搜索结果: 121-135 共查到“光学工程 Modulation”相关记录144条 . 查询时间(0.024 秒)
Lightpath Labeling Technique for NRZ-DPSK Modulation Format
Lightpath Labeling Technique NRZ-DPSK Modulation Format
2008/8/4
We successfully demonstrate a digital lightpath labeling technique, LightLabel, for DPSK. Two DPSK modulation schemes and OOK are compared experimentally. The technique offers cost-effective lightpath...
Improved EDC Performance for Different Duobinary Modulation Formats with Optical Filtering
EDC Performance Different Duobinary Modulation Formats Optical Filtering
2008/8/4
Nonlinear EDC including nonlinear Volterra based equalizer and MLSE are investigated and compared for different duobinary formats with optical filtering at 43Gb/s data rate.
Subpicosecond 40 GHz Pulse Generation Using Simultaneous Two-Arm Modulation of a Mach-Zehnder Intensity Modulator
Subpicosecond wo-Arm Modulation Mach-Zehnder Intensity Modulator
2008/8/4
0.6 ps long-term stable, high extinction-ratio optical pulse generation at 40 GHz has been demonstrated based on simultaneous two-arm modulation of a LN Mach-Zehnder modulator.
Improvement of the transmission of chalcogenide photonic crystal fibres:observation of self phase modulation spectral broadening
chalcogenide photonic crystal fibres phase modulation spectral broadening
2008/8/4
We present a chalcogenide photonic crystal fibre design with a lowest attenuation of 3dB/m at 1,55 μm. We observe, for the first time, self phase modulation spectral broadening.
A Novel Re-modulation Method in a WDM-PON with Enhanced Extinction Ratio
Method WDM-PON Extinction
2008/8/3
We propose and experimentally demonstrate a novel coding scheme for a WDM-PON system using ASK/DPSK re-modulation corresponding to downstream/upstream signals respectively to enhance the toleration of...
Broadband and Enhanced Picosecond Cross-phase Modulation in InGaAs /AlAsSb Quantum Well Waveguides G.W. Cong, R. Akimoto, M. Nagase, T. Mozume, T. Hasama, and H. Is
Broadband Enhanced Picosecond Cross-phase Modulation Quantum Well Waveguides
2008/8/3
Ultrafast cross-phase modulation induced by intersubband excitation was ~2-3times enhanced when tuning probe wavelength from 1640 to 1360nm, showing a ~300nm broadband. Interband dispersion model expl...
Capacity optimisation for optical links using DMT modulation, an application to POF
Capacity optimisation optical links DMT modulation POF
2008/8/3
The Levin-Campello algorithm optimises the capacity of communication links using DMT/OFDM modulation. We demonstrate its application to optical communications, transmitting 1Gbps through 50m 1mm step ...
A statistical assessment of the nonlinear cross-polarization modulation is presented. The resulting distribution of the states of polarization is derived while accounting for various properties of the...
10Gbit/s transmission over 2.5GHz bandwidth by direct modulation of commercial VCSEL and multi-mode FP lasers using Adaptively Modulated Optical OFDM modulation for Passive Optical Network
transmission bandwidth direct modulation multi-mode FP lasers Adaptively Modulated Optical OFDM modulation Passive Optical Network
2008/8/3
We experimentally demonstrate 10Gbit/s transmission over 2.5GHz bandwidth by direct modulation of commercial VCSEL and FP lasers using AMOOFDM modulation. A comparison between the two transmitters is ...
Symbol Rate Dependency of XPM-induced Phase Noise Penalty on QPSK-based Modulation Formats
Symbol Rate Dependency XPM-induced Phase QPSK-based Modulation
2008/7/31
Systematic investigation of XPM impact on QPSK signals reveals that higher symbol rates are advantageous for reducing both intra-span generation and multi-span accumulation of phase noise.
All-Optical Sampling Using Cross-Absorption Modulation in Electroabsorption Modulator for Optical Performance Monitor
All-Optical Sampling Cross-Absorption Modulation Electroabsorption Modulator Optical Performance Monitor
2008/7/31
All-optical sampling is experimentally demonstrated using cross-absorption modulation in an electroabsorption mod-ulator. A clear eye opening with 7-ps temporal resolution was obtained by optimizing t...
Polarization Insensitive All-Optical Retiming Based on Cross-Phase Modulation and Offset Filtering with Distributed Raman Amplification
Polarization Insensitive All-Optical Retiming Based Cross-Phase Modulation Offset Filtering Distributed Raman Amplification
2008/7/31
Adding distributed Raman amplification to a polarization insensitive all-optical retiming technique based on cross-phase modulation and offset filtering reduces the timing jitter of 10 Gb/s retimed si...
Dynamic Range Enhancement and Amplitude Regeneration in Single Pump Fibre Optic Parametric Amplifiers using DPSK Modulation
Dynamic Range Enhancement Amplitude Regeneration Single Pump Fibre Optic Parametric Amplifiers DPSK Modulation
2008/7/31
Input power dynamic range enhancement and amplitude regeneration of highly distorted signals are demonstrated experimentally for 40 Gbit/s RZ-DPSK in a single-pump fibre parametric amplifier with 22 d...
10 Gb/s RSOA Transmission by Direct Duobinary Modulation
RSOA Transmission Direct Duobinary Modulation
2008/7/31
An ultra low-cost electronic solution to achieve 10 Gb/s transmission by means of passive equalization and duobinary encoding using an RSOA with 1.5GHz electrical bandwidth is demonstrated.
Wavelength Resource Scalable Heterodyne Detection Based WDM Access Employing Time-Domain Modulation of Wavelength-Swept Light
Wavelength Resource Employing Time-Domain Modulation Wavelength-Swept Light
2008/7/31
Wavelength resource scalable heterodyne detection based WDM access employing time-domain modulation of wavelength-swept light is proposed. We experimentally demonstrate 1ch ～ 5ch 12.5 GHz-spaced 1.0 G...