Bidirectional 2 Mbit/s transmission over a single fibre using electrical echo cancellation

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Bidirectional 2 Mbit/s transmission over a single fibre using electrical echo cancellation

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© The Institution of Electrical Engineers
Published

Bidirectional transmission over a single fibre using directional couplers and analogue echo cancellation is demonstrated. The implemented echo canceller suppresses crosstalk due to reflections from the local connector and coupler by 11 dB, i.e. it extends the transmission distance by up to 10 km (at 1.3 μm).

Inspec keywords: echo suppression; digital communication systems; crosstalk; optical links; optical fibres

Other keywords: directional couplers; single optical fibre arrangement; full-duplex type; 1.3 micron wavelength; 2 Mbit/s; nonadaptive analogue canceller; crosstalk suppression; optical links; electrical echo cancellation; bidirectional transmission

Subjects: Fibre optics; Optical communication; Electromagnetic compatibility and interference

References

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      • N. Holte , S. Stueflotten . A new digital echo canceller for two-wire subscriber lines. IEEE Trans. , 1573 - 1581
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      • K.J. Kosman . How a single-fibre optical link carries two-way data flow. Electronics
    3. 3)
      • Stueflotten, S.: `Full-duplex transmission over a single fibre using adaptive digital echo cancellation', Proceedings of 8th European conference on optical communication, 1982, , p. 435–438.
    4. 4)
      • Ichida, T., Tsutsumi, T., Tsujimoto, Y., Serizawa, H., Hattori, K., Tanaka, T., Souda, H.: `Bidirectional video transmission system using a single optical fibre', Proceedings of 5th European conference on optical communication, 1979, , p. 20.3-1–20.3-4.
    5. 5)
      • R.D. Hall , R.A. Betts , J.P. Moss . Bidirectional transmission over 11 km of single-mode optical fibre at 34 Mbit/s using 1.3 μm LEDs and directional couplers. Electron. Lett. , 628 - 629
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