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Rigorous intensity and phase-shift manipulation in optical frequency conversion.

ABSTRACT: A simple method is employed to investigate the nonlinear frequency conversion in optical superlattices (OSL) with pump depletion. Four rigorous phase-matching conditions for different purposes are obtained directly from the nonlinear coupled equations, and the resulting OSL domain structures are generally aperiodic rather than periodic. With this method, not only the intensity but also the phase-shift of the harmonic waves can be manipulated at will. The second-harmonic generation of Gaussian beam is further investigated. This work may provide a guidance for the practical applications of designing nonlinear optical devices with high conversion efficiency.

SUBMITTER: Yang B

PROVIDER: S-EPMC4895210 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature

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Rigorous intensity and phase-shift manipulation in optical frequency conversion.

Yang Bo B Yue Yang-Yang YY Lu Rong-Er RE Hong Xu-Hao XH Zhang Chao C Qin Yi-Qiang YQ Zhu Yong-Yuan YY

Scientific reports 20160607

A simple method is employed to investigate the nonlinear frequency conversion in optical superlattices (OSL) with pump depletion. Four rigorous phase-matching conditions for different purposes are obtained directly from the nonlinear coupled equations, and the resulting OSL domain structures are generally aperiodic rather than periodic. With this method, not only the intensity but also the phase-shift of the harmonic waves can be manipulated at will. The second-harmonic generation of Gaussian be ...[more]

PMID: 27272308

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