Optical Communications Technology and Modulation Formats 16 ...

More documents

Recommendations

Info

Carrier Suppressed Return to Zero (CS-RZ)IΦ3/2ππ1/2π043Gbps Data1 -1 0 -1 021.5G Clk21.5G Clk• Intensity modulation format• Slightly more Complex Transmitter Design• Required additional clock modulation• Pulse train has RZ pulse shape with alternateπ shifts between bits slots• Optical Spectrum has suppressed carrier• Higher tolerance to non-linear effects• Higher receiver sensitivityCS-RZ1/2πIm-√2-11√20πRe3/2πCONFIDENTIAL © 2007 STRATALIGHT COMMUNICATIONS ALL RIGHTS RESERVED. 16
Phase Shaped Binary Transmission (PSBT)43GPre-CodeLPF• Intensity modulation formatLASER• Slightly more Complex Transmitter Design• Required data pre-coder + low pass filter43GIPre-CodeLPF• Pulse train has NRZ like pulse shape withsome residual light within “0” symbolsΦ1 1 0 -1 0• Narrow Optical Spectrum• Increased spectral efficiency3/2ππ1/2π0• Increased chromatic dispersion toleranceDuo Binary1/2πIm-√2-11√20πRePSBT3/2πCONFIDENTIAL © 2007 STRATALIGHT COMMUNICATIONS ALL RIGHTS RESERVED. 17
Page 8 and 9: Optical Impairments• Polarization
Page 10 and 11: From 10 Gbps to 40Gbps• Optics•
Page 12 and 13: Modulation SchemesStrataLight propr
Page 14 and 15: Modulation SchemesModulation Attrib
Page 18 and 19: Differential Phase Shift Keying (DP
Page 20 and 21: Transmitted SpectraROADM50GHz Profi
Page 22 and 23: Differential Quaternary Phase Shift
Page 24 and 25: Transmitted SpectraROADM50GHz Profi
Page 26 and 27: Transmitter Block DiagramsPSBTI inN
Page 28 and 29: DWDM Filter CompatibilityStrataLigh
Page 34 and 35: Performance at 40GbpsStrataLight pr
Page 36 and 37: DPSK WDM Penalty• 50G grid: at th
Page 38 and 39: Conclusions and Summary• Metro Ap
Page 40 and 41: Technical LeadershipStrataLight pro
Page 42 and 43: High level market requirements• M
Page 44 and 45: Development solution - PM-QPSKTx Bl

Optical Communications Technology and Modulation Formats 16 ...

Create successful ePaper yourself

Delete template?

Save as template?