The two oscillator circuits underneath are suitable for working with crystal oscillators in series or parallel manner: Higher-repetition-amount and high-electricity picosecond regenerative amplifier dependant on just 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 superior power passively mode-locked picosecond oscillator depe... https://worldlistpro.com/story20735698/a-secret-weapon-for-bulk-crystal-oscillator