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Supercontinuum generation in tapered fibers
Optics Letters, 2000Supercontinuum 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
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Tapered polarizing anisotropic fibers
Optics Letters, 1988Under 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 ...
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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
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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
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Tapered photonic crystal fibers
SPIE Proceedings, 2006Tapered photonic crystal fibers (PCFs), similar to tapered conventional fibers, can be either adiabatic of nonadiabatic. Here, we examine the adiabaticity of the PCF taper and obtain three-dimensional plots showing the evolution of power flow inside the tapered PCF. Also, we analyze different taper shapes, such as the linear taper, raised-cosine taper,
M. R. Albandakji +2 more
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IEEE Photonics Technology Letters, 2006
We present several simple sensitive fiber-optics-based sensors that utilize a biconical fiber taper. A displacement sensor with 100-nm accuracy, a temperature monitor with sensitivity DeltaT~1degC, and a refractive-index sensor capable of measuring Deltan~1.42times10-5 are demonstrated using tapers made from a standard single-mode ...
Khanh Quoc Kieu, Masud Mansuripur
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We present several simple sensitive fiber-optics-based sensors that utilize a biconical fiber taper. A displacement sensor with 100-nm accuracy, a temperature monitor with sensitivity DeltaT~1degC, and a refractive-index sensor capable of measuring Deltan~1.42times10-5 are demonstrated using tapers made from a standard single-mode ...
Khanh Quoc Kieu, Masud Mansuripur
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Biconical-taper single-mode fiber coupler
Optics Letters, 1981Single-mode fiber couplers produced as fused biconical-taper structures are reported on. The devices exhibit low loss (0.5 dB), arbitrary branching ratio, polarization independence, and broadband operation in wavelength.
B S, Kawasaki, K O, Hill, R G, Lamont
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Dye lasers using tapered optical fibers
Applied Optics, 1993A new type of dye laser operating in a single-mode optical fiber has been studied. The gain is produced by surrounding a tapered section of the fiber with laser dye. Interaction of the light in the fiber with the laser dye is achieved through the exposed evanescent field at the taper waist.
G J, Pendock, H S, Mackenzie, F P, Payne
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Optics Letters, 2016
Employing finite difference time domain simulations, we demonstrate that electromagnetic field enhancement is substantially greater for tapered optical fibers with plasmonic nanostructures present on their tips as compared with non-tapered optical fibers having those plasmonic nanostructures, or with tapered optical fibers without the plasmonic ...
Priten, Savaliya, Anuj, Dhawan
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Employing finite difference time domain simulations, we demonstrate that electromagnetic field enhancement is substantially greater for tapered optical fibers with plasmonic nanostructures present on their tips as compared with non-tapered optical fibers having those plasmonic nanostructures, or with tapered optical fibers without the plasmonic ...
Priten, Savaliya, Anuj, Dhawan
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Long-period cascaded fiber taper filters
Applied Optics, 2014Fiber filters based on periodic cascaded tapered fiber sections are demonstrated. The filters consist of up to seven tapered sections separated periodically by more than 3 mm from center to center, with nominal tapered sections of 1 mm×1 mm×1 mm longitudinal dimensions.
A, Martinez-Rios +2 more
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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 ...
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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