We demonstrate a diode-pump Tm3+-doped all-fiber laser operating at 1908 nm based on a master oscillator power amplifier (MOPA) configuration. In our work, 152 W of laser output power is generated by a total incident pump power of 434 W at 790 nm, corresponding to the total optical efficiency of 35%

Phase noise and frequency stability in oscillators 毕业设计必读

晶振的等效电路；晶振振荡器的设计；晶振振荡器的起振问题及频率稳定的措施。