Desain Alat Ukur Rugi-Rugi Akibat Macrobending pada Multi-Mode Optical Fiber Berbasis Personal Computer

It has been done research on the design of measuring instruments macrobending losses due to the multi-mode optical fiber-based personal computer. As for the background of this research is that the fiber optic sensor is a technology base that can be applied to many sensing applications,the development of computer technology is now growing rapidly also have an impact on the development of optical fiber technology. The design tool consists of measuring the optical fiber system, system hardware consists of a system interface, power supply, motor driver and assembler fotodetector system, bending systems and software systems. Optical fiber systems was built using a fiber coupler 1x2 with a percentage of the output intensity of 50% half of them was, in the form of a circle with a diameter of 5 mm variation in the amount of twist. The treatments were performed on a fiber optic system in the form of pressure that lead to change in light intensity. The results of the intensity change to be inputs to the system hardware then is passed through the system software. The software was built using Delphi7.0 capable to work in real-time scanning of the light intensity. The results showed that measuring instruments can be used to perform measurements macrobending losses as the greater number of turns, the lower the intensity of light was. Keywords : macrobending, multi-mode optical fiber, personal compute