论文标题
在电信波长处的定向图案差距波导中连续波浪的连续波段产生
Continuous-Wave Second-Harmonic Generation in Orientation-Patterned GaP Waveguides at Telecom Wavelengths
论文作者
论文摘要
提出了一个新的在具有几乎完美平行域边界的GAA上产生定向图案的磷化物（OP-GAP）的新过程。利用磷化物和砷之间的化学选择性，将OP-GAP处理成悬浮的浅ridge波导。在I型和II型极化构型中都可以实现从电信波长中有效的第二谐波生成。最高观察到的转化效率是\ si {200} {\ persion \ per \ watt \ per \ centi \ meter \ squared}，带有\ si {2.67} {\ nano \ seter}的带宽中的带宽，在a \ si {1} {1} {1} {\ milli \ miteri \ meteri \ nano \米。转换效率与波长的变化紧随其平方正弦函数，与理论非常吻合，证实了在整个波导的整个长度上，孔的良好均匀性。
A new process to produce Orientation-Patterned Gallium Phosphide (OP-GaP) on GaAs with almost perfectly parallel domain boundaries is presented. Taking advantage of the chemical selectivity between phosphides and arsenides, OP-GaP is processed into suspended shallow-ridge waveguides. Efficient Second-Harmonic Generation from Telecom wavelengths is achieved in both Type-I and Type-II polarisation configurations. The highest observed conversion efficiency is \SI{200}{\percent\per\watt\per\centi\meter\squared}, with a bandwidth of \SI{2.67}{\nano\meter} in a \SI{1}{\milli\meter}-long waveguide. The variation of the conversion efficiency with wavelength closely follows a squared cardinal sine function, in excellent agreement with theory, confirming the good uniformity of the poling period over the entire length of the waveguide.
