Diode-pumped passively Q-swiched solid-state laser is widely used for remote sensing, distance measurement, laser radar, laser medicine, laser micromachining, optics data storage etc. fields with its advantages of narrow pulse width, high peak power, high repetition frequency, high conversion efficiency, compact size.
This is the typical experiment of research on pulsed laser. In the experiment, there is 1064nm pulsed laser output by putting Cr:YAG into the laser cavity with LD pumped Nd:YAG Measure the wave shape, frequency and pulse width with oscilloscope, then observe the change rules of parameters of wave shape, frequency, pulse width by changing the length of cavity and output mirror with different transmissivity. The students can grasp the adjustment method with Cr:YAG and the measurement of pulsed laser parameters, finally coming to conclusion of influence factors and change rules.
Main points:
a) DPSSL passively Q-switched technology
b) The effect of Q-switch crystal-Cr:YAG with different transmissivity on output pulsed laser
c) Parameters of Q-switched pulsed laser along with the change of cavity length
d) Parameters of Q-switched pulsed laser along with the change of output lens transmissivity
Frequency of laser
Pulse width of laser
Related Courses
Principles & technology of lasers, Non-linear Optics, Laser Optics, Laser devices, Photoelectronics, All Solid State Laser and Nonlinear Optical Frequency Conversion Technology
Basic Configuration
Name
Specifications
LD
Wavelength:808nm(Include current source)
Laser
Nd: YAG (Nd: YLF selectable)
Q-switched crystal
Cr:YAG (different transmissivity selectable)
Output lens
with high-reflectivity film of 1064nm (different transmissivity)
