Advanced Optical Technologies for Data Intensive Applications Kim

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Advanced Optical Technologies for Data Intensive Applications Kim Roberts i. Grid 2005

Advanced Optical Technologies for Data Intensive Applications Kim Roberts i. Grid 2005

How do I optically switch my Lightpaths? Local Add Drop > Need to have

How do I optically switch my Lightpaths? Local Add Drop > 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 2

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

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

Hurdle: Fiber Dispersion Management TWc SMF-28 ROADM Photonic Cross-Connect E-LEAF SMF-28 E-LEAF Photonic Cross-Connect

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

Electronic Dispersion Precompensation OSNR vs. distance (10 E-3 BER; 10 Gb/s) Simple Rx 3

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Gb/s) Simple Rx 3 bit MLSE 5 bit MLSE BAD Tx pre-comp (IM-DD) Tx pre-comp (DPSK) GOOD 5 Optical Dispersion Compensation is Obsolete

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

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

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

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

Forward Error Correction > FEC eliminates Bit Errors > Lightpaths with no packet loss

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

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

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

Layer 1 Multicast One layer 1 switch: • 50 Mb/s 70, 000 ways, •

Layer 1 Multicast One layer 1 switch: • 50 Mb/s 70, 000 ways, • 240 Gb/s streams 15 ways Demo US 110 (hardware capacity) HDXc Up to 640 Gb/s OME Up to 160 Gb/s 10 HDX Up to 1. 28 Tb/s single shelf 3. 84 Tb/s as a hub

How can I secure my Lightpath? > Prevent interception of valuable IP or secret

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 11

Lightpath Encryption Demo US 106 > Full OC-192/STM-64 10 G throughput. > One to

Lightpath Encryption Demo US 106 > Full OC-192/STM-64 10 G throughput. > One to twelve lightpaths with separate keys. • 12 x Gig. E used to heavily load the OC-192 as 12 x. STS-1 -16 V > 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 12

Your Challenge > Most protocols are designed for lousy connections > How can you

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

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