Broadband second-harmonic generation in a double-tapered gallium arsenide slab using total internal reflection quasiphase matching

Saha, Ardhendu; Deb, Suman

doi:10.1016/j.ijleo.2014.08.111

Cited by 4 publications

(1 citation statement)

References 19 publications

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“…[7][8][9] More recently, TIR-QPM has come out as an excellent candidate for generating broadband second harmonic in the mid infrared region. [10][11][12][13][14] In our earlier paper, we have analytically demonstrated broadband SHG using TIR-QPM in a tapered slab of isotropic semiconductor using GaAs and ZnSe wherein the SH conversion efficiency was approximately 1%. 10 Later on we have analytically described broadband SHG in similar configuration of ZnTe material to generate highly efficient fractional TIR-QPM.…”

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confidence: 99%

Broadband fractional total internal reflection quasi phase matching based second harmonic generation in reverse tapered isotropic semiconductor considering the effect of nonlinear reflection

Barma

Deb

Saha

2015

J. Nonlinear Optic. Phys. Mat.

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This paper analyzes a highly efficient broadband second-harmonic generator in the mid infrared region using an isotropic reverse tapered semiconductor slab configuration, using fractional total internal reflection quasi-phase matching technique. A computer aided simulation has been performed using ZnTe as the nonlinear material which provides an extremely high conversion efficiency of 22.94% with a 3 dB bandwidth of 200 nm. Effect of varying the slab dimensions on the performance parameters has also been analyzed. Finally, the catastrophic effect caused by destructive interference due to nonlinear law of reflection has also been incorporated in the analysis thereby giving more accurate results.Keywords: Total-internal reflection fractional quasi-phase matching; second-harmonic generation; zinc telluride; reverse tapered; nonlinear law of reflection. * Corresponding author. 1550041-1 J. Nonlinear Optic. Phys. Mat. 2015.24. Downloaded from www.worldscientific.com by PURDUE UNIVERSITY on 06/21/16. For personal use only. 1550041-2 J. Nonlinear Optic. Phys. Mat. 2015.24. Downloaded from www.worldscientific.com by PURDUE UNIVERSITY on 06/21/16. For personal use only.

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