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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...
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...
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...
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 ...
Usingaglobaloptimizationalgorithm,wemaximizethereachofDPSKandDQPSKsys-tems including PMD and nonlinear phase noise at data rates ranging from 5Gbit/s to 230Gbit/s.
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...
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...
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 ...
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.
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 ...
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...
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.
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...
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...
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.

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