光纤锥和香肠腔耦合角度对共振波长的影响

Influence of Coupling Angle Between Fiber Taper and Sausage-like Microresonator on Resonance Wavelength

研究光纤锥和香肠腔不同的耦合角度对共振波长的影响.利用光纤锥耦合的方法激发香肠状微腔中的光学回音壁模式,从而获得香肠腔的共振波长.实验结果表明:通过改变光纤锥和香肠腔的耦合角度,香肠腔的共振波长会发生一些改变,夹角越小共振波长越大,当角度接近垂直的时候共振波长达到最小值.

This paper mainly focus on the influence of different coupling angles between fiber taper and sausage-like microresonator on the resonance wavelength. We use a fiber taper to excite the whispering gallery mode of a sausage-like microresonator to obtain the resonant wavelength. The result shows that the resonance wavelength of the sausage-like microresonator will change when we change the coupling angle between the fiber taper and the sausage-like microresonator. The smaller of the angle,the longer of the resonance wavelength,and when the angle is close to vertical,the wavelength reaches its minimum.