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[期刊论文] 作者：WenboZhang,QingyueDi,LixiaXi,XiaoguangZhang,
来源：ChineseOpticsLetters 年份：2012
To solve the problem of calibrating the polarimeter module, we design a vector projection (VP) method which is based on the theorem of vector projection and the principle of calibration. The calibration matrix can be calculated by VP method......
[期刊论文] 作者：SongYang,XiaoguangZhang,LixiaXi,WenyuPeng,
来源：ChineseOpticsLetters 年份：2012
The practical and effective methods to implement the impairments in optical network are put forward and applied in testing the equipment reliability and transmission quality under the condition of bit errors. The results show that the propo......
[期刊论文] 作者：SongYang,XiaoguangZhang,LixiaXi,DongHeZhao,
来源：ChineseOpticsLetters 年份：2014
Based on Software defined network (SDN), we brought up the NetWork Test Tools for communication networks. It is an innovative application of SDN, which can support the application traffic test....
[期刊论文] 作者：SongYang,XiaoguangZhang,LixiaXi,DongheZhao,
来源：ChineseOpticsLetters 年份：2014
Fiber Bending causes the bending loss, which mainly reduces the optical signal noise ratio (OSNR) of the optical transmission signal. When the fiber is bent to a certain degree, it will cause an interrupt signal. In this paper, we do the th......
Polarization Mode Dispersion Mitigation by Low-Density Parity-CheckCodes with Polarization Scrambler
[会议论文] 作者：LixiaXi;LeiYang;HaoranChen;DahaiHan;XiaoguangZhang;,
来源：第四届全国信息光学与光子器件学术会议 年份：2012
Low-density parity-check (LDPC) codes combined with polarization scramblers are used to mitigate polarization mode dispersion (PMD) in 40 Gbit/s optical fib...
[期刊论文] 作者：YuminLiu,ZhongyuanYu,YuanZheng,XiaoguangZhang,BojunYang,
来源：ChineseOpticsLetters 年份：2004
A tunable polarization mode dispersion (PMD) compensator based on strain-chirped fiber Bragg gratings (FBGs) is proposed. It natures in flexible designing, large tuning range, without using linear or nonlinear chirped phase mask, fast tunin......
[期刊论文] 作者：HaoZhou,LixiaXi,JianpingLi,XiaoguangZhang,NaLiu,
来源：ChineseOpticsLetters 年份：2012
Fluctuating polarization state-of-light in the optical loop is an important factor that seriously influences the output performance of a multi-carrier source based on re-circulating frequency shifter (RFS). The reason for output spectrum in......
[期刊论文] 作者：LixiaXi,LeiYang,HaoranChen,DahaiHan,XiaoguangZhang,
来源：ChineseOpticsLetters 年份：2012
Low-density parity-check (LDPC) codes combined with polarization scramblers are used to mitigate polarization mode dispersion (PMD) in 40-Gb/s optical fiber system. The simulations are performed to compare the correction performance of LDPC......
[会议论文] 作者：YingXu;HongYuan;DongyanWei;QifengLai;XiaoguangZhang;WeinaHao;,
来源：第六届中国卫星导航学术年会 年份：2015
GNSS has been applied widely.Yet because satellite signals are vulnerable and susceptible to blockage,the operability of GNSS in urban canyons are greatly h...
Improved modulation format identification based on Stokes parameters using combination of fuzzy c-me
[期刊论文] 作者：LongxueCheng,LixiaXi,DongheZhao,XianfengTang,WenboZhang,XiaoguangZhang,
来源：ChineseOpticsLetters 年份：2015
In this Letter, we develop the Stokes space-based method for modulation format identification by combing power spectral density and a cluster analysis to identify quadrature amplitude modulation (QAM) and phase-shift keying (PSK) signals. F......
[期刊论文] 作者：WenboZhang,DongweiPan,XiaofeiSu,XiaoguangZhang,LixiaXi,andXianfengTang,
来源：ChineseOpticsLetters 年份：2016
A new two-stage carrier-phase recovery scheme using a combination of an optical pilot-aided algorithm with the crossed constellation transformation algorithm for either square-framed or non-square-framed M-level-quadrature amplitude modulat......
