Describe DWDM development of multiple wavelength with the help of a neat diagram. State its advantages also

Fig shows DWDM deployment on an OC-192 trunk ring for wavelength.

DWDM is a technology that puts together multiplexes data signals from different sources so, they can share a single optical fiber pair while maintaining complete partition of the data stream.

Individual signal is carried on a separate light wavelength. The dense part of DWDM refers to the fact that more than 80 separate wavelength, each about 0.8 of a nano-meter (nm) wide can short a single optical fiber.

DWDM allows enormous amount of data to traverse a single network link. Because they are

carried an clear wavelength, the streams also called channel do not interfere with each other.

Consequently data integrity if maintained of well as any security related positioning is also maintained.

Advantage:-

i) Improve scalability

ii) Provide extra resilience

iii) Maximum Capacity system available.

iv) Greater fiber capacity

v) Easier network expansion

vi) Can conserve switched bandwidth

vii) DWDM System Capable of longer span length