THE EFFICIENCY INCREASE OF FIBER BRAGG GRATINGS APODIZATION TECHNOLOGY
نویسندگان
چکیده
منابع مشابه
Nonlinear Fiber Bragg Gratings
In this paper we review some of the dominant topics in fiber Bragg gratings (FBGs). The combination of theory and simulations shows that these structures can use in filters, nonlinear fiber optical applications, soliton propagations etc. We discussed the theory of FBGs, grating solitons, Bragg soliton generation in intrinsic media and birefringence effects in FBGs together with some numerical s...
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We present a new interferometric technique to write apodized Bragg gratings. Along the fiber, two UV-pulses interfere with a variable time delay creating a gaussian apodization profile which strongly reduces the reflectivity side-lobes. This method allows writing of truly apodized gratings by single exposure of a uniform phase-mask. Introduction: In optical communication systems, applications o...
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The reliability and reproducibility of regenerated gratings for mass production is assessed through simultaneous bulk regeneration of 10 gratings. The gratings are characterized and variations are compared after each stage of fabrication, including seed (room-temperature UV fabrication), regeneration (annealing at 850°C), and postannealing (annealing at 1100°C). In terms of Bragg wavelength (λ(...
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This thesis is mainly a study of theoretical issues in the field of fiber Bragg gratings. The synthesis problem of gratings is investigated in detail. This applies to synthesis based on desired, complex spectra in reflection as well as in transmission. In addition, methods for characterization of fiber gratings are proposed. For the synthesis problem of gratings, a genetic algorithm and a layer...
متن کاملInteraction of Bragg solitons in fiber gratings
We investigate numerically the interaction between two copropagating Bragg solitons in a fiber grating. We find that, in the low-intensity limit, the interaction is reminiscent of the nonlinear Schrödinger solitons in that Bragg solitons attract or repel each other, depending on their relative phases. However, the relative phase between two Bragg solitons is found to depend on their initial sep...
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ژورنال
عنوان ژورنال: Applied photonics
سال: 2016
ISSN: 2411-4367
DOI: 10.15593/2411-4367/2016.03.04