以前算过-,这是能量守恒，为了算出,简谐振荡的周期，我们求时间导数。
We've done this before-- this is the conservation of energy, and in order to find the period of the simple harmonic oscillation, we take the time derivative.
金属包层长周期光纤光栅可用于对谐振波长的调谐。
Metal coated long period fiber gratings (LPFG) can be used to change the resonance wavelength.
这种较高次包层模谐振将导致极宽带的长周期光栅，论文中还预计了这种长周期光栅未来的应用。
Such higher order cladding mode resonances will result in ultra-broadband LPG. The possible application of such an LPG is predicted.
应用推荐