A novel optical picosecond-duration NRZ-to-RZ format converter with simultaneous wavelength multicasting using a single-stage Mach-Zehnder modulator

A novel optical picosecond-duration NRZ-to-RZ format converter with simultaneous wavelength multicasting using a single-stage Mach-Zehnder modulator
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一种新型光学皮秒持续时间 NRZ 到 RZ 格式转换器,使用单级 Mach-Zehnder 调制器同时进行波长多播

DOI:
10.1016/j.optcom.2012.06.082
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发表时间:
2012-10
影响因子:
2.4
通讯作者:
Caiyun Lou
Caiyun Lou
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
3. Wenke Yu;Li Huo;Dan Lu;Caiyun Lou

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我们提出了一种基于单级双臂电光马赫-曾德尔调制器(MZM)和短单模光纤(SMF)实现nrz到rz格式转换和同时波长多播的新颖简单方案。在光平频梳产生的条件下,通过啁啾补偿实现格式转换和波长组播。通过数值模拟,成功地演示了40Gb/s NRZ- rz转换与1 - 5多波长信道的多播和NRZ转换信号在200km色散管理光纤链路上的传输。研究结果表明,经过格式转换后,可以获得40Gb/s、2ps的保波长RZ信号。转换后的RZ信号具有良好的传输性能,利用光时分复用(OTDM)技术可以很容易地复用到160Gb/s。所有的组播信道在传输50km后都可以实现无差错。此外,由于该方案的重定时功能,转换操作还可以大大降低退化的NRZ信号的时序抖动。
We propose a novel and simple scheme to achieve NRZ-to-RZ format conversion and simultaneous wavelength multicasting based on a single-stage dual-arm electro-optic Mach–Zehnder modulator (MZM) and a short single mode fiber (SMF). The format conversion and wavelength multicast process are achieved by chirp compensation under the condition of generation of optical flat frequency comb. 40Gb/s NRZ-to-RZ conversion with one-to-five multiple-wavelength channel multicasting and transmission of the NRZ and the converted signals over 200km dispersion-managed fiber-link are successfully demonstrated by numerical simulation. Research results show that 40Gb/s 2ps RZ signal with wavelength-preserving can be obtained after format conversion. The converted RZ signal presents good transmission performance and can easily be multiplexed to 160Gb/s using optical time division multiplexing (OTDM) technology. All the multicast channels can be error free after 50km transmission. Besides, the conversion operation can also greatly reduce the timing jitter of the degraded NRZ signal due to the retiming function of the proposed scheme.
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