The 2 oscillator circuits beneath are suited to utilizing crystal oscillators in collection or parallel mode: Significant-repetition-price and substantial-ability picosecond regenerative amplifier depending on 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://exactlybookmarks.com/story18908647/5-essential-elements-for-bulk-crystal-oscillator