Wavelength remodulation using DPSK down-and-upstream with high extinction ratio for 10-Gb/s DWDM-passive optical networks

被引：37

作者：

Chow, C. W. ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Inst Electroopt Engn, Dept Photon, Hsinchu, Taiwan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2008年 / 20卷 / 1-4期

关键词：

differential phase-shift keying (DPSK); passive optical networks (PONS); wavelength remodulation;

D O I：

10.1109/LPT.2007.911009

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：

We propose and demonstrate a novel wavelength remodulation scheme using differential phase-shift keying (DPSK) modulation format in both downstream and upstream signals for "colorless" dense wavelength-division-multiplexed (DWDM) passive optical networks (PONS). The scheme enables high extinction ratio in both downstream and upstream remodulated signals. Error-free operation was achieved in a 20-km-reach 10-Gb/s DWDM-PON without dispersion compensation. Timing misalignment tolerance between downstream and upstream remodulated signals and maximum launched optical power for the proposed scheme are studied. Comparison with other wavelength remodulation schemes for DWDM-PONS is also performed, showing the proposed scheme can be a potential candidate for next-generation wavelength reuse DWDM-PONS.

引用

页码：12 / 14

页数：3

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