The driving system of the speaker is constructed by a circular PZT bimorph, which is clamped on its boundary, An elastical coupling element is utilized between the bimorph and the speaker cone.
The coupling between butt fiber and cone lensed fiber is described in this paper. A theoretical model is presented and the formula of coupling efficiency is given.
建立了平端光纤与锥端微透镜光纤对耦合的理论模型，得到耦合系数的计算公式。
3
A coupling technique between a cone endface fiber and LD with the advantage of high efficiency and low reflectance is presented.