The 2 oscillator circuits beneath are well suited for working with crystal oscillators in series or parallel method: High-repetition-fee and superior-electrical power picosecond regenerative amplifier based upon a single 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 large electricity passively manner-locked picosecond oscillator... https://bookmarkingalpha.com/story18956580/top-guidelines-of-bulk-crystal-oscillator