منابع مشابه
Asymptotic analysis of Bragg fibers.
Using an asymptotic analysis, we obtain an eigenvalue equation for the general mode dispersion in Bragg fibers. The asymptotic analysis is applied to calculate the dispersion relation and the field distribution of TE modes in a Bragg fiber. We compare the asymptotic results with exact solutions and find excellent agreement between them. This asymptotic approach greatly simplifies the analysis a...
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ABSTRACT: In this paper, we have presented a single-mode high-index Bragg fiber having two zero dispersion wavelengths one at 813 nm with a dispersion slope of 0.2745 ps/nm km and another one at 1550 nm. The Bragg fiber has a high-index core made up of silica and is consisting of alternating layers of air and silica. Due to its low intrinsic losses (<1 dB/km), the fiber is suitable for telecom ...
متن کاملFiber comb filters based on UV-writing Bragg gratings in graded-index multimode fibers.
We report a new kind of comb filters based on fiber Bragg gratings in graded-index multimode fibers. It produces two groups of spectra with a total of 36 reflection peaks that correspond to 18 principal modes and cross coupled modes. The mode indices and wavelength spacings have been investigated theoretically and experimentally. This kind of comb filters may be used to construct multi-waveleng...
متن کاملAsymptotic analysis of silicon based Bragg fibers.
We developed an asymptotic formalism that fully characterizes the propagation and loss properties of a Bragg fiber with finite cladding layers. The formalism is subsequently applied to miniature air-core Bragg fibers with Silicon-based cladding mirrors. The fiber performance is analyzed as a function of the Bragg cladding geometries, the core radius and the material absorption. The problems of ...
متن کاملEtching Bragg gratings in Panda fibers for the temperature-independent refractive index sensing.
We demonstrate the evolution of the Bragg gratings inscribed in Panda fibers with chemical etching. The resonance wavelengths can blueshift with cladding reduction similar to the conventional counterparts. But the wavelength separation between the two polarizations is co-determined by the stress and the asymmetric shape effects. The fast and slow axes of the fiber can be reversed with each othe...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2012
ISSN: 1094-4087
DOI: 10.1364/oe.20.018795