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ABSTRACT: The authors calculate the probability density function of the Q
factor for optically amplified transmission IM-DD systems, in the
presence of a randomicity given by the polarisation mode dispersion.
Theoretical and experimental results obtained in a soliton field trial
500 km long at 40 Gbit/s show a satisfactory agreement
Electronics Letters 09/2000; · 0.96 Impact Factor
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F. Matera,
M. Settembre,
M. Tamburrini,
F. Favre,
D. Le Guen,
T. Georges, M. Henry,
G. Michaud,
P. Franco,
A. Schiffini,
M. Romagnoli,
M. Guglielmucci,
S. Cascelli
[show abstract]
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ABSTRACT: A 40-Gb/s single-channel soliton transmission was performed on a
dispersion-shifted fiber (DSF) embedded in a link connecting Rome to
Pomezia. The soliton system was based on the transmission of pulses with
orthogonal states of polarization (alternate polarizations) to limit the
impairments due to the soliton interaction. The performance of the
system operating in the field has been compared with results obtained in
the laboratory. While in the laboratory the system showed a
nearly-stable error-free transmission over 700 km, strong temporal
fluctuations of the performance have been observed in the field trial.
Numerical simulations have shown that such a degradation, and in
particular the fluctuation of the Q factor, is mainly due to a
polarization mode dispersion of the installed cables larger than that of
the fibers used in the laboratory. However, 500 km error-free
transmission was observed in the field for time interval longer than one
hour, demonstrating the potentiality of a 40 Gb/s soliton system with
alternate polarizations operating with long amplifier spacing (100 km)
without in-line control
Journal of Lightwave Technology 12/1999; · 2.78 Impact Factor
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F. Matera,
M. Settembre,
M. Tamburrini,
F. Favre,
D. Le Guen,
T. Georges, M. Henry,
G. Michaud,
P. Franco,
A. Schiffini,
M. Romagnoli,
R. Corsini,
M. Guglielmucci,
S. Cascelli
[show abstract]
[hide abstract]
ABSTRACT: 40 Gbit/s single-wavelength alternate-polarisation soliton
transmission over 500 km has been successfully demonstrated in a field
trial using dispersion-shifted fibre. Comparisons with an equivalent
laboratory trial and numerical simulations show that the main source of
impairment is polarisation mode dispersion
Electronics Letters 04/1999; · 0.96 Impact Factor
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ABSTRACT: 1.02 Tbit/s (51-wavelength each at 20 Gbit/s) dense WDM (0.4 nm
channel-spacing) soliton transmission over 1000 km of standard
step-index fiber with 100 lan (21 dB loss) amplifier spans was
successfully achieved for the first time
Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication. OFC/IOOC '99. Technical Digest; 02/1999
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F. Matera,
M. Settembre,
M. Tamburrini,
F. Favre,
D. Le Guen,
T. Georges, M. Henry,
G. Michaud,
P. Franco,
A. Schiffini,
M. Romagnoli,
R. Corsini,
M. Gugliemucci,
S. Cascelli
[show abstract]
[hide abstract]
ABSTRACT: 40-Gbit/s single-wavelength alternate polarization soliton field
experiment was performed on a dispersion-shifted fiber installed cable
500 km long. Comparison with an equivalent fiber installed in laboratory
showed that the main impairment was due to the polarization-mode
dispersion
Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication. OFC/IOOC '99. Technical Digest; 02/1999
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[show abstract]
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ABSTRACT: The authors have achieved soliton WDM transmission of 16 signals,
each modulated at 20 Gbit/s, over 1300 km of standard fibre with 100 km
spans using partial compensation of dispersion and its slope
Electronics Letters 01/1998; · 0.96 Impact Factor
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[show abstract]
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ABSTRACT: We have achieved soliton WDM transmission of 16 signals each
modulated at 20 Gbit/s over 1100 km of standard fibre with 100 km spans
using partial compensation of dispersion and its slope
Integrated Optics and Optical Fibre Communications, 11th International Conference on, and 23rd European Conference on Optical Communications (Conf. Publ. No.: 448); 10/1997
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Optics and Photonics News 05/1997; 8:50.
