Abstract
In this work an experimental setup that allows evaluating the group velocity dispersion (GVD) in optical fibers with a hundreds of meters length is presented. The setup was composed by an optical fiber Sagnac Interferometer, SI. The optical fiber under test and a phase modulator were placed inside of the SI loop. The main idea is to place asymmetrically the phase modulator inside the SI loop. This means that the fiber length in both sides of the phase modulator, L1 and L2, satisfy L1<<L2. This unbalance allows evaluating the GVD due to the fact that contra-propagating beams travel with different propagation constants. With this technique it was possible to measure GVD with a picosecond temporal resolution without using a fast detector or wide band-width equipment. Results of GVD measurement performed with the developed algorithm are presented.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
