Optical Fibre Components Calibration Setup with Thermal Compensation Based on FBG Sensors

In this work, we describe the design, implementation and testing of a unique automated measurement system that enables the measurement and characterization of parameters of passive fiber optical elements. The system also allows the calibration of both passive and active optical elements in environments with different temperatures using a thermal chamber. It is especially important if the elements are used outdoors in extreme temperature conditions. We use an optical spectrum analyzer and a tunable laser in the range of 1520 - 1600 nm. Temperature is measured by FBG sensors. This is an uncommon solution too. The insertion losses of optical hubs are measured at different temperatures.