Demonstration of flexible multicasting and aggregation functionality for TWDM-PON

Abstract The time- and wavelength-division multiplexed passive optical network (TWDM-PON) has been recognized as an attractive solution to provide broadband access for the next-generation networks. In this paper, we propose flexible service multicasting and aggregation functionality for TWDM-PON utilizing multiple-pump four-wave-mixing (FWM) and cyclic arrayed waveguide grating (AWG). With the proposed scheme, multiple TWDM-PON links share a single optical line terminal (OLT), which can greatly reduce the network deployment expense and achieve efficient network resource utilization by load balancing among different optical distribution networks (ODNs). The proposed scheme is compatible with existing TDM-PON infrastructure with fixed-wavelength OLT transmitter, thus smooth service upgrade can be achieved. Utilizing the proposed scheme, we demonstrate a proof-of-concept experiment with 10-Gb/s OOK and 10-Gb/s QPSK orthogonal frequency division multiplexing (OFDM) signal multicasting and aggregating to seven PON links. Compared with back-to-back (BTB) channel, the newly generated multicasting OOK signal and OFDM signal have power penalty of 1.6 dB and 2 dB at the BER of 10 −3 , respectively. For the aggregation of multiple channels, no obvious power penalty is observed. What is more, to verify the flexibility of the proposed scheme, we reconfigure the wavelength selective switch (WSS) and adjust the number of pumps to realize flexible multicasting functionality. One to three, one to seven, one to thirteen and one to twenty-one multicasting are achieved without modifying OLT structure.

[1]  Vittorio M. N. Passaro,et al.  A TWDM-PON With Advanced Modulation Techniques and a Multi-Pump Raman Amplifier for Cost-Effective Migration to Future UDWDM-PONs , 2015, Journal of Lightwave Technology.

[2]  G. Bosco,et al.  TWDM-PON-compatible 10 Gbps burst-mode coherent reflective ONU achieving 31 dB ODN loss using DFB lasers , 2014, 2014 The European Conference on Optical Communication (ECOC).

[3]  Lei Wang,et al.  Flexible TWDM PON system with pluggable optical transceiver modules. , 2014, Optics express.

[4]  Jun-ichi Kani,et al.  Flexible load balancing technique using dynamic wavelength bandwidth allocation (DWBA) toward 100Gbit/s-class-WDM/TDM-PON , 2010, 36th European Conference and Exhibition on Optical Communication.

[5]  T. Miyazaki,et al.  DPSK multicast using multiple-pump FWM in Bismuths highly nonlinear fiber with high multicast efficiency. , 2008, Optics express.

[6]  George N. Rouskas.  Optical layer multicast: rationale, building blocks, and challenges , 2003 .

[7]  Optical wavelength multicasting based on four wave mixing in highly nonlinear fiber with reduced polarization sensitivity , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[8]  J. Prat,et al.  Hybrid WDM/TDM PON using the AWG FSR and featuring centralized light generation and dynamic bandwidth allocation , 2005, Journal of Lightwave Technology.

[9]  J. Yu,et al.  Polarization insensitive wavelength conversion based on four-wave mixing for polarization multiplexing signal in high-nonlinear fiber , 2009 .

[10]  Yuefeng Ji,et al.  Simultaneous multichannel wavelength multicasting and XOR logic gate multicasting for three DPSK signals based on four-wave mixing in quantum-dot semiconductor optical amplifier. , 2014, Optics express.

[11]  M. Scaffardi,et al.  Spectral-Efficient Flexible Optical Multicasting in a Periodically Poled Lithium Niobate Waveguide , 2015, Journal of Lightwave Technology.

[12]  M. Ohtsu,et al.  A monolithic optical frequency comb generator , 1994, IEEE Photonics Technology Letters.

[13]  B. Guo,et al.  Experimental demonstration of 400 Gb/s optical PDM-OFDM superchannel multicasting by multiple-pump FWM in HNLF. , 2013, Optics express.

[14]  A. S. M. Supa'at,et al.  Flexible 16 $\times$ 10-Gb/s All-Optical Broadcast and Multicast TWDM Passive Optical Network , 2015, IEEE Photonics Journal.

[15]  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.

[16]  K. Yvind,et al.  One-to-six WDM multicasting of DPSK signals based on dual-pump four-wave mixing in a silicon waveguide. , 2011, Optics express.

[17]  L.G. Kazovsky,et al.  A highly flexible and efficient passive optical network employing dynamic wavelength allocation , 2005, Journal of Lightwave Technology.