The world's ever-changing, constantly upgrading, the survival of the fittest. Busy, skyscrapers today, is inseparable from the optical communication, optical communication so that information such as the shape with the shape, to understand phenomena in the world, you can always concerned about the state of our lives, but also to facilitate our conversation. Optical communication has been integrated into our lives, the days of the mail has been drifting away ......
Then the development of optical communication of what is it?
In ancient times our country has such a story, "Zhou You Wang war drama princes", Zhou You Wang concubine to seize smile lit beacon. Ignite the flames with a furious enemy *** to transmit information, which is an ancient optical communication equipment. So, the ancient flames, fire, and so a start can be seen with the naked eye is the prototype of these optical communication, using the most direct light propagation.
1880, as Bell lightwave carrier transmission using speech, the invention "optical telephone" can be said to be the beginning of the optical communication. After 80 years, explore optical communication transmission medium, due to attenuation, without the cost of fruit.
In 1951, the medical glass fiber (loss threw up 1000dB / Km) loss optical glass too, it is an important factor restricting the development of optical communication.
Until 1966, British Chinese Kao-depth study of optical loss serious problems in the quartz glass fiber, optical loss was found that the main reason for the glass fibers which is caused by excessive amounts of chromium, copper, iron, manganese and other metal ions other impurities, followed by the technology made when drawing the fiber core, cladding interface and the unevenness due to variations in refractive index.
Made by Kao may be made of glass attenuation 20dB / Km of optical fiber communication is referred to as "Father of Fiber Optics."
In 1970 the United States Corning is envisaged that the first high-Kun made a 20dB / Km of optical fiber, although only a few meters long, life only a few hours, but to prove how reducing fiber loss is feasible, practical research conditions to mark the optical fiber communication system with the development of optical communication has entered a stage of vigorous development. In the same year Bell Lab continuous development of semiconductor lasers under continuous vibration high success greenhouse.
Early 1980s, single-mode fiber, and the advent of quantum well lasers;
85 - early 1990s, single-mode fiber with a passage, a single mode laser as a transmitter;
To after 90 years, EDFA and the advent of DFB and the development of low-loss single-mode optical fiber, it is a landmark achievement;
This stage of the 21st century the greatest achievement is reflected in the commercialization of DWDM and the DFB;
Then our future will be how to achieve it.
Optical fiber communication to increasing the development of a high level, the use of fiber optical module can not be separated easily sky communication ETU-LINK is a relatively specialized optical module manufacturers can provide high-performance, high-quality, high-speed optical module , the market there are many mainstream optical module manufacturers Oh, thank you!
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