The 2 oscillator circuits beneath are suited to utilizing crystal oscillators in collection or parallel mode: Superior-repetition-price and substantial-power picosecond regenerative amplifier depending on only one bulk Nd:GdVO4 crystal 中原子或分子的排列具有三维空间的周期性，隔一定的距离重复出现，这种周期性规律是 A higher electrical power passively method-locked picosecond oscillator ... https://getsocialnetwork.com/story4437117/an-unbiased-view-of-bulk-crystal-oscillator