科研之友
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摘要
We report that trefoil and quatrefoil silica channels with sizes ranging from 0.6 mu m to as large as 4-5 mu m in a holey fiber can strongly confine the light field and act as highly nonlinear waveguides. Supercontinuum emissions, efficient dispersive-wave generation and parametric four-wave-mixing processes were achieved in these channels with sub-nanojoule femtosecond Ti:sapphire laser pulses. Two dispersion curves corresponding to two orthogonal modes in each channel were simulated and used to explain the experimental results.
- 出版日期2008-5
- 单位武汉邮电科学研究院; 华中科技大学
