標題: TWDM-PON With Signal Remodulation and Rayleigh Noise Circumvention for NG-PON2
作者: Chow, C. W.
Yeh, C. H.
Xu, K.
Sung, J. Y.
Tsang, H. K.
光電工程學系
Department of Photonics
關鍵字: Optical communications;noise mitigation;wavelength-division-multiplex passive optical network (WDM-PON);differential-phase-shift-keying (DPSK)
公開日期: 1-Dec-2013
摘要: We propose and demonstrate a 40-Gb/s (4 x 10 Gb/s) downstream and 10-Gb/s (4 x 2.5 Gb/s) upstream time-wavelength-division-multiplexed passive optical network (TWDM-PON) using signal remodulation. Here, a downstream differential-phase-shift-keying (DPSK) signal and an upstream remodulated carrier-suppressed single-sideband non-return-to-zero (CS-SSB-NRZ) signal are used, which are wavelength shifted to circumvent Rayleigh backscattering (RB). A silicon-based optical microring resonator (MRR) filter is preinstalled at the optical networking unit (ONU) to select the desired downstream wavelength and simultaneously demodulate the downstream DPSK signal, which is then detected by a monolithic-integrated germanium-on-silicon (Ge-Si) photodiode (PD). Using silicon-based devices could be cost effective for the cost-sensitive ONU. The future monolithic integration of a silicon filter, a silicon detector, and a silicon modulator in the ONU is also discussed. The characteristics of the preinstalled silicon-based MRR and the Ge-Si PD are discussed. Error-free transmission (bit-error rate (BER) < 10(-9)) is achieved in both downstream and remodulated upstream signals after propagating through 20 km of standard single-mode fiber (SMF).
URI: http://dx.doi.org/10.1109/JPHOT.2013.2285723
http://hdl.handle.net/11536/23440
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2013.2285723
期刊: IEEE PHOTONICS JOURNAL
Volume: 5
Issue: 6
結束頁: 
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