Shambat Gary, Rivoire Kelley, Lu Jesse, Hatami Fariba, Vucković Jelena
Department of Electrical Engineering, Stanford University, Stanford 94305, USA.
Opt Express. 2010 Jun 7;18(12):12176-84. doi: 10.1364/OE.18.012176.
We demonstrate up to 30 nm tuning of gallium phosphide photonic crystal cavities resonances at aproximately 1.5 microm using a tapered optical fiber. The tuning is achieved through a combination of near-field perturbations and mechanical deformation of the membrane, both induced by the fiber probe. By exploiting this effect, we show fiber-coupled second harmonic generation with a tuning range of nearly 10 nm at the second harmonic wavelength of approximately 750 nm. By scaling cavity parameters, the signal could easily be shifted into other parts of the visible spectrum.
我们展示了使用锥形光纤在约1.5微米波长处对磷化镓光子晶体腔共振进行高达30纳米的调谐。这种调谐是通过光纤探针引起的近场微扰和膜的机械变形共同实现的。利用这种效应，我们展示了在约750纳米的二次谐波波长处具有近10纳米调谐范围的光纤耦合二次谐波产生。通过缩放腔参数，信号可以轻松地转移到可见光谱的其他部分。
