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We present a simple technique to precisely and continuously adjust the resonance wavelengths of long-period cladding-mode-coupled gratings without strongly affecting the coupling strength. The main principle of this method is based on the strong dependence ...
Swissmetal recently completed a contract to manufacture 200 m of NbTi cable-in-conduit prototype conductor to be used in the Wendelstein 7-X superconducting magnet system. The conductor consists of a 192 strand, four stage NbTi cable in an aluminium alloy ...
Among all scattering processes, spontaneous Brillouin scattering originates from the interaction between light and thermal acoustic waves propagating in the medium. The interference resulting from the incident light and its spontaneously backscattered frac ...
The failure of fiber-reinforced ceramic and metal matrix composites under a fixed load for extended times occurs because of strength degradation in the constituent fibers. Specifically, the ceramic fibers possess a Weibull strength distribution caused by c ...
We describe a new fluorescence imaging device for clin. cancer photodetection in hollow organs in which the tumor/normal tissue contrast is derived from the fluorescence lifetime of endogenous or exogenous fluorochromes. This fluorescence lifetime contrast ...
This paper describes recent progress in the development of Nb3Sn wires in Switzerland using the internal tin method The work war carried out in close collaboration between the Fusion Technology Division of CRPP and Swissmetal, with the emphasis on conducto ...
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 ...
Brillouin gain spectrum measurement along an optical fiber has recently gained a lot of interests owing to its potentiality for strain monitoring in installed telecom cables. The purpose of the paper is to show that this potentiality is now effective, sinc ...
This paper presents a new method for writing and erasing a birefringence in optical fibers by polarized UV side-exposure. This experiment gives new insight into the origin of the induced birefringence and some applications are outlined ...
Summary form only given. All-fiber phase modulators have recently received considerable attention because of their advantages for applications in the field of lightwave technology. In this paper, new results are presented on the characterization of all-fib ...
