Optical fiber coupler is a device for detachable (active) connection between optical fiber and optical fiber. It precisely butts the two end faces of optical fiber, so that the light energy output from the transmitting fiber can be coupled to the receiving fiber to the maximum extent. This transfer involves channeling the light, which carries data, from a source such as a laser or LED directly into the hair-thin. Optical Fiber Communication 10EC72 Page 94 Fiber Alignment In any fiber optic communication system, in order to increase fiber length there is need to joint the length of fiber.
