Study on Ultra-long Large-capacity Coherent Optical TransmissionSystems Aiming at Realization of the Shannon Limit

以实现香农极限为目标的超长大容量相干光传输系统研究

• 批准号: 22246046
• 负责人: KIKUCHI Kazuro
• 金额: $ 30.87万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22246046/
• 关键词: 情報通信工学; フォトニックネットワーク; 先端的通信

The Nyquist wavelength-division multiplexing (WDM) technique can increase the spectral efficiency up to 1 sybmol/s/Hz, generating rectangular-shaped optical spectra whose bandwidths are equal to the symbol rate and aligning them in the optical frequency domain without any frequency gap. In this project, we study generation, transmission, and demodulation of polarization-division multiplexed (PDM) high-order QAM optical signals under the Nyquist-WDM condition. We successfully establish the method for generating 4QAM, 16QAM, and 64QAM Nyquist-WDM PDM signals at 10 Gsymbol/sand demodulating these signals after transmission.

奈奎斯特波分复用（WDM）技术可以将频谱效率提高到1 sybmol/s/Hz，产生带宽等于符号率的矩形光谱，并将它们在光频域中对齐而没有任何频率间隙。在本计画中，我们研究奈奎斯特-波分复用（Nyquist-WDM）条件下，偏振分割多工（PDM）高阶QAM光讯号的产生、传输与解调。我们成功地建立了产生10 Gsymbol/的4 QAM、16 QAM和64 QAM奈奎斯特-WDM PDM信号并在传输后解调这些信号的方法。

项目成果

Coherent optical commun ications: Historical perspectives and future directions," Chapter 2 in High Spectral Density Optical Communication Techno- logies

相干光通信：历史观点和未来方向”，《高光谱密度光通信技术》第 2 章

• 发表时间: 2010
• 作者: 笹田一郎;西村匡史;田島哲也;原田翔夢;竹田敏和;島田政紀;K..Kikuchi
• 通讯作者: K..Kikuchi

Novel configuration of finite-impulse-response filters tolerant to carrier-phase fluctuations in digital coherent optical receivers for higher-order quadrature amplitude modulation signals.

• DOI: 10.1364/oe.20.026236
• 发表时间: 2012-11
• 期刊: Optics express
• 影响因子: 3.8
• 作者: Y. Mori;Chao Zhang;K. Kikuchi

Characterization of semiconductor-laser phase noise and estimation of bit-error rate performance with low-speed offline digital coherent receivers

• DOI: 10.1364/oe.20.005291
• 发表时间: 2012-02-27
• 期刊: OPTICS EXPRESS
• 影响因子: 3.8
• 作者: Kikuchi, Kazuro

Monitoring of optical signal-to-noise ratio using statistical moments of adaptive-equalizer output in coherent optical receivers

• 发表时间: 2011-07
• 期刊: 16th Opto-Electronics and Communications Conference
• 作者: Md. Saifuddin Faruk;K. Kikuchi

Proper polarization demultiplexing in optical coherent receiver using constant modulus algorithm with training mode

使用具有训练模式的恒模算法在光相干接收机中进行适当的偏振解复用

• 发表时间: 2010
• 作者: Md.S.Faruk;Y.Mori;C.Zhang;K.Kikuchi
• 通讯作者: K.Kikuchi