What is the practical application of optical fiber

(1) fiber-optic communications - information superhighway
Laser is the ideal light source for optical fiber communication. Fiber diameter less than 0.1 mm, but in this little information on the channel, in theory, but the phone capable of delivering 10 billion road, 100 million road-quality TV programs, and free from electromagnetic interference, Information loss is minimal. At present, one pair of 0.65 mm diameter copper wire can only provide 24-channel telephone, including a diameter of 76.2 mm coaxial tube 22 coaxial cable, while only way phone or sending 40,000 23 two television channels, while the use of copper or other metal wire, it will take a lot of space, and the price is high, will be subject to electromagnetic interference.

Optical fiber raw material is our common quartz. 1 kg of high purity quartz glass can be drawn out of thousands of kilometers of optical fiber, to create 100 km of road phone 1800 coaxial cable you need to consume 12 tons of copper, lead and 50 tons of copper cable diameter shaft cable 1/50-1/250, its weight is only one percent of the latter. Due to small size, light weight, with holes along the cable laying, pipeline construction cost savings, long haul fiber optic cable instead of using cables, the cost savings of 30%. In aerospace and military aviation but also to show their talents, known as the materials science of the supernatural.

(2) medical endoscope
Optical fiber can be used in the esophagus, rectum, bladder, uterus, stomach and other deep exploratory endoscopy (gastroscopy, blood vessels mirror, etc.) of optical components and do not have to cut the skin directly into the body's internal, surgical removal of cancer tissue laser knife, that is, from fiber-optic laser delivery to the surgical site.

(3) Lighting and light transmission
Optical fiber can be achieved using a multi-point light source lighting, cable lighting, can use plastic optical fiber cable as the transmission of sunlight underwater, underground lighting. As soft and easily bent optical fiber can be made into any shape, and low power consumption, light quality and stability, soft gloss, color widely, the best lighting in the future, such as combined with the use of solar energy will be the most economical source . Future high-rise buildings, auditoriums, hotels, hospitals, entertainment, and even family can be made directly with fiber-optic ceiling or walls, as well as color pictures and weaving fiber optics, etc., can also be used for roads, public facilities, street lights, plaza lighting and shop window advertising. In addition, can also be used flammable, explosive, corrosive moisture and should not set up an environment where power lines and electrical lighting as a safety light.

(4) fiber clothing
A French company pioneered the fiber abrasive blasting technology. After using this approach will enable the laser beam propagation along the optical fiber wrapped not by its role in the outer jacket of a reflective impact. In this optical fiber bundles can be woven into the fabric light to transmit information. These signals in the dark clouds or smoke, you can play a significant life-saving role. If the sensor with optical fiber fabric, with the fire service, its sensors on the device can detect chemical hazards and through the light-emitting display as a warning to other nearby personnel. If this fabric is made of special forces wearing camouflage uniforms, really become a "chameleon."