Title :
Nonlinear property analysis of long-period fiber gratings using discretized coupled-mode theory
Author :
Jeong, Yoonchan ; Lee, Byoungho
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
9/1/1999 12:00:00 AM
Abstract :
We present generalized mathematical expressions for coupled-mode equations for nonlinear pulse propagation in fiber gratings using discretized coupled-mode theory and quantitatively analyze the nonlinear properties of long-period fiber gratings, considering multimode coupling between the core mode and several cladding modes. The calculations yield nonlinear responses for the case of long-period fiber gratings, including pulse shaping and all-optical switching in the self- and cross-phase modulation regimes. In addition, we briefly discuss the group delay properties of long-period fiber gratings and present several numerical examples of nonlinear pulse compression, which is related to strong dispersion and soliton-like behavior in fiber gratings
Keywords :
coupled mode analysis; diffraction gratings; optical fibre cladding; optical fibre theory; optical modulation; optical pulse compression; optical pulse shaping; optical solitons; phase modulation; all-optical switching; cladding modes; core mode; coupled-mode equations; cross-phase modulation regimes; discretized coupled-mode theory; generalized mathematical expressions; group delay properties; long-period fiber gratings; multimode coupling; nonlinear property analysis; nonlinear pulse compression; nonlinear pulse propagation; nonlinear responses; pulse shaping; self-phase modulation regimes; soliton-like behavior; strong dispersion; Bragg gratings; Couplings; Fiber gratings; Maxwell equations; Nonlinear equations; Optical fiber communication; Optical fiber devices; Optical fiber sensors; Optical fiber theory; Pulse shaping methods;
Journal_Title :
Quantum Electronics, IEEE Journal of
