What are the types of fiber collimator


Release time:

2023-08-16

Source:

One is a collimator that can be directly contacted with a bare optical fiber. This is the cheapest and easiest way, but the collimator is usually permanently attached to the fiber. Another type of fiber collimator has a mechanical cross-section between the optical connector, for example, FC or SMA type; typically not used for bare fibers. Such a collimator can be easily installed or removed from a spliced fiber. The same device can also be used to launch a collimated beam into an optical fiber, or for fiber-to-fiber coupling: first a first collimator is used to collimate the light exiting the first fiber, and then another collimator is used to focus the collimated beam into the second fiber. In general, fiber optic connectors can be seen as a natural cross-section between fiber optics and free-space optics. Another application is to combine a back-facing mirror with additional optical elements. For example, a Faraday rotator may be inserted therein to obtain a fiber-optic Faraday mirror, or a 1/4 wave plate may be inserted to obtain a half-wave plate mirror. In some other cases, a fiber filter or a saturable absorber may be used.

One is a collimator that can be directly contacted with a bare optical fiber. This is the cheapest and easiest way, but the collimator is usually permanently attached to the fiber.

 

Another type of fiber collimator has a mechanical cross-section between the optical connector, for example, FC or SMA type; typically not used for bare fibers. Such a collimator can be easily installed or removed from a spliced fiber.

 

The same device can also be used to launch a collimated beam into an optical fiber, or for fiber-to-fiber coupling: first a first collimator is used to collimate the light exiting the first fiber, and then another collimator is used to focus the collimated beam into the second fiber. In general, fiber optic connectors can be seen as a natural cross-section between fiber optics and free-space optics.

 

Another application is to combine a back-facing mirror with additional optical elements. For example, a Faraday rotator may be inserted therein to obtain a fiber-optic Faraday mirror, or a 1/4 wave plate may be inserted to obtain a half-wave plate mirror. In some other cases, a fiber filter or a saturable absorber may be used.

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