1. Using the optical splitting technology, the two ends of the optical fiber are respectively connected with the optical splitter, and each optical signal is modulated into one optical fiber and transmitted to the other end, and the other end demodulates each optical signal for all users by using the same reverse technology.

2. Use switches at both ends of the optical fiber to collect all data signals into a network cable, which is connected to the optical fiber transceiver and transmitted to the other end through the optical fiber. The other end is converted into an electrical signal by an optical transceiver, and then connected to a switch, which is distributed to various users.

Extended data:

Polarization maintaining fiber will have a great market demand in the next few years. With the rapid development of new technologies and new products in the world, polarization maintaining fiber will develop in the following directions:

(1) Making use of the new technology of photonic crystal fiber to manufacture new high-performance polarization-maintaining fiber;

(2) Developing temperature adaptive polarization maintaining fiber to meet the needs of aerospace and other fields;

(3) Developing various rare-earth doped polarization-maintaining fibers to meet the requirements of optical amplifiers and other devices;

(4) Developing fluoride polarization maintaining fiber to promote the development of fiber interference technology in the field of infrared astronomy technology;

(5) Low attenuation polarization-maintaining fiber: With the continuous improvement of single-mode fiber technology, loss, material dispersion and waveguide dispersion are no longer the main factors affecting optical fiber communication. Polarization mode dispersion (PMD) of single-mode fiber has gradually become the most serious bottleneck limiting the quality of optical fiber communication, especially in high-speed optical fiber communication systems of 10 Gbit/s and above.

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