On-field measurement trial of 4×128 Gbps PDM-QPSK signals by linear optical sampling
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- 作者：Bin Liua ; Zhichao Wua ; Songnian Fua ; songnian@mail.hust.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Yonghua Fengb ; Deming Liua
- 关键词：Linear optical sampling ; Passively mode-locked fiber laser ; PDM-QPSK ; Error vector magnitude (EVM)
- 刊名：Optics Communications
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：384
- 期：Complete
- 页码：36-40
- 全文大小：915 K
文摘
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Linear optical sampling capable of characterizing advanced modulation formats with high fidelity can satisfy the demand as the rapid development of fiber optical communications.
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We demonstrate on-field measurement trial of commercial four-channel 128 Gbps polarization division multiplexing quadrature phase shift keying (PDM-QPSK) signals with truly random characteristics by self-developed equipment using linear optical sampling.
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We carry out performance comparison with the Agilent modulation format analyzer (N4391A), and verify that the prototype has almost the same capability for on-site measurement.