Výsledky vyhledávání - Telefonica

A novel dense-WDM optically repeated transmission system in the zero-dispersion region employing bi-directional USCA, FWM induced conjugate light filtering and a bi-directional optical amplifier Autor Sato, T., Horiguchi, T.

“…A novel dense-WDM optically repeated transmission system in the zero-dispersion region is presented. Bi-directional unequally spaced channel allocation…”
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Evaluation of dispersive waves in soliton pulses generated from a Mach-Zehnder modulator and a single mode fiber Autor Toda, H., Yamaguchi, N., Shiozaki, T., Kodama, Y., Hasegawa, A.

“…We evaluated dispersive wave energy included in a soliton pulse generated from a Mach-Zehnder modulator and a single mode fiber. When pulse repetition is 10…”
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Strain and temperature characteristics of Brillouin spectra in optical fibers for distributed sensing techniques Autor Kurashima, T., Horiguchi, T., Ohno, H., Izumita, H.

“…Brillouin spectra along optical fibers were measured as a function of strain and temperature using an optical coherent detection method. The characteristics…”
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Wavelength selectable photonic transport system applicable to unequal channel spacing Autor Kawai, T., Teshima, M., Yasaka, H., Kobayashi, M., Koga, M.

“…A photonic transport system with optoelectronic wavelength converter applicable to unequal channel spacing is demonstrated. A compact 8/spl times/8 wavelength…”
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Transmission of 2-ps optical pulses over 40-km standard fiber using midspan optical phase conjugation in semiconductor optical amplifiers Autor Kikuchi, K., Matsuura, K.

“…We demonstrate trasmission of 2-ps optical pulses at 1550 nm over 40 km of standard fiber by employing midspan optical phase conjugation in semiconductor…”
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An experimental optical packet synchroniser with 100 ns range and 200 ps resolution Autor Zucchelli, L., Di Bella, D., Fornuto, G., Gambinl, P., Re, D., Delorme, F., Kraehenbuehl, R., Meichior, H.

“…An experimental optical synchroniser for packet switched networks is presented; the system can recover time misalignments up to 105.6 ns exploiting switchable…”
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A low threshold and narrow-beam divergence n-type modulation-doped strained MQW laser array for parallel optical interconnection Autor Nakahara, K., Taniwatari, T., Haga, T., Toyonaka, T., Uomi, K.

“…It is experimentally demonstrated that low threshold current and narrow beam divergence are achieved in an n-type modulation-doped MQW laser with a laterally…”
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Dispersion compensation using mid-span spectral inversion without frequency shift Autor Corchia, A., Antonini, C., D'Ottavi, A., Mecozzi, A., Martelli, F., Spano, P., Guekos, G., Dall'Ara, R.

“…We report the first system demonstration of dispersion compensation using mid-span spectral inversion without frequency shift. By a two-pump four wave mixing…”
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Phase distribution measurement of fibre Bragg gratings with white light interferometry Autor Petermann, I., Sahlgren, B., Skaar, J., Fonjallaz, P.-Y., Stubbe, R.

“…A white light interferometer, interrogating fibre Bragg gratings scanning simultaneously at two positions, has been developed to measure the phase and the…”
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Arrayed-waveguide grating passband flattening by combined phase and amplitude apodisation Autor Parker, M.C., Farjady, F., Walker, S.D.

“…We describe a novel method for arrayed-waveguide grating passband flattening based on complex aperture synthesis techniques. Typical device simulations show…”
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Nonlinear frequency shifting of optical NRZ pulses induced by electrostriction in fibers Autor Fellegara, A., Wabnitz, S.

“…The electrostrictive nonlinearity in optical fibers leads to cross-phase modulation between the pulses of a periodical train. First measurements of the…”
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A 2.56 Tb/s throughput packet/cell-based optical switch-fabric demonstrator Autor Araki, S., Takahashi, S., Maeno, Y., Suemura, Y., Tajima, A., Takahashi, H., Matsuda, K., Tamanuki, T., Dohmae, S., Henmi, N.

“…A packet/cell-based optical switch-fabric demonstrator has been successfully developed that is upgradable to 2.56 Tb/s throughput. The number of optical…”
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Polarization-independent low crosstalk polymeric AWG-based tunable filter Autor Toyoda, S., Kaneko, A., Ooba, N., Hikita, M., Yamada, H., Kurihara, T., Okamoto, K., Imamura, S.

“…A polarization-independent polymeric thermo-optic tunable filter is realized with <-35 dB crosstalk, <3 dB insertion loss, and a 9-nm tuning range using…”
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Investigation of the limitations of WDM typical terrestrial transmissions over NZDSF and SMF Autor Bertaina, A., Bigo, S., Chbat, M.W.

“…WDM transmission limitations at 10Gbit/s over NZDSF are analyzed numerically on uncompensated and dispersion-managed links. The results are then compared to…”
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Femto- and picosecond pulse generation from a gain-switched laser diode by means of dispersion-imbalanced fibre loop Autor Khrushchev, I.Y., White, I.H., Penty, R.V.

“…The generation of high-quality femtosecond and picosecond pulses from a directly-modulated DFB laser diode is demonstrated for the first time in a novel scheme…”
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Analysis of fibre background loss influence on EDFA gain dynamics Autor Mazzali, C., Fragnito, H.L.

“…We observe a non-monotonic transient response of erbium doped fibre amplifiers operating near transparency condition and demonstrate, by experiments and…”
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Tolerance for optical coherent crosstalk of a novel Manchester-code receiver Autor Yamada, Y., Shibata, Y., Okugawa, T., Habara, K.

“…We present a novel differential receiver, that enables the realisation of large scale optical networks. We confirm its sensitivity of -35.6 dBm and its…”
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Cascadable MZI all-optical switch with separate ports for data- and control-signals Autor Leuthold, J., Besse, P.A., Gamper, E., Dulk, M., Vogt, W., Melchior, H.

“…Demonstration of a new all-optical space switch, with separate in- and output ports for the data- and control-signal. At 10 GHz the crosstalk between…”
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High usage optical access architecture featuring coarse space-wavelength routing Autor Farjady, F., Parker, M.C., Walker, S.D.

“…A wavelength-routed architecture is described, accessing 576 customers bi-directionally with multi-Gb/s data, and utilising only 24 wavelengths separated by…”
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Design and optimisation of sampled grating DBR lasers for dense WDM networks Autor Robbins, D.J., Whitbread, N.D., Williams, P.J., Rawsthorne, J.R.

“…The optimisation of sampled grating (SG) DBR lasers for operation on the ITU-T frequency grid will be described. Particular attention will be paid to the…”
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