DQPSK Directly Phase Modulated DFB for Flexible Coherent UDWDM-PONs

被引：14
|
作者：
Cano, Ivan N. [1 ]
Lerin, Adolfo [1 ]
Prat, Josep [1 ]
机构：
[1] Univ Politecn Cataluna, E-08034 Barcelona, Spain
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2016年 / 28卷 / 01期
关键词：
DFB; direct phase modulation; DQPSK; passive optical networks; UDWDM; RECEIVER;
D O I：
10.1109/LPT.2015.2478972
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A bandwidth-limited distributed feedback laser directly phase modulated with a 5-Gb/s differential quadrature phase shift keying (DQPSK) signal is demonstrated in a statistical ultra-dense wavelength division multiplexing passive optical network. Optical DQPSK modulation was achieved by simply equalizing a four-level waveform. An intradyne receiver based on a 120 degrees optical hybrid with straightforward differential decoding processing was used to detect and recover the data attaining a sensitivity of -38 dBm at BER = 10(-3). Negligible penalty was observed when adding a second user at 5-GHz channel separation.
引用
收藏
页码：35 / 38
页数：4
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