title: Measurement of distributed mode coupling in a few-mode fiber using a reconfigurable Brillouin OTDR.
abstract: We report nondisruptive measurement of distributed mode coupling along a five-mode fiber (5MF) using a reconfigurable Brillouin optical time domain reflectometer (OTDR) based on programmable spatial light modulators (SLMs). Mode coupling between LP01 mode and higher order modes LP11a,b and LP21a,b is successfully characterized with a spatial resolution of 50 m.
authors.forename: An
authors.initials: A
authors.lastname: Li
authors.forename: Yifei
authors.initials: Y
authors.lastname: Wang
authors.forename: Qian
authors.initials: Q
authors.lastname: Hu
authors.forename: Di
authors.initials: D
authors.lastname: Che
authors.forename: Xi
authors.initials: X
authors.lastname: Chen
authors.forename: William
authors.initials: W
authors.lastname: Shieh