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Direct Detection or Coherent? EFFECT Photonics explains
The document compares direct detection and coherent detection in optical communication, detailing their capabilities regarding data rates, transmission distances, and network upgrades. It describes the processes involved, including the conversion of electrical signals to optical and the impact of dispersion on signal integrity. Coherent detection utilizes amplitude, phase, and polarization signals for improved performance over longer distances.
Direct Detection or Coherent? EFFECT Photonics explains
- 1. Coherent vs DD–Logo intro
- 2. Coherent vs DD– Title card Direct Detection or Coherent?
- 3. Video joost fullscreen
- 4. Room for PIP Coherentvs DD – Scene 1 Direct Detection 1G 120km
- 5. Direct Detection 10G80km Room for PIP Coherent vs DD – Scene 1
- 6. Direct Detection 25G15km Room for PIP Coherent vs DD – Scene 1
- 7. Direct Detection 56G1km Room for PIP Coherent vs DD – Scene 1
- 8. Coherent 400G 400+km Roomfor PIP Coherent vs DD – Scene 1
- 9. Coherent 400G 120km HigherData Rates 1 Longer distances 2 Simplified network upgrades 3 Room for PIP Coherent vs DD – Scene 1
- 10. The laser convertselectrical to optical signals Room for PIP Coherent vs DD – Scene 2
- 11. The photo diodeconverts the light back into electrical signals Room for PIP Coherent vs DD – Scene 2
- 12. Light passing throughthe fiber gets dispersed Room for PIP Coherent vs DD – Scene 2
- 13. As speed goesup, pulses get closer together .. Room for PIP Coherent vs DD – Scene 2
- 14. … and startoverlapping Room for PIP Coherent vs DD – Scene 2
- 15. To overcome dispersioneffects and increase transmission speeds, an alternative approach is needed. Room for PIP Coherent vs DD – Scene 3
- 16. Apart from usingjust the amplitude Room for PIP Coherent vs DD – Scene 3
- 17. .. we canalso use the phase Room for PIP Coherent vs DD – Scene 3
- 18. .. and thepolarization Room for PIP Coherent vs DD – Scene 3
- 19. .. and polarization Roomfor PIP Coherent vs DD – Scene 3
- 20. .. and polarization Roomfor PIP Coherent vs DD – Scene 3 OPTIONAL
- 21. Amplitude Room for PIP Coherentvs DD – Scene 3
- 22. Phase Room for PIP Coherentvs DD – Scene 3
- 23. Polarization Room for PIP Coherentvs DD – Scene 3
- 24. Incoming signal combingamplitude, phase and polarization Room for PIP Coherent vs DD – Scene 4
- 25. Local oscillator referencesignal Incoming signal combing amplitude, phase and polarization Room for PIP Coherent vs DD – Scene 4
- 26. By mixing thetwo signals coherently... Room for PIP Coherent vs DD – Scene 4
- 27. By mixing thetwo signals coherently... Room for PIP Coherent vs DD – Scene 4
- 28. … we canreconstruct the information contained in the signal Amplitude Phase Amplitude Phase Room for PIP Coherent vs DD – Scene 4
- 29. The Digital SignalProcessor compensates for transmission impairments Room for PIP Coherent vs DD – Scene 4
- 30. Direct Detection orCoherent? Higher Data Rates 1 Room for PIP Coherent vs DD – Scene 4
- 31. Direct Detection orCoherent? Higher Data Rates 1 Longer distances 2 Room for PIP Coherent vs DD – Scene 4
- 32. Direct Detection orCoherent? Higher Data Rates 1 2 Simplified network upgrades 3 Longer distances Room for PIP Coherent vs DD – Scene 4
- 33. Coherent vs DD–Logo outro