Quasi‐phase‐matched second harmonic generation in a polymer waveguide with a periodic poled structure
Quasi‐phase‐matched second harmonic generation in a polymer waveguide with a periodic poled structure
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具有周期性极化结构的聚合物波导中准相位匹配二次谐波的产生
DOI：
10.1063/1.116658
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发表时间：
1996
影响因子：
4
通讯作者：
M. Asobe
中科院分区：
文献类型：
--
作者：
S. Tomaru;Toshio Watanabe;M. Hikita;M. Amano;Y. Shuto;Itaru Yokohoma;T. Kaino;M. Asobe
在极化聚合物波导中实现了准相位匹配（QPM）二次谐波产生。采用传统光刻和反应离子刻蚀技术制作了周期性结构的波导。采用极化聚合物和紫外光固化环氧树脂制作了QPM结构的光波导。使用基波波长为1.48-1.65 μm的激光，观察到相位匹配的二次谐波产生。这种相位匹配条件依赖于周期长度。该波导在1.55 μm波长附近的典型二次谐波产生效率约为4×10−1% W−1 cm−2。
Quasi‐phase‐matched (QPM) second harmonic generation in a poled polymer waveguide has been realized. A waveguide with a periodic structure was fabricated by conventional photolithography and reactive ion etching. The waveguide with a QPM structure was composed of poled polymer and UV cured epoxy resin. Phase‐matched second harmonic generation was observed, using laser light with a fundamental wavelength 1.48–1.65 μm. This phase matched condition was dependent on the periodic length. The waveguide had a typical second harmonic generation efficiency of about 4×10−1% W−1 cm−2 around a wavelength of 1.55 μm.