1. Chapter -1
Fiber optics
Er.Rashmi

3. Concepts of Analog and digital Signal

6. Example of Digital signal
Digital signals are commonly referred to as square wave or clock signals
Their minimum value must be 0 volts and their maximum value must be 5 volts.
They can be periodic (repeating) or non-periodic
The time the signal is high (ts) can vary anywhere from 1% of the period to 99% of the period

8. Multiplexing
what is multiplexing?

10. Types of multiplexing TDM (TIME division multiplexing)
FDM (Frequency division mux)
WDM (Wavelength division mux)

12. DIGITAL COMMUNICATION BY Er. Vishal Dheer.
TDMA OVERVIEW
7/5/2019
DIGITAL COMMUNICATION BY Er. Vishal Dheer.

13. FDM

14. DIGITAL COMMUNICATION BY Er. Vishal Dheer.
FDMA OVERVIEW
7/5/2019
DIGITAL COMMUNICATION BY Er. Vishal Dheer.

15. WDM

17. What is modulation?

19. Modulation Formats
RZ (Return to zero) NRZ (Non-return to zero)

21. Consider data 010110 and make NRZ and RZ format.