLEO '87, April 1987, MD.
    2. 2)
      • I. Garrett , G. Jacobsen . Theoretical analysis of heterodyned optical receivers for transmission systems using (semiconductor) lasers with non-negligible linewidth. J. Lightwave Technol. , 323 - 334
    3. 3)
      • B. Glance , K. Pollock , C.A. Burrus , B.L. Kasper , G. Elsenstein , L.W. Stulz . Densely spaced WDM coherent optical star network. Electron. Lett. , 875 - 876
    4. 4)
      • Park, Y.K., Bergstein, S.S., Tench, R.E., Smith, R.W., Korotky, S.K., Burns, K.J.: `Crosstalk and prefiltering in a two-channel ASK heterodyne detection system without the effect of laser phase noise', Paper PDP-13, OFC/IOOC '87, 1987, Postdeadline.
    5. 5)
      • Kazovsky, L.C.: `Multichannel coherent optical communications systems', Paper TUG, OFC/IOOC '87, January 1987, Reno, NV.
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