Modulated spatial transmission signals in the photonic bandgap |
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| Institution: | 1.School of Science, Xi'an University of Posts and Telecommunications, Xi'an 710121, China;2.School of Communication and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an 710121, China;3.Key Laboratory for Physical Electronics and Devices of the Ministry of Education&Shaanxi Key Laboratory of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China |
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| Abstract: | This paper describes the spatial transmission of electromagnetically induced transparency and four-wave mixing signals in the photonic bandgap structure, which are modulated using the adjustable parameters of light fields. The spatial transmission patterns of the relevant signals are experimentally investigated with respect to the optical nonlinear Kerr effect that occurs in the modulation process. The experimental results reveal the spatial transmission patterns of the probe transmission and the four-wave mixing signals, such as focusing, defocusing, shifting, and spatial splitting. This study explains how the tunable parameters of light fields and their interactions with each other can regulate the spatial transmission of the light fields by changing the refractive indices of media, which provides a new research perspective and a degree of experimental technology support for more efficient all-optical communications. |
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| Keywords: | electromagnetically induced transparency nonlinear Kerr effect four-wave mixing photonic bandgap |
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