title: Adaptive control of waveguide modes using a directional coupler.
abstract: Using adaptive optics (AO) and a directional coupler, we demonstrate adaptive control of linearly polarized (LP) modes in a two mode fiber. The AO feedback is provided by the coupling ratio of the directional coupler, and does not depend on the spatial profiles of optical field distributions. As a proof of concept demonstration, this work confirms the feasibility of using AO and all fiber devices to control the waveguide modes in a multimode network in a quasi-distributed manner.
authors.forename: Peng
authors.initials: P
authors.lastname: Lu
authors.forename: Matthew
authors.initials: M
authors.lastname: Shipton
authors.forename: Anbo
authors.initials: A
authors.lastname: Wang
authors.forename: Yong
authors.initials: Y
authors.lastname: Xu