For fiber optic current sensor (FOCS) application, it is important to get detailed information on the circular and residual linear birefringence of the spun fiber, which the current commercial spec sheets don’t offer directly.
General Photonics has upgraded PSGA-101 instrument with an algorithm which can simultaneously, for the first time, measure both the circular and the residual linear birefringences of a spun fiber – thanks to the high accuracy and repeatability of its patented binary polarization rotator-based technology.
With the PSGA-101 instrument we are able to obtain the thermal coefficients of both circular and linear birefringence, parameters that are critical in the manufacture of high accuracy fiber optic current sensors.
For more info on the technology and validation of the technique, Click on the following link: