Using wavelength division multiplexing (wdm)‎ to upgrade infrastructure optical fiber communication systems

الملخص EN

In this paper we optimized optical fiber length in WDM single pulse propagation in single mode fiber (SMF-28).Their results are calculated , tested ,and verified using Optisystem7.0 for protect licensed product based company.

Only point-to-point optical fiber links are considered in this work.

Due to the increasing demand for more bandwidth, optical networks are becoming more and more complex.

Over the next few years the growth of existing services and the introduction of new ones will greatly increase traffic in telecommunication networks.

Some services, such as normal telephony, will grow slowly, whereas newer services, such as mobile telephony, data and video traffic, will expand very rapidly.

Future services will vary widely in terms of the required channel occupancy.

Fiber length from (0km-120km), with (bit rate=2.5 Gb/s) are acceptable through (Q-Factor and Min-BER).

From actual underground sample optical fiber link about (82km) works in Ministry of Communication in Republic of Iraq, then compares with actual, and practical results in this paper appears acceptable.