Multiple-beam Interference（F-P Interferometer）
Purpose of the experiment and related subjects:
Adjust the position between the two mirrors to make they are parallel with each other and form a FP interferometer.
Observe the multi-beam interference of laser in the FP interferometer and understand the working principle and theory of FP interferometer.
Change the cavity length, measure and calculate the characteristic parameters of the interferometer. Fine-tuning the space between two mirrors using piezoelectric ceramics to observe its scanning feature to the transmitted wavelength and understand the working principle of scanning interferometer, observe the frequency characteristics of lasers and calculate the characteristic parameters of the interferometer.
Features of the instruments:
Adjustable interferometer cavity length facilitate the research of the impact of the cavity length to parameters.
The output power of the He-Ne laser is ≥ 0.7mW and the operating current is 5Ma.
Complete set of equipment:
Optical experiment guide, He-Ne laser, four-dimensional adjustment support, scanning interferometer and accessories, photoelectric probe, host, oscilloscope (self-contained) and etc…