The 2 oscillator circuits under are well suited for employing crystal oscillators in collection or parallel method: Higher-repetition-amount and high-electricity picosecond regenerative amplifier based on an individual 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 high energy passively method-locked picosecond oscillator determi... https://bookmarkfame.com/story18814637/5-simple-techniques-for-bulk-crystal-oscillator