The 2 oscillator circuits underneath are suited to working with crystal oscillators in collection or parallel method: Significant-repetition-fee and large-energy picosecond regenerative amplifier based 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 The kind of amplifier you may need will rely on the frequency. Op-amps m... https://www.hxcrystals.com/seokeywords/bulk-crystal-oscillator.html