title: LP(01)-LP(02) interferometric fiber-optic sensing using phase-dependent loss in a light tap.
abstract: The intensity of light radiated from a fiber-optic light tap is observed to depend sensitively on the phase difference between LP(01) and LP(02) modes in a few-mode fiber. This observation is used to design a novel dual-mode interferometer in which light loss through the light tap is monitored, eliminating the need for a bulky spatial filter at the exit end of the fiber. Application of the device as an interferometric temperature sensor is described.
authors.forename: A
authors.initials: A
authors.lastname: Sharma
authors.forename: R
authors.initials: R
authors.lastname: Posey
authors.forename: L
authors.initials: L
authors.lastname: Phillips
authors.forename: D
authors.initials: D
authors.lastname: Diggs