cavity diode
1.By mixing an external cavity diode laser,tunable in 1.5～1.6 μm,and a Q switched Nd:YAG laser at 1.064 μm in periodically poled lithium niobate,a continuously tunable difference frequency generation in 3.35～3.66 μm wavelength region is realized. The difference frequency generator (DFG) has a narrow line width of less then 1 MHz and an average output power of 0.2 mW.
4.Using diode-pumped Q-Nd∶ YL F frequency-doubled laser and BBO crystal,the experimen- tal of external cavity SHG is done.
6.This paper introduces a kind of 3mm pulsed IMPATT oscillator. By means of tunable amplitude slope pulse current injecting into IMPATT diode and stabilization frequency with a resonated cavity of high quality factor,the oscillator exhibits that it can supply strong power with high oscillation frequency and good frequency stability.
8.Through the optical system specially designed by computer CAD system which can satisfy the requirement of focus, the maximum output power 120mW of 946nm infrared laser is obtained when pumped by a 2W 808.5nm diode (made in China). At the same time, 10mW 473nm CW blue laser is obtained by intra cavity doubling of BBO crystal. The slope efficiencies for 946nm infrared laser and 473nm blue laser are 10% and 2%, respectively.
