Recent advances in long-range high-resolution optical reflectometry (Invited)

Abstract

In this invited talk, three advanced methods to improve both the spatial resolution and the measurement range are presented which paves the way for new horizons in high-end applications. The first one is to develop an optical source with ultra-highly-linear frequency sweeping rate, and use it for optical frequency domain reflectometry (OFDR). The second one is to use linear optical sampling (LOS) technique to measure ultra-short pulse used for optical time domain reflectometry (OTDR) and adopt dispersion compensation scheme. The third one is to use LOS technique for characterizing the ultra-wide linearly chirped signals for pulse compression.