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Difference between laser transmission and microwave transmission
In the wireless monitoring system, the microwave communication is generally used. The microwave communication is transmitted by microwave, and the microwave is a type of electromagnetic wave. The frequency is between 300MHz and 300GHz. What is the difference between microwave transmission and laser transmission? What? Here are the differences between the two.
To talk about the difference between laser and microwave, the most obvious is their frequency. The frequency of the laser is up to several hundred million megahertz, which is more than 100,000 times of the microwave frequency. However, since the frequency of the laser is too large, the wavelength of the laser is very short, so the volatility of the laser is worse than that of the microwave.
However, since the laser has the duality (wave and particle) characteristic of light waves, it is highly regarded in the communication industry where military communication is highly demanding.
The working principle of laser communication and microwave communication is almost the same. Firstly, the laser is emitted as a carrier through the transmitting end, modulated by the modulator, sent to the receiving end of the back end, and then decoded by the decoder of the receiving end. The difference between the two is that laser communication uses a laser as a carrier, while microwave communication uses microwave as an information carrier.
Both laser and microwave can be divided into wired and wireless transmission, wired can be transmitted through optical fiber, and wireless can be transmitted through air. But the laser can also propagate underwater, while microwaves don't.
Microwave transmission is more susceptible to interference than laser transmission, but as long as the site is located without excessive interference sources, its practical microwave transmission is not bad. In addition, laser transmission is linear transmission, while microwave transmission can be transmitted by diffraction. Therefore, microwave transmission is more widely used than laser transmission.
The last thing I have to mention is the price difference between laser transmission equipment and microwave transmission equipment. There is no doubt that laser equipment is more expensive than microwave equipment. In the case of civil and commercial use, it is more cost-effective to use microwave transmission equipment. In some special environments, or where the confidentiality requirements are high, it is more appropriate to use a laser.
The above is the relevant introduction about the difference between microwave transmission and laser transmission. More professional knowledge is welcome to pay attention to the Tengyuan Zhituo public number. If you have the needs and help of wireless monitoring, please contact customer service staff, we will provide you with Detailed answer.