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Re-modulated technology of WDM-PON employing different DQPSK downstream signals

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Abstract

This paper proposes a kind of modulation architecture for wavelength-division-multiplexing passive optical network (WDMPON) employing optical differential quadrature phase shift keying (DQPSK) downstream signals and two different modulation formats of re-modulated upstream signals. At the optical line terminal (OLT), 10 Gbit/s signal is modulated with DQPSK. At the optical network unit (ONU), part of the downstream signal is re-modulated with on-off keying (OOK) or inverse-return-to-zero (IRZ). Simulation results show the impact on the system employing NRZ, RZ and carrier-suppressed return-to-zero (CSRZ). The analyses also reflect that the architecture can restrain chromatic dispersion and channel crosstalk, which makes it the best architecture of access network in the future.

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DOI:10.1007/s11801-012-2328-0

基金项目:This work has been supported by the National Internation Technology Cooperration (No.2012DFG12110), the National Natural Science Foundationof China (Nos.61077050 and 61077014), and the Open Foundation of State Key Laboratory of Optical Communication Technologies andNetworks (No.2010OCTN-02).

收稿日期:2012-08-13

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GAO Chao:School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
XIN Xiang-jun:School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
YU Chong-xiu:School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

联系人作者:GAO Chao(aoxiang0612@gmail.com)

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引用该论文

GAO Chao,XIN Xiang-jun,YU Chong-xiu. Re-modulated technology of WDM-PON employing different DQPSK downstream signals[J]. 光电子快报(英文版), 2012, 8(6): 473-476

GAO Chao,XIN Xiang-jun,YU Chong-xiu. Re-modulated technology of WDM-PON employing different DQPSK downstream signals[J]. Optoelectronics Letters, 2012, 8(6): 473-476

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