What is need of DWDM?

Related questions

1. What OSI layer is DWDM?
2. What is OTN Oracle?
3. What is TDM in telecom?
4. What is CWDM mux?
5. How does a fiber optic multiplexer work?
6. How many channels are supported by DWDM?
7. What is the difference between SDH and DWDM?
8. What is IP over DWDM?
9. What is the difference between WDM and DWDM?
10. What is Muxponder in DWDM?

Tags

1. #reserved
2. #wavelength
3. #division
4. #technology
5. #sources
6. #different
7. #close
8. #optical
9. #together
10. #carried
11. #frequency
12. #fiber
13. #spacing
14. #multiplexing
15. #light
16. #dense
17. #signal
18. #separate