Effects of higher-order dispersions on soliton-effect pulse compression in a silicon photonic nanowire

Author

Mohebbi, Maryam ; Khormaei, H.

Author_Institution

Dept. of Electr. Eng., Islamic Azad Univ., Qazvin, Iran

fYear

2011

fDate

17-19 May 2011

Firstpage

1

Lastpage

1

Abstract

Effects of higher-order dispersions on soliton-effect pulse compression in a silicon photonic nanowire are numerically investigated in the infrared region of the spectrum. When propagation of femtosecond optical pulses in a nanowire is considered, higher-order dispersions become important and their effects in the generalized nonlinear Schrödinger equation (GNLSE) must be investigated. We show that, by adjusting the core diameter of the nanowire, we can selectively minimize the effects of higher-order dispersions and increase the compression factor. We include the effects of self-phase modulation (SPM), linear loss, two-photon absorption (TPA), and self-steepening in the GNLSE. We show that the TPA loss reduces the compression factor. However, the effect of TPA will be less when the nanowire is optimized for maximum compression by minimizing the effect of the fifth-order dispersion in the GNLSE.

Keywords

Schrodinger equation; absorption; elemental semiconductors; high-speed optical techniques; light propagation; nanowires; nonlinear equations; optical dispersion; optical modulation; optical pulse compression; optical solitons; photonic crystals; silicon; GNLSE; TPA loss; compression factor; femtosecond optical pulse propagation; generalized nonlinear Schrodinger equation; higher-order dispersion; linear loss effect; self-phase modulation; silicon photonic nanowire; soliton-effect pulse compression; two-photon absorption; Higher-order dispersions; pulse compression; silicon nanowire; soliton;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering (ICEE), 2011 19th Iranian Conference on

Conference_Location

Tehran

Print_ISBN

978-1-4577-0730-8

Type

conf

Filename

5955878