Journal ArticleDOI
Fiber Raman gain amplifier performance study using simple coupled-mode analysis
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TLDR
In this paper, a premier report based on coupledmode analysis (CMA) is presented to analyze and predict the performance of fiber Raman gain amplifier (FRGA) for the first time, as per our knowledge, using coaxial structure consisting of step-index profiles in both inner and outer cores in terms of effective area.Abstract:
The propagation characteristics of doped fiber amplifier have, already, been analyzed using simple coupled-mode analysis (CMA), which steers the interests to apply this simple theory to study the amplification performance of fiber Raman gain amplifier (FRGA) But such study is yet to be done for FRGA In this paper, a premier report based on CMA is presented to analyze and predict the performance of FRGA for first time, as per our knowledge, using coaxial structure consisting of step-index profiles in both inner and outer cores in terms of effective area, Raman gain coefficient, and effective Raman gain coefficient In our investigation, we use single pump to compute and compare our results with the results obtained by involved matrix method and a fairly excellent match over a wide region of frequency shift is reportedread more
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Book ChapterDOI
An Introduction to Fiber Optics
TL;DR: This chapter is a starting point to look around and see where you’re going before you dig into details, and put fiber optics and communications into context and show how they go together.
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Investigation of coupling of a laser diode to photonic crystal fiber via hyperbolic microlens on the fiber tip by ABCD matrix formalism
TL;DR: In this paper, a simple and accurate theoretical investigation is presented, based on a novel, effective, and straight-forward ABCD matrix technique, in relation to estimation of optimum coupling efficiency between the laser diode and the photonic crystal fiber (PCF) with a hyperbolic microlens (HML) on its tip.
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Coupling of a laser diode to single mode circular core trapezoidal index fiber via hyperbolic microlens on the fiber tip and construction of empirical relations to determine the optimum back focal length
TL;DR: In this article, the fiber tip based hyperbolic microlens coupling efficiency of circular core trapezoidal index single mode fiber and a laser diode was theoretically studied and the corresponding analytical expressions were formulated considering ABCD matrix for hyper bolic micro-lens following paraxial approximation and also Gaussian field distributions are considered for both the source and the fiber.
References
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Journal ArticleDOI
Effect of dip in refractive index profile on fiber Raman gain amplifier performance
TL;DR: In this paper, the effect of linear dip in the inner core of a coaxial fiber Raman gain amplifier having step index inner and outer cores in the structure on the amplifier performance was studied and reported.
Journal ArticleDOI
Effect of variation of core gap radius on the performance of dual concentric core Raman fiber amplifier
TL;DR: In this article, the core gap radius, the distance between two concentric cores of a single mode fiber Raman Amplifier (FRA), has been studied based on scalar analysis.