What is the function of fiber collimator？

The optical collimator is an important part of the optical fiber communication system. The optical collimator, which is precisely positioned by the pigtail and the self-focusing lens, is an important component in the optical passive device. It consists of a single-mode pigtail and a collimator. lens composition. In practical use, what is the role of the light collimator?

It is understood that the optical collimator is an important component in the optical passive coupling device, and has a very common application in optical communication systems. Therefore, the function of the optical collimator is to turn the outgoing beam into a parallel beam, or to parallel The beam converges into the fiber, which has the characteristics of low insertion loss, high return loss, long working distance, wide bandwidth, high stability, high reliability, small beam divergence angle, small size and light weight. In addition, the optical collimator can convert the divergent beam emitted from the end face of the fiber into a parallel beam, or condense the parallel beam and couple it into the fiber with high efficiency. Beam coupling, optical isolator, optical attenuator, optical switch, circulator, MM, dense wavelength division multiplexer ES.

In recent years, with the development of the optical communication industry, the application fields of collimators have been continuously expanded, and the requirements for collimators have also been continuously improved. In some occasions, such as the occasions that require the miniaturization of the device, the ordinary fiber collimator cannot meet the requirements because the aperture angle of the exit beam is too large.