1. Advanced Optical Technologies for Data Intensive Applications Kim Roberts iGrid 2005

2. 2 How do I optically switch my Lightpaths? >Need to have each wavelength arriving at a node be able to leave via any of four other optical lines, or drop locally. >Must be low cost Local Add Drop

3. 3 Wavelength Selective Switch >One fiber in, five fibers out. >Individually cross-connects 80 wavelengths

4. 4 Hurdle: Fiber Dispersion Management ROADM SMF-28 E-LEAF TWc Photonic Cross-Connect Photonic Cross-Connect Photonic Cross-Connect Bulk dispersion compensation will not suffice

5. 5 Electronic Dispersion Precompensation OSNR vs. distance (10E-3 BER; 10 Gb/s) Simple Rx Tx pre-comp (IM-DD) 3 bit MLSE Tx pre-comp (DPSK) 5 bit MLSE GOOD BAD Optical Dispersion Compensation is Obsolete

6. 6 Transmitter Pre-compensation Optical modulator laser D/A CD -1 Digital data Recovered data 0 Tx Rx

7. 7 How can I eliminate latency? ARQ buffer latency grows with round trip time.

8. 8 Forward Error Correction G.975 Wraptor BCH-20 BCH-3 BCH-1 Uncoded >FEC eliminates Bit Errors >Lightpaths with no packet loss

9. 9 How do I send a large data set to several destinations?

10. 10 Layer 1 Multicast OME Up to 160 Gb/s HDXc Up to 640 Gb/s HDX Up to 1.28 Tb/s single shelf 3.84 Tb/s as a hub One layer 1 switch: 50 Mb/s 70,000 ways, 240Gb/s streams 15 ways Demo US110 (hardware capacity)

11. 11 How can I secure my Lightpath? >Prevent interception of valuable IP or secret information. Movie production, government, healthcare, finance, corporate >Preclude alteration or insertion of false data Banking, government

12. 12 Lightpath Encryption Demo US106 >Full OC-192/STM-64 10G throughput. >One to twelve lightpaths with separate keys. 12 x GigE used to heavily load the OC-192 as 12xSTS-1-16V >400 ns added latency for AES-256 encryption Another 400 ns for decryption >Integrated into the Nortel OME-6500 transport shelf. >Packet by packet encryption No encryption of idle frames No overhead added to each packet

13. 13 Your Challenge >Most protocols are designed for lousy connections >How can you exploit Lightpaths that are: Wavelength switched to your destination Independent of optical physics Free of packet loss Layer 1 multicast Securely encrypted 40 Gb/s