| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Design of an Ultrafast Frequency Doubling Photonic Device |
| Jin-Jer Huang, Lin Su, Shao-Zhi Pu, Shang-Ao Sun, Liu-Yang Zhang** |
Department of Optoelectronic Information Science and Engineering, Harbin University of Science and Technology, Harbin 150080
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| Cite this article: |
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Jin-Jer Huang, Lin Su, Shao-Zhi Pu et al 2016 Chin. Phys. Lett. 33 104204 |
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Abstract Ultrashort pulses complicate the frequency conversion in a nonlinear crystal, where group velocity mismatch becomes the main obstacle due to dispersion. We present a design for group velocity compensated second harmonic generation in a modulated nonlinear structure, embedded in a liquid crystal box. In this structure, nonlinear crystals act as sources of signal and liquid crystals compensate for group velocity mismatch originating from nonlinear crystals. There are the advantages of the flexible, controllable birefringence of liquid crystals. Meanwhile, a method calculating the parameters of this type of structure is presented. To make it clear, an example is provided. Furthermore, the structure can also be shaped as a waveguide to support integration into other optical devices, applicable to all-optical processing systems.
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Received: 03 March 2016
Published: 27 October 2016
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| PACS: |
42.79.Nv
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(Optical frequency converters)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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42.65.Ky
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(Frequency conversion; harmonic generation, including higher-order harmonic generation)
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| Fund: Supported by the Natural Science Foundation of Heilongjiang Province under Grant Nos F201312, F2016023 and QC2015086, and the National Natural Science Foundation of China under Grant No 61405049. |
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