Demonstration of a Complete 12-Port Terabit Capacity Optical Packet Switching Fabric

1. Demonstration of a Complete 12-Port Terabit Capacity Optical Packet Switching Fabric Benjamin A. Small, Odile Liboiron-Ladouceur, Assaf Shacham, John P. Mack, and Keren Bergman Columbia University Department of Electrical Engineering

2. Outline • Introduction • Switching Node and Packet Structure • Data Vortex Topology • Experimental Setup • Experimental Results • Conclusions

3. OPS network Introduction • Interconnection Networks • High performance computing systems • Next-generation telecom routers • Storage area networks • Experimental System • 1212 switch • ~100 ns routing latency • 160 Gbps per port • Terabit capacity

4. multi-λ packet Switching Node Design SOA 70:30 North East 50:50 West South SOA 70:30 λF O/E control logic 50:50 λH O/E wavelength-parallel transparent routing

5. Frame Frame H0 H1 H2 H2 H3 P0 P0 … … P15 P15 Packet Structure slot (25.7 ns) packet (22.4 ns) payload (19.3 ns) deadtime (3.3 ns) guardtime (1.6 ns) multiple-wavelength packet

6. Packet Structure H3 H1 H0 H2 F average power (dBm) wavelength (nm)

7. west north south east deflection structure Data Vortex Topology output node input node

8. System Implementation

9. λ mod mod mod mod mod mod Experimental Setup F H0 H1 EDFA H2 H3 P0 5 P1 Rx … SOA P15 PPG DTG BERT 10 Gbps ~39 Mbps

10. Experimental Results P F H0 H1 H2 H3 0001 3 hops ≈ 60 ns 0010 0011 7 hops ≈ 160 ns 0101 0110 0111 1001 1010 1011 1101 1110 50 ns/div 1111

11. Experimental Results input #7 input #4 +3 hop deflection F H0 H1 H2 H3 20 ns/div 1101

12. Experimental Results

13. Conclusions • Terabit capacity • Full 1212 switching capabilities • 160 Gbps payload • 26 ns packet slots, 19 ns payload • 110 ns median routing latency • 10-12 BER (>1.3 dB range) • Internal contention resolution http://lightwave.ee.columbia.edu/