搜索结果: 1-15 共查到“光学仪器及技术 DPSK”相关记录16条 . 查询时间(0.16 秒)
大气湍流是自由空间光通信链路系统的主要限制因素。大气湍流造成光束的强度闪烁和相位起伏。因此,基于MZI-DPSK调制,考虑大、小湍流尺度引起的强度闪烁和相位噪声对误码率的影响且强度闪烁满足逆高斯分布和相位波动满足高斯分布。利用分布式天线阵接收技术,研究了大气湍流下自由空间光通信链路的误码率性能,推导了在内外尺度下,分布式天线阵接收的误码率关于相位误差的函数表达式。为了提高误码率的性能,天线阵接收采...
A Consolidated Multi-rate Burst-Mode DPSK Transmitter Using a Single Mach-Zehnder Modulator
Phase modulation Free-space optical comm Optical communications
2011/5/26
We demonstrate phase modulation, pulse carving, and burst-mode windowing in a single Mach-Zehnder modulator, significantly reducing size, weight, power, and complexity of prior three-modulator designs...
40-Gbit/s RZ-DPSK Wavelength Conversion Using Four-Wave Mixing in a Quantum Dot SOA
RZ-DPSK Wavelength Conversion Dot SOA
2011/5/15
We demonstrate, for the first time, all-optical wavelength conversion of 40-Gbit/s RZ-DPSK signal using four-wave mixing in a quantum dot semiconductor optical amplifier. We achieved error-free operat...
Compact Tunable Delay Interferometer using Movable Prism for DPSK Optical Performance Monitor
Compact Tunable Delay Interferometer Movable Prism PSK Optical Performance Monitor
2011/5/15
A tunable delay interferometer for a multi-bit-rate DPSK optical performance monitor is described. Quality monitoring of various bit rate signals using all-optical sampling is demonstrated and agrees ...
Impact of PMD and Nonlinear Phase Noise on the Global Optimization of DPSK and DQPSK Systems
Optical communications Phase modulation Nonlinear optics fibers
2010/6/10
Usingaglobaloptimizationalgorithm,wemaximizethereachofDPSKandDQPSKsys-tems including PMD and nonlinear phase noise at data rates ranging from 5Gbit/s to 230Gbit/s.
Generation and Detection of 2.56 Tbit/s OTDM Data using DPSK and Polarisation Multiplexing
Nonlinear optics fibers Fiber optics communications
2010/6/9
Error free and low penalty generation and detection of 2.56 Tbit/s serial data is demonstrated. 1.28 Tbaud pulses are modulated with DPSK and polarisation multiplexed to achieve 2.56 Tbit/s with recor...
166 Gb/s PDM-NRZ-DPSK modulation using thin-LiNbO 3 -substrate modulator
Phase modulation Modulators
2010/6/4
The modulation of a 166-Gb/s PDM-NRZ-DPSK signal is demonstrated using a thin-LiNbO 3 -substrate modulator. The use of a 0.1-mm-thick substrate and a ridge-type waveguide im-proves the optical respons...
Characterization of Integrated Polarization-Diversity DPSK Demodulator with Two-Dimensional Chirped Grating Couplers and Ring Resonators
Integrated optics devices Fiber optics communications
2010/6/4
We describe the design and experimental results of an integrated polarization-diversity DPSK demodulator. The integration of 2-D chirped grating couplers enabled polarization-diversity operation with ...
Cost Efficient Directly Modulated DPSK Downstream Transmitter and Colourless Upstream Remodulation for Full-duplex WDM-PONs
Optical communications Phase modulation
2010/6/4
We implement a cost efficient 10.7Gb/s directly modulated DPSK transmitter in a bidirectional WDM-PON, which also remodulates the downstream phase encoded signal for 2.5Gb/s OOK upstream transmission.
Low Cost Multi-Impairment Monitoring Technique for 43 Gbps DPSK and 86 Gbps DP-DPSK Using Delay Tap Asynchronous Sampling Method
Multi-Impairment Monitoring Technique DPSK DP-DPSK
2009/7/17
We present a novel low cost method of multi-impairment monitoring for 43 Gbps DPSK using delay tap asynchronous sampling with 12 GHz receivers. This technique is also demonstrated for 86 Gbps DP-DPSK ...
8x8 Full-duplex Demonstration of Asynchronous, 10Gbps, DPSK- OCDMA System using Apodized SSFBG and multi-port En/Decoder
8x8 Full-duplex Demonstration DPSK- OCDMA System Apodized SSFBG multi-port En/Decoder
2009/7/16
We develop a novel apodized, 16-level-phase-shifted SSFBG encoder/decoder, which can improve the system performance of OCDMA system. Error free (BER<10 -9 ) transmissions of 8x8 full-duplex, asynchron...
Narrow Filtered DPSK:an Attractive Solution for Hybrid Systems
Filtered DPSK Hybrid Systems
2008/8/4
We propose an efficient Hybrid system based on 40G DQPSK and 10G narrow filter DPSK in place of OOK. This technique reduces XPM on DQPSK channels at low inline dispersion.
Transmission Experiment using Installed Submarine Cable for System Upgrade with RZ-DPSK
Installed Submarine Cable System Upgrade RZ-DPSK
2008/8/4
We have shown that a capacity of the transpacific system designed to support 8 x 2.5 Gbit/s can be increased to a factor of eight by using 16 x 10 Gbit/s RZ-DPSK in transmission experiments using a de...
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...
Hybrid Flip-Chip Integration of a 40 Gb/s DPSK Receiver Comprising a Balanced Photodetector on a DLI-SOI Board
Hybrid Flip-Chip Integration DPSK Receiver Comprising Balanced Photodetector DLI-SOI Board
2008/8/4
A DPSK receiver concept using flipchip hybrid integration of InP photodetectors on SOI boards with optical decoder is presented. Horizontal waveguiding enables low-cost production for high data rates.