title: Measurement of the core proximity in polished fiber substrates and couplers.
abstract: We report recent developments in a technique to measure the thickness of cladding remaining on polished singlemode fiber substrates. This technique relies on the measurement of the throughput attenuation resulting when a drop of liquid of appropriate refractive index is placed on the substrate. Applications to fiber couplers and other all-fiber devices are described.
authors.forename: M J
authors.initials: MJ
authors.lastname: Digonnet
authors.forename: J R
authors.initials: JR
authors.lastname: Feth
authors.forename: L F
authors.initials: LF
authors.lastname: Stokes
authors.forename: H J
authors.initials: HJ
authors.lastname: Shaw