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Theoretical analysis and fabrication of tapered fiber

open access: yesOptik, 2013
Adiabaticity criteria and optimal shapes for tapered fiber are theoretically analyzed. In the analysis, it is discovered that a narrower taper waist can be achieved by using a small hot-zone length or increases the elongation distance.
Harith Ahmad, K S Lim, K Dimyati
exaly   +4 more sources
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Supercontinuum generation in tapered fibers

Optics Letters, 2000
Supercontinuum light with a spectrum more than two octaves broad (370-1545 nm at the 20-dB level) was generated in a standard telecommunications fiber by femtosecond pulses from an unamplified Ti:sapphire laser. The fiber had been tapered to a diameter of :2mum over a 90-mm length. The pulse energy was 3.9 nJ (average power, 300 mW).
T A, Birks, W J, Wadsworth, P S, Russell
openaire   +2 more sources

Tapered Fibers: An Overview

SPIE Proceedings, 1988
Fused tapered couplers are typically cladding-mode devices although the effect of the core is not always negligible. Tapers of single fibers may be used as a building-block to their understanding. If the tapering is not slow, then higher-order mode coupling effects occur. This degrades the coupling between fibers in a fused coupler.
R. J. Black   +4 more
openaire   +1 more source

The shape of fiber tapers

Journal of Lightwave Technology, 1992
A model for the shape of optical fiber tapers, formed by stretching a fiber in a heat source of varying length, is presented. Simple assumptions avoid any need for the techniques of fluid mechanics. It is found that any decreasing shape of taper can be produced.
T.A. Birks, Y.W. Li
openaire   +1 more source

Tapered polarizing anisotropic fibers

Optics Letters, 1988
Under the assumption of weak guidance and weak anisotropy, tapered anisotropic fibers with equal or nearly equal anisotropy in the core and cladding are discussed theoretically. This study shows that, by properly choosing the external refractive index, one of the polarized modes can be filtered by the taper in an anisotropic fiber while the other ...
openaire   +2 more sources

A fiber-tapering problem

Nonlinear Analysis: Theory, Methods & Applications, 1990
A fiber tapering problem is described as follows: \[ A_ t+(uA)_ x=0,\quad A(x,t)>0,\quad (\mu Au_ x)=0,\text{ for ...
openaire   +2 more sources

Liquid-crystal-clad tapered fibers

Optics Letters, 1986
The capability of changing the optical output of a tapered single-mode fiber by using a liquid crystal as an electrelectrooptical medium is shown.
C, Veilleux, J, Lapierre, J, Bures
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Thulium fiber laser lithotripsy using tapered fibers

Lasers in Surgery and Medicine, 2010
AbstractIntroductionThe Thulium fiber laser has recently been tested as a potential alternative to the Holmium:YAG laser for lithotripsy. This study explores use of a short taper for expanding the Thulium fiber laser beam at the distal tip of a small‐core fiber.MethodsThulium fiber laser radiation with a wavelength of 1,908 nm, 10 Hz pulse rate, 70 mJ ...
Richard L, Blackmon   +2 more
openaire   +2 more sources

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