Reduced-bandwidth duobinary differential continuous-phase modulation format for optical communications

被引：1
|
作者：
Boivin, D [1 ]
Hanna, M
Barry, JR
机构：
[1] CNRS, GTL, FEMTOST, F-57070 Metz, France
[2] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2005年 / 17卷 / 06期
关键词：
differential phase-shift keying (DPSK); duobinary modulation; modulation formats; optical fiber communications;
D O I：
10.1109/LPT.2005.846572
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 demonstrate a new modulation format based on differential phase-shift keying (DPSK) with a duobinary-shaped modulating signal for applications in optical communications. Compared to conventional DPSK and using the 20-dB full-width criterion, numerical and experimental data show a bandwidth reduction by a factor of two resulting in a better tolerance to group-velocity dispersion but at the expense of a back-to-back sensitivity degradation of 3.5 dB.
引用
收藏
页码：1331 / 1333
页数：3
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