Laser working substance has been included crystal

Laser working substance has been included crystal, glass, fiber, gas, semiconductor,

electronics, fluid and free hundreds of species. After the birth of the laser, the laser-based laser technology has been widely used in military, economic, industry and agriculture had a

significant impact and achieved good economic and social benefits. This article simply lists the laser in the field in many areas and the development of applications and laser technology now. Although the atmospheric absorption

and dispersion makes use of laser communication have some boundaries on the ground, but now the use of gas lasers to create a good climate in the evening to transmit information over hundreds of

kilometers, in a good climate for up to several tens of kilometers during the day and transmit information the equipment. The member discount is a kind of fabulous promotion means of Laser Pointer

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Optical communication can not only transmit telephone, and can transmit data, fax, television and video telephony. Research is now focused on increasing the communication distance, improve all-

weather performance and transmission rates and other aspects of mobile communications [4]. The 21st century is the era of optical technology advances, atmospheric laser communications technology is

bound to have a greater improvement and development, especially in complex electromagnetic spectrum, an increasingly strong electronic interference battlefield environment, optical communication is

very important. Therefore, laser communications research and development, increase the communication distance, all-day mobile communications, electronic warfare and communications is need for

confrontation, one of the trends of future development. The member discount of Laser Pointer is only valid during this month.
Free-space laser communication is the use of outer space as a carrier of laser high-speed, large capacity, high performance spatial confidential communications. Including deep space, orbit, low

earth orbit, the orbit Q of optical communications, there are GEO (geosyn-chronous earth orbit, GEO) a GEO, GEO-LEO (10w-earth orbit, LEO), LEO-LEO, LEO one ground and other forms, but also

includes communications between the satellite and ground stations. Space fleet Command is the military application of space optical communications goals. The store of Laser Pointer will make the

fascinating member card of Laser Pointer for the member.