Optical fiber attenuator and method of fabrication

摘要

An optical fiber attenuator is fabricated using an adhesive liquid including submicron light absorbing particles. A portion at the end of a first optical fiber is coated with the liquid. The liquid is spread about the surface of the end of the fiber, as by ultrasonic vibration, to provide a uniform and very thin coat on the fiber. Then the first fiber is spliced at the coated end to an end of a second optical fiber.