Field demonstration of coherent WDM with a fibre amplifier repeater, for transparent optical network applications

A series of field experiments performed with two-wavelength transmissions at 622 Mb/s over 200-km of installed single-mode fiber using a diode-pumped erbium-doped fiber amplifier repeater are described. Both differential phase-shift keying (DPSK) modulation and frequency-shift keying (FSK) modulatio...

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Bibliographic Details
Main Authors: Brain, M.C., Creaner, M.J., Steele, R.C., Spirit, D., Walker, N.G., Walker, G.R., Mellis, J., Al-Chalabi, S., Hale, W.B., Sturgess, I.C.C., Rutherford, M., Trivett, D.
Format: Conference Proceeding
Language:English
Subjects:
Differential quadrature phase shift keying
Diodes
Frequency modulation
Frequency shift keying
Optical fiber amplifiers
Optical fiber polarization
Optical noise
Phase modulation
Repeaters
Wavelength division multiplexing
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Summary:A series of field experiments performed with two-wavelength transmissions at 622 Mb/s over 200-km of installed single-mode fiber using a diode-pumped erbium-doped fiber amplifier repeater are described. Both differential phase-shift keying (DPSK) modulation and frequency-shift keying (FSK) modulation were employed, along with two implementations of automated endless polarization control. In a further field experiment, a power budget of 64 dB was demonstrated in the form of repeaterless DPSK transmission at 622 Mb/s over 264 km of installed fiber. The use of such a large power budget to accommodate the sharing of power between many wavelength channels and the accumulation of spontaneous emission noise through cascaded optical amplifier repeaters is discussed.< >
DOI:10.1109/GLOCOM.1990.116611