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工具技术 2009年第4期43卷 94-98页

作者：陈青山吕乃光姜峰北京邮电大学北京信息科技大学

cfbg(Chirped Fiber Bragg Grating)是一种光纤无源器件,在光通信系统的色散补偿以及传感技术等方面具有广阔的应用前景,其色散特性对其推广应用具有至关重要的作用。本文介绍一种cfbg色散特性测量的光纤低相干干涉系统,并说明其测量原... 详细信息

cfbg(Chirped Fiber Bragg Grating)是一种光纤无源器件,在光通信系统的色散补偿以及传感技术等方面具有广阔的应用前景,其色散特性对其推广应用具有至关重要的作用。本文介绍一种cfbg色散特性测量的光纤低相干干涉系统,并说明其测量原理。进行了相关的实测实验并对所采集的干涉图进行数据处理。实验表明该系统测量精度高,达到皮秒(群时延)量级,并且测量速度快。并对系统进行了误差分析。

关键词： cfbg 低相干色散测量误差

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High Accuracy Measurement of The Dispersion of cfbgs and Discussion on Related Issues

High Accuracy Measurement of The Dispersion of CFBGs and Dis...

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第二届国际测量仪器与测试自动化学术会议

作者： Chen Qingshan~(1 2) Lv Naiguang~2 Deng Wenyi~2 Jiang Feng~2 1.School of electronic engineering Beijing University of post & telecommunication 2.School of opto-electronic information & telecpmmunication engineering Beijing Information science & Technology University 100192 China

＜正＞cfbg（Chirped Fiber Bragg Grating）is a passive optical fiber devices with broad application prospect in the chromatic dispersion compensation of optical communication *** precision characterization of the dispersion property of a cfbg is the key to its utilization in this aspect. For this purpose,a low-coherence fiber interferometric system is developed and the principle is *** experiments are carried out and the acquired interferograms are manipulated to obtain the dispersion property of a cfbg. Especially,according to the measurement principle,the error of the system is analyzed,involving error source analysis,error transferring relationship derivation as well as error synthesizing. Based on all these,relative conclusion is drawn.

关键词： cfbg Low-coherence Dispersion Measurement Accuracy

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Multi-wavelength fiber ring laser based on a chirped moiré fiber grating and a semiconductor optical amplifier

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Chinese Optics Letters 2009年第6期7卷 469-471页

作者：鲁韶华许鸥冯素春简水生 Institute of Lightwave Technology Key Lab of All Optical Network and Advanced Telecommunication Network of EMCBeijing Jiaotong University

A simple and cost-effective multi-wavelength fiber ring laser based on a chirped Moire fiber grating （CMFG） and a semiconductor optical amplifier （SOA） is proposed. Stable triple-wavelength lasing oscillations at room temperature are experimentally demonstrated. The measured optical signal-to-noise ratio （SNR） reaches the highest value of 50 dB and the power fluctuation of each wavelength is less than 0.2 dB within a 1-h period. To serve as a wavelength selective element, the CMFG possesses excellent comb-like filtering characteristics including stable wavelength interval and ultra-narrow passband, and its fabrication method is easy and flexible. The lasing oscillation shows a narrower bandwidth than SOA-based multi-wavelength fiber lasers utilizing some other kinds of wavelength selective components. Methods to optimize the laser performance are also discussed.

关键词： ring length cfbg Multi-wavelength fiber ring laser based on a chirped moir fiber grating and a semiconductor optical amplifier SOA

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PMD and CD Characterization of Chirped FBG Using Microwave Photonic Technique

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光学学报 2003年第S1期23卷 133-134页

作者： Xiaoke Yi, Chao Lu, Fang Wei, Yixin Wang, Wende Zhong Network Technology Research Center (S2-B3c-23), Nanyang Technological University. Singapore 639798 Institute for Communications Research, Singapore Network Technology Research Center S2-B3c-23 Nanyang Technological University Singapore 639798 Institute for Communications Research Singapore

We present and demonstrate experimentally a new method for measuring the polarization-mode-dispersion(PMD) of a Chirped Fiber Bragg Grating. The technique has also been applied to accurate chromatic dispersion evaluat... 详细信息

关键词： PMD and CD Characterization of Chirped FBG Using Microwave Photonic Technique on in cfbg of CD

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Optimal modulation formats for 2560 km optical transmission with low power penalty

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Frontiers of Electrical and Electronic Engineering in China 2007年第2期2卷 209-213页

作者： CHEN Yong ZHANG Feng CAO Jihong QIN Xi LU Bo LU Dan CHEN Ming JIAN Shuisheng Institute of Lightwave Technology Beijing Jiaotong UniversityBeijing 100044China

The production mechanism of non-return-to-zero(NRZ),return-to-zero(RZ)and carrier suppressed return-to-zero(CSRZ)was analyzed theoretically in this *** compared the transmission performance of CSRZ with RZ and NRZ formats at 10 Gb/s system by numerical *** we simulated the transmission model constructed with Erbium-doped fiber amplifier(EDFA)as the solo amplifier and the chirped fiber Bragg grating(cfbg)as the solo dispersion compensator used in the system.A practical 8x10 Gb/s 2560 km transmitted experiment was conducted in straight line with these different modulation formats mentioned above and the experiment results show very good agreement with the result of computer *** CSRZ format is more effective than other formats in the system,and involved only 2.5 dB power penalty cost in the practical 2560 km error-free *** results also show that CSRZ will help to optimize the transmitted results and reduce the transmitted penalty further.

关键词： long haul optical transmission modulate formats cfbg error-free low penalty

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