[期刊论文] 作者：JianruiLi,JiachuanLin,XiaoguangZhang,LixiaXi,XianfengTang,YaojunQiao,
来源：ChineseOpticsLetters 年份：2015
We demonstrate a new scheme for generation of optical frequency comb (OFC) based on cascade modulators, 23 comb lines within 0.5 dB spectral power variation are obtained. An optical finite impulse response (FIR) filter is introduced for sup......
[期刊论文] 作者：JinnanZhang,YueGu,XueguangYuan,FengTian,XiaoguangZhang,JinjingTao,
来源：ChineseOpticsLetters 年份：2012
A new cross-tracking method is proposed to improve the convergent speed of the control algorithm in real-time polarization mode dispersion (PMD) compensation systems. The cross-tracking algorithm is compared with the previously used ditheri......
Performance analysis of LDPC code based on Watermark scheme in high-speed optical communication syst
[期刊论文] 作者：WenxueHe,WenboZhang,ChaoLi,LixiaXi,XiaoguangZhang,YaojunQiao,
来源：ChineseOpticsLetters 年份：2015
We study the decoding performance of low-density parity-check (LDPC) code based on Watermark scheme under different percentages of water-mark bits over 100 Gb/s differential quadrature phase shift keying (DQPSK) high-speed optical communica......
[期刊论文] 作者：WenyuPeng,LixiaXi,XuanWeng,XiaZhang,DongheZhao,XiaoguangZhang,
来源：ChineseOpticsLetters 年份：2013
We propose a novel in-band optical signal-to-noise ratio (OSNR) monitoring method based on polarization interference. The method realizes a monitoring accuracy of ±0.5 dB within the range of 9–34 dB. Our results indicate that the proposed......
Joint estimation of frequency offset and chromatic dispersion based on the training sequences in M-a
[期刊论文] 作者：YipingSun,LixiaXi,XianfengTang,DongheZhao,YaojunQiao,XiaZhang,XiaoguangZhang,
来源：ChineseOpticsLetters 年份：2014
A data-aided method of joint frequency offset and chromatic dispersion estimation based on the Chu training sequences is shown in 112 Gb/s polarization-multiplexed (PM) quadrature phase-shift keying and 224 Gb/s PM-16-quadrature amplitude m......
Simultaneously compensating tunable CD and adaptive PMD using two different nonlinearly chirped fibe
[期刊论文] 作者：LiYu,XiaoguangZhang,GuangtaoZhou,YuminLiu,JianzhongZhang,LixiaXi,BojunYang,
来源：ChineseOpticsLetters 年份：2004
Experimental research of simultaneous tunable chromatic dispersion (CD) and adaptive polarization mode dispersion (PMD) compensations in optical fiber communication system was reported. Two different nonlinearly chirped fiber Bragg gratings......
Theoretical analysis of the performance of a single side band multicarrier source based on a re-circ
[期刊论文] 作者：WanMeng,LixiaXi,XiaoguangZhang,JiachuanLin,FengTian,HaoTu,XiaZhang,
来源：ChineseOpticsLetters 年份：2013
An optical bandpass filter (OBF) is an important element whose properties considerably influence the output performance of a single side band multicarrier source based on a re-circulating frequency shifter. The influence of the OBF in the l......
[会议论文] 作者：WenboZhang[1]QingyueDi[1]LixiaXi[2]XiaoguangZhang[2],
来源：第四届全国信息光学与光子器件学术会议 年份：2012
To solve the problem of calibrating the polarimeter module,we design a vector projection (VP) method which is based on the theorem of vector projection and...
[期刊论文] 作者：XiaoguangZhang,LiYu,GuangtaoZhou,YuShen,YuanZheng,ChaoyangLi,YuminLiu,LinChen,BojunYang,
来源：ChineseOpticsLetters 年份：2003
We report an experiment of adaptive compensation for first-order polarization mode dispersion (PMD) in 10-Gb/s return zero (RZ) optical communication system. The compensated differential group delay (DGD) is up to 30 ps. The quasi-real-time......
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