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In the actual operation process, in order to reasonably utilize the broadband resources generated by the single-mode fiber in the 1.55pm low-loss region, it is necessary to divide the low-loss regi...

The relationship between the communication transmission network and the business has become more and more complicated under the circumstance of the sharply rising business volume.

DWDM can combine and transmit different wavelengths simultaneously in the same fiber. In order to be effective, one fiber is converted into multiple virtual fibers.

The basic principle of frequency division multiplexing is to set up multiple channels on a communication line, the signals of each channel are modulated with different carrier frequencies, and the ...

First, the cost of setting up communication lines in communication engineering is quite high, and it is necessary to make full use of the capacity of communication lines;

This technology divides the space into different channels, so as to realize the reuse of frequencies and achieve the purpose of channel capacity expansion.

Code division multiple access is a way of distinguishing channels by using address code, time and frequency together. The characteristic of CDMA is that each user has a specific address code, and t...

Wavelength Division Multiplexing Technology WDM (Wavelength Division Multiplexing)

Time division multiplexing takes channel transmission time as the division object, and realizes multiplexing by assigning non-overlapping time segments to multiple channels.

Frequency Division Multiplexing Technology FDM (Frequency Division Multiplexing).

We usually use the multiplexing technology on the most commonly used telephone lines to surf the Internet, so when you surf the Internet, your family can also make calls.

Multiplexing technology is a technology that combines multiple low-speed channels into a high-speed channel, which can effectively improve the utilization rate of data links, so that a high-speed b...