5

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Across
  1. 1. ratio of optical power level for logic 1 to the power level for a logic o
  2. 3. deviation of the actual no of electrons from the average numbers
  3. 5. various signal impairments can reduce the SNR
  4. 6. reduce the noise
  5. 8. reshaping of pulses
  6. 11. boost the signal
  7. 12. intensity fluctuations in the longitudinal modes
  8. 14. noise due to thermal interaction between electrons and vibrating ions
Down
  1. 1. fidelity determination
  2. 2. minimum average optical power level at the photodetector
  3. 4. dynamic line broadening when injection current of laser is directly modulated
  4. 7. due to speckle pattern
  5. 9. height of the eye opening
  6. 10. the chance that a bit is corrupted and received in error.
  7. 13. passive optical network