The advantages and technical features of coarse wavelength division multiplexer are as follows:
1. Make full use of the low loss band of optical fiber
The coarse wavelength division multiplexer (CWDM) makes full use of the low loss band of optical fiber, increases the transmission capacity of optical fiber, and increases the physical limit of information transmitted by optical fiber by several times.
2. Can transmit multiple signals in a single optical fiber
The coarse wavelength division multiplexer (CWDM) can transmit two or more asynchronous signals in the same optical fiber, which is conducive to the compatibility of digital signals and analog signals, and can flexibly take out or add channels in the middle of the line.
3. Quick and convenient repair and recovery
Coarse wavelength division multiplexer CWDM, because it greatly reduces the use of optical fiber, not only reduces the construction cost, but also because the number of optical fiber is small, when problems occur, it is very convenient to repair.
4. Flexibility
Coarse wavelength division multiplexer CWDM has low requirements for optical fiber system, especially for the fiber project system with few fiber cores laid in the early stage. As long as the power of the system is more than enough, the capacity can be multiplied rapidly.
5. Reduced costs
Coarse wavelength division multiplexer (CWDM), which increases the sharing of active devices, can realize low-cost upgrade for multiple signal transmission and new service increase.
6. Enhanced system reliability
The coarse wavelength division multiplexer CWDM, in the fiber optic system project, can improve the reliability of the system because the active equipment is greatly reduced.
