What is a wave?
Waves are a device used in fiber optics to measure the wave length of the laser beams. Waves also called wavelength meter tests the optical elements of the products in production. Waves are used if extremely accurate measurements are required.
Waves are interferometers used only to measure wavelengths. Interferometers measure light waves by interference, usually provided by mirrors to divide the light beam into two and then recomb it. By studying the resulting shape, the beam can be measured.
There are two main types of waves: scanning and static. The first type is usually based on the Michelson scanning interferometer. These types of waves consist of three mirrors, light source and detector. Each piece of interferometer Michelson resembles a cross shape and is located on one corner of the cross. The light source is located opposite one of the mirrors and the other mirror and the detector is placed perpendicular to them. The third mirror, half sober, is located at an angle in the center. This is a mirror,that actually divides the beam.
When the light source is activated, the laser hit the half mirror and divided, one half of the beam passes straight through and the other half moves perpendicular to the first. Both halves hit the positioned mirrors behind and above the central mirror, they will bounce and will be recharged by a half -skill mirror. The recombricted beam then moves directly down to the detector to analyze the results.
The distance between the mirrors or arms can be changed for scanning the length range. The accuracy of these waves can be as large as 0.01 nm. However, several problems such as imperfections in the beam, length and fluctuation in the entrance force could bring less accurate results.
Most static waves are based on static fizeau interferomer. These waves do not have moving parts, but use the same principle of mirror reflection. Less common static waves are establishedWomen on Fabry-Pérot interferometers that are linear. However, these are more often used as optical spectrometers than waves,
High accuracy for any wave type depends on the stability of the display settings and resolution. The reference laser, whose wavelength is known, also works in the tandem with the tested laser to increase accuracy. In cases where extreme accuracy is essential, the machine calibration may be required as well as once per minute.
wavelengths can also be measured by spectrometers, but although spectrometers provide more information about the light beam components, accuracy is sacrificed. Some types of waves can also function as spectrometers, providing additional information without sacrificing accuracy.