Saturation of the nonlinear index of refraction in semiconductor-doped glass

Coutaz, Jean‐Louis; Kull, M.

doi:10.1364/josab.8.000095

Cited by 113 publications

(30 citation statements)

References 17 publications

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“…One such promising prospect is the design of SDF like CdS 1−x Se x , which possesses extremely high nonlinearity over the conventional silica glasses [36]. Due to its high nonlinearity, the nonlinear response of the material tends to saturate even at moderate power level [37]. Detailed theoretical, as well as experimental, results describing the saturation of nonlinear response in some semiconductor and heavy-metal-doped glasses can be seen in [37][38][39], where the authors with their sophisticated experimental arrangement measured the higher-order nonlinearities and predicted the power threshold corresponding to the saturation of nonlinearity.…”

Section: Introductionmentioning

confidence: 99%

Theoretical investigation of modulational instability in semiconductor doped dispersion decreasing fiber and its cutting edge over the existing fiber systems

Nithyanandan

Raja

2012

J. Opt. Soc. Am. B

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A theoretical study of modulational instability (MI) in the semiconductor doped dispersion decreasing fiber (SD-DDF) is presented. We consider the combination of saturation of nonlinear response and the dispersion decreasing fiber (DDF). The exact dispersion relation is calculated by means of linear stability analysis. Different fiber systems are considered alongside the proposed SD-DDF for insight and to offer the cutting edge of the proposed model over the others. The two extreme physical effects considered lead to an exciting outcome, where decreasing dispersion leads to broadening the spectral width and saturation, on the other hand, suppresses the MI gain and the bandwidth. A bandwidth relation between different fiber systems is presented, and the idea can open the design of a fiber structure with desired dispersion profile by a suitable manipulation of these effects. We propose that instead of using DDF whose bandwidth is limited by the manufacturing constraints, the use of SD-DDF offers better tailoring of the bandwidth profile by suitably altering the saturation parameter. Thus we emphasize that the proposed SD-DDF will be a feature prospect for wide range of applications, especially in the context of ultrashort pulse generation using MI.

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Section: Introductionmentioning

confidence: 99%

Theoretical investigation of modulational instability in semiconductor doped dispersion decreasing fiber and its cutting edge over the existing fiber systems

Nithyanandan

Raja

2012

J. Opt. Soc. Am. B

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“…We focus our attention on the effect of quintic nonlinearity, which has drawn much attention in recent years [21,[23][24][25][26][27][28][29][30][31][32]. Quintic nonlinearity arises as a result of nonlinear saturation in the optical fiber [33,34], which is typically weak. Therefore, the effect of nonlinear saturation on pulse propagation in optical fibers is well described by the quintic NLSE, where the quintic nonlinearity term is treated as a small perturbation [21,[23][24][25]29].…”

Section: Introductionmentioning

confidence: 99%

Effect of quintic nonlinearity on soliton collisions in optical fibers

Soneson

Peleg

2004

Physica D: Nonlinear Phenomena

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“…1,2 Well-known materials that exhibit saturation include some semiconductor-doped glasses (e.g., CdSSe and Schott OG 550 glass), 3,4 , iondoped crystals (e.g., GdAlO 3 :Cr 3+ ), 5 bio-optical media, 6 π-conjugated polymers, 7 and various photorefractive crystals (e.g., LiNbO 3 and SBN). 8,9 The detailed mechanism underlying optical saturation is intricate, but at an atomic level it may be described phenomenologically in terms of the bleaching of excited states under high-intensity illumination.…”

Section: Introductionmentioning

confidence: 99%

Bistable Helmholtz dark spatial optical solitons in materials with self-defocusing saturable nonlinearity

Christian

Lundie

2017

J. Nonlinear Optic. Phys. Mat.

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We present, to the best of our knowledge, the first exact dark spatial solitons of a nonlinear Helmholtz equation with a self-defocusing saturable refractive-index model. These solutions capture oblique (arbitrary-angle) propagation in both the forward and backward directions, and they can also exhibit a bistability characteristic. A detailed derivation is presented, obtained by combining coordinate transformations and directintegration methods, and the corresponding solutions of paraxial theory are recovered asymptotically as a subset. Simulations examine the robustness of the new Helmholtz solitons, with stationary states emerging from a range of perturbed input beams.

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Saturation of the nonlinear index of refraction in semiconductor-doped glass

Cited by 113 publications

References 17 publications

Theoretical investigation of modulational instability in semiconductor doped dispersion decreasing fiber and its cutting edge over the existing fiber systems

Theoretical investigation of modulational instability in semiconductor doped dispersion decreasing fiber and its cutting edge over the existing fiber systems

Effect of quintic nonlinearity on soliton collisions in optical fibers

Bistable Helmholtz dark spatial optical solitons in materials with self-defocusing saturable nonlinearity

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