JFOPT - fiber optic manufacturer. A Brief History Of Optical Fiber Cables. In 1880, Alexander Graham Bell used an optical voice transmission to send a telephone signal 200 meters into an adjoining room via sunlight reflected into the mouthpiece of a telephone diaphragm that was charged by a battery. Lasers were the next step in the development of fiber optics, as lasers are concentrated light, the devel.

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