fabry-perot etalon

By utilizing the multiple reflections of parallel mirrors, a bandpass filter with the same bandwidth as laser can be obtained.

Used for astronomical observation or interferometry.

Four types of F-P standard tools can be manufactured according to their intended use.

When there is only one reflective surface, it is total reflection. When the second reflective surface is completely parallel, the density of light rays between the reflective surfaces will increase, and the amount of light leaked from the second surface will continue to rise until it reaches the level of light entering the first surface. On the other hand, the light leaked from the first surface cancels out the reflected light from the first surface, resulting in a decrease in the amount of reflected light from the first surface. Therefore, high transmittance at specific wavelengths can be obtained.

Attention

▶ If the incident angle is not the correct 0 °, the transmitted wavelength may deviate, and even the light may not pass through.

▶ When there are special requirements for the sharpness or transmittance characteristics of the interferometer, please contact us in advance.

▶ Depending on the situation, manufacturing interferometers sometimes requires a lot of time. Please confirm with the sales department.

General Metrics

Technical data