Stacked TDM-PON with colorless ONU for NG-PON

Current passive optical networks (PONs) (Gigabit PON (GPON) and Ethernet PON (EPON)) will run out of bandwidth sooner or later due to the ever increasing bandwidth demand. The aforementioned and the new next generation PON stage 1 (NG-PON1) standards (10 Gigabit-PON (XG-PON) and 10 Gigabit Ethernet-PON (10G-EPON)) are based on time division multiplexing (TDM-PON), which has its limitations such as limited bandwidth. In this paper, stacked TDM-PON architecture with four wavelengths for each direction, that is compatible with currently deployed optical distribution networks (ODNs), is proposed to meet the requirements of NG-PON stage 2 (NG-PON2). The proposed architecture has colorless optical network units (ONUs) by generating the upstream wavelengths at the optical line terminal (OLT). Four laser diodes (LDs) at the OLT for the upstream transmission are enough for all ONUs, instated of having LD or optical transmitter at each ONU, which makes a colorless and cost-effective ONU. A good performance is observed for 40 Gb/s downstream transmission and 10 Gb/s upstream transmission.

[1]  Rodney S. Tucker,et al.  Scalability of RSOA-based multiwavelength Ethernet PON architecture with dual feeder fiber , 2007 .

[2]  Weisheng Hu,et al.  Compatible TDM/WDM PON Using a Single Tunable Optical Filter for Both Downstream Wavelength Selection and Upstream Wavelength Generation , 2012, IEEE Photonics Technology Letters.

[3]  Thomas Pfeiffer,et al.  Next-generation PON-part II: Candidate systems for next-generation PON , 2009, IEEE Communications Magazine.

[4]  Chun-Kit Chan,et al.  A simple high-speed WDM PON utilizing a centralized supercontinuum broadband light source for colorless ONUs , 2006, 2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference.

[5]  Weisheng Hu,et al.  Symmetric 40-Gb/s TWDM-PON With 39-dB Power Budget , 2013, IEEE Photonics Technology Letters.

[6]  H. Suzuki,et al.  High-Speed Wavelength-Tunable Optical Filter Using Cascaded Mach–Zehnder Interferometers With Apodized Sampled Gratings , 2008, IEEE Journal of Quantum Electronics.

[7]  Frank Geilhardt,et al.  Network operator requirements for the next generation of optical access networks , 2012, IEEE Network.

[8]  Pulak Chowdhury,et al.  Evolution of Optical Access Networks: Architectures and Capacity Upgrades , 2012, Proceedings of the IEEE.

[9]  Sevia Mahdaliza Idrus Sutan Nameh.  Hybrid TDM-WDM 10g-pon for high scalability next generation PON , 2013 .

[10]  Shizhong Xie,et al.  16×10Gb/s symmetric WDM-FOFDM-PON realization with colorless ONUs. , 2011, Optics express.

[11]  Yuanqiu Luo,et al.  Time- and Wavelength-Division Multiplexed Passive Optical Network (TWDM-PON) for Next-Generation PON Stage 2 (NG-PON2) , 2013, Journal of Lightwave Technology.