title: Selective filling of photonic crystal fibers using focused ion beam milled microchannels.
abstract: We introduce a versatile, robust, and integrated technique to selectively fill fluid into a desired pattern of air holes in a photonic crystal fiber (PCF). Focused ion beam (FIB) is used to efficiently mill a microchannel on the end facet of a PCF before it is spliced to a single-mode fiber (SMF). Selected air holes are therefore exposed to the atmosphere through the microchannel for fluid filling. A low-loss in-line tunable optical hybrid fiber device is demonstrated by using such a technique.
authors.affiliation: Department of Micro- and Nanotechnology, Technical University of Denmark, Kgs. Lyngby, Denmark. Fei.Wang@nanotech.dtu.dk
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
authors.forename: Wu
authors.initials: W
authors.lastname: Yuan
authors.forename: Ole
authors.initials: O
authors.lastname: Hansen
authors.forename: Ole
authors.initials: O
authors.lastname: Bang