The Dispersion and Attenuation Measurement System for Single Mode Optical Fiber

Dispersion and attenuation are two of the most important transmission characteristics for optical fiber.The single-mode fiber has been used widely in long-distance,large-capacity lightwave communication system.Therefore,it is very important and necessary to measure the dispersion and attenuation for single-mode fiber.The concepts of dispersion and attenuation were discussed.The single-mode fiber's dispersion measurement by phase-shift method and the attenuation measurement by insertion method were subsequently given respectively,together with a measurement system.It can be used to measure the dispersion and attenuation in one experimental system,and the system is very simple,high integrated,of low cost and easy operation.