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Design and Fabrication of Stretchable Photonic Fibers

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Distributed optical fibre sensing in synthetic fibre ropes and cables

Luc Thévenaz

Distributed strain measurements on synthetic fibre ropes as used in marine applications are reported. The ropes incorporate single mode fibre-optic sensors for strain measurement. A Brillouin-amplification-based distributed strain measuring system has been ...

Society of Photo-Optical Instrumentation Engineers1999

Fault Localisation for optical networks

Jean-Yves Le Boudec, Carmen Mas

A single failure in a communication network may trigger many alarms. When the communication network uses optical fibres as a transmission medium and increases its capacity by using Wavelength Division Multiplexing (WDM) and Space Division Multiplexing (SDM ...

1998

New multichannel Ethernet protocol for passive optical star local area networks using coherent transmission

Philippe Robert, Hector Garcia, Caroline Brisson

A new optical local area network that combines dense Wavelength Division Multiplexing (WDM) techniques and coherent transmission benefits is presented. A new multichannel protocol is specified based on Ethernet, using WDM to carry multiple channels on a si ...

1998

Piezoelectric coatings for active optical fiber devices

Nava Setter, Hans Georg Limberger

A new class of active fiber devices based on piezoelectric coated optical fibers is currently being developed. The piezoelectric coating is used to produce acoustic waves within the optical fiber and these acoustic waves interfere with optical signals pass ...

1997

Design Protection for WDM Optical Networks

Jean-Yves Le Boudec, Olivier Crochat

With WDM networks, the failure of a single link or component may cause the simultaneous failure of several optical channels, potentially making impossible the restoration by rerouting in higher layers directly using the optical network (SDH, ATM, IP). To a ...

1997

Efficient active Bragg grating tunable filters

René Salathé, Hans Georg Limberger

Reflection, transmission and loss filters based on fiber Bragg gratings are key components in future wavelength division multiplexing telecommunication networks. A shift of the Bragg wavelength, λg, can be achieved by applying a strain or heating th ...

Opt. Soc. America1997

Polymer blend mixing and dispersion in the kneading section of a twin-screw extruder

This paper examines the mechanisms by which a polymer is dispersed in a co-rotating twin-screw extruder. An experimental investigation of the morphological evolution has been carried out on a 45-mm co-rotating twin-screw extruder. Polyethylene/polystyrene ...

1996

Cylindrical fiberoptic light diffuser for medical applications

Hubert van den Bergh

BACKGROUND AND OBJECTIVE: A cylindrical light diffuser has been developed mainly for medical applications, including photodynamic therapy (PDT), in particular interstitial PDT, PDT of the bronchi, or intravascular PDT. STUDY DESIGN/MATERIALS AND METHODS: T ...

1996

Automated surface mounting of optical elements

René Salathé, Reymond Clavel, Thomas Sidler

In conclusion a fully automated surface mounting assembly procedure has been developed for mounting optical elements. It is based on low cost universal tripod mounts, free space optical interconnection, and on-line adjustment of the elements. It is charact ...

IEEE1996

Bragg gratings with directional, efficient, and wavelength-selective fiber outcoupling

René Salathé, Hans Georg Limberger

Wavelength demultiplexing is a very promising application of photoinduced fiber gratings. In this paper efficient outcoupling of a very narrow wavelength band, in addition to the usual guided Bragg reflection, is presented. The selective outcoupling gratin ...

Opt. Soc. America1995