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[show abstract]
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ABSTRACT: 20 Gbit/s soliton transmission over standard
non-dispersion-shifted fibre with 50 km dispersion-compensated spans and
initial pre-chirping has been achieved. Error-free transmission
(BER<10<sup>10</sup>) was performed over 2200 km. At 1700 km,
operating ranges of 4.5 dB for in-line power variations and 2.7 nm for
wavelength location have been measured
Electronics Letters 04/1997; · 0.96 Impact Factor
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[show abstract]
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ABSTRACT: A straight-line single-wavelength 40 Gbit/s soliton transmission
experiment was conducted over eight spans of 100 km DS fibre without
in-line control nor local dispersion management. Q<sup>2</sup>-factors
of >17 dB were measured at 800 km for two extreme cases of dispersion
map over each amplifier span. Power margins of 3 dB at
Q<sup>2</sup>>16.2 dB (BER<10<sup>-10</sup>) were obtained over a
1 nm wavelength-range
Electronics Letters 03/1997; · 0.96 Impact Factor
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[show abstract]
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ABSTRACT: In this communication, we report a straight-line transmission
experiment at 40 Gbit/s over 800 km without any in-line soliton control
nor local dispersion management and with enhanced amplifier span to 100
km. Q factors >6.5 were measured at 800 km. Two fiber configurations
were investigated for which the chromatic dispersion was respectively
decreasing and increasing over the amplification span. The two
dispersion maps, which correspond to two extreme cases in local
fluctuations
Optical Fiber Communication. OFC 97., Conference on; 03/1997
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ABSTRACT: 20 Gbit/s transmission without power penalty over 108 km of dispersion shifted fiber is reported with a strained layer InGaAsP QW DFB laser-electroabsorption modulator. The device is integrated using a very simple approach that yields high static and dynamic performance.
Optical Communication, 1996. ECOC '96. 22nd European Conference on; 10/1996
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[show abstract]
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ABSTRACT: A straight line single wavelength 40 Gbit/s soliton transmission
experiment was conducted over five spans of 100 km DS fibre without
in-line control. The 10 ps pulse train generated at 20 GHz using an EA
modulator was encoded at 70 Gbit/s and multiplexed at 40 Gbit/s in the
polarisation and time domain. Demultiplexing from 40 to 10 Gbit/s was
performed using a polariser and an EAM successively. A BER
<10<sup>-10</sup> was obtained over >4 dB inline power variations
Electronics Letters 07/1996; · 0.96 Impact Factor
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N. Souli,
F. Devaux,
A. Ramdane,
P. Krauz,
A. Ougazzaden,
F. Huet,
M. Carre,
Y. Sorel,
J.F. Kerdiles, M. Henry,
G. Aubin,
E. Jeanney,
T. Montallant,
J. Moulu,
B. Nortier,
J.B. Thomine
[show abstract]
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ABSTRACT: We report on the integration of two InGaAsP-InGaAsP MQW electroabsorption ridge modulators and an amplifier on the same active layer. The two modulators are separated by a 500-/spl mu/m ridge waveguide optical amplifier, in order to prevent electrical crosstalk, and to compensate for optical losses. The first modulator is used as a soliton generator, and the second codes the generated pulses. The amplifier showed 8.2-dB gain for 120-mA injected current. This allowed a low fiber to fiber insertion loss of 9 dB for the tandem. We present here for the first time to our knowledge, a 20 Gbit/s operation for a tandem-amplifier device, together with transmission experiments.< >
IEEE Photonics Technology Letters 07/1995; · 2.19 Impact Factor
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ABSTRACT: Soliton transmission of a 20 Gbit/s time/polarisation multiplexed
signal over 14 Mm path in a recirculating loop with 46.3 km
amplification span has been demonstrated using the sliding-filter
soliton control technique. Demultiplexing was achieved by using a
polarisation-insensitive electroabsorption modulator
Electronics Letters 03/1995; · 0.96 Impact Factor
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ABSTRACT: We report on a MQW electroabsorption modulator with tensile-strained wells. The device transmission is shown to be fully polarization insensitive, i.e. both in amplitude and phase. The modulation efficiency is over 20 GHz/V (bandwidth higher than 20 GHz and 1 V drive voltage) which is the highest figure of merit reported for any kind of polarization insensitive modulator. Full polarization independence is further demonstrated by 2.5 Gb/s transmission at 1.55 /spl mu/m over 475 km of standard fiber without penalty at 10/sup -9/ BER whatever the polarization.< >
IEEE Photonics Technology Letters 11/1994; · 2.19 Impact Factor
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ABSTRACT: Transmission over 109 km of dispersion shifted fibre is
successfully accomplished without penalty and errors at 20 Gbit/s rate
using a 10 well 1.5 μm high-speed MQW DFB laser biased at 24 mA DC
with a low modulation voltage swing of 1.5 V peak to peak
Electronics Letters 04/1994; · 0.96 Impact Factor
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[show abstract]
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ABSTRACT: The authors have fabricated a ridge waveguide electroabsorption modulator based on the quantum-confined Stark effect in InGaAsP/InGaAsP multiple quantum wells. The drive voltage for 12-dB extinction ratio is 1.2 V, and the frequency response is flat within 2 dB from DC to 20 GHz. Operation at 20 Gb/s is reported. Extensive data concerning the parasitic phase modulation (chirping) are obtained as a function of applied bias acid operating wavelength.< >
IEEE Photonics Technology Letters 12/1993; · 2.19 Impact Factor
