open access

https://hdl.handle.net/2115/67118

A rigorous definition of nonlinear parameter γ and effective area A_eff for photonic crystal optical waveguides

英語

2015-06-01

Optical Society of America

Journal of the Optical Society of America B

32(6)

1245-1251

A rigorous definition of nonlinear parameter 𝛾γ for high-index-contrast (HIC) periodic optical waveguides, such as photonic crystal (PC) optical waveguides, is proposed. The definition is fully vectorial, and approximations assumed in previous works are unnecessary. The 𝛾γ values calculated by the proposed definition are compared with those obtained by previous definitions, the rigorous nonlinear mode solver, and measured values for weakly guiding optical fibers, HIC Si-nanowire waveguides, and PC waveguides. It is demonstrated that the 𝛾γ values calculated by proposed definition agree well with those of the rigorous nonlinear mode solver and experiments for all three waveguides, showing the validity of the definition.

学術雑誌論文

Accepted Manuscript

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