If it is your first hear about fiber collimator, you may be very confused with it. What is fiber collimator? What types does it have? What is it used for? And where I can buy it? Today in this blog, I would like to have a detailed introduction about fiber collimator.

Fiber collimator is a passive device. It is a module that combines a fiber and a lens, as well as has a function to produce parallel beams. It is usually made of a curved mirror or lens with the light source placed at its focus, which is used to make divergent light into a parallel beam or coupler the parallel beam into the fiber. Fiber collimator is usually available with different wavelengths (850 nm, 980 nm, 1060 nm, 1310 nm, 1550 nm), which could be adjustable in practice. Here are some fiber collimator samples shown in the following picture.

By different light source placed at its focus, fiber collimator could be generally classified as four types. They are pin hole collimator, parallel hole collimator, convergent collimator and divergent collimator. Every type has its characteristic shown as follows:

• Pin hole collimatorwhich – which consists of thick conical collimator having a hole in the bottom;
• parallel hole collimator – which consists of an array of parallel holes that are perpendicular to the crystal surface;
• Convergent collimator – which consists of an array of tapered holes that focus at a point;
• Divergent collimator – which is an inverted converging collimator.

Fiber collimator is widely used as a device for testing, calibration and measurement. In one pattern of fiber collimator, called target, is said to be projected to infinity. Placing a target in the focal plane of a collimator makes a uniform target appear to be in the far field. This phenomenon enables the use of collimators in training devices such as flight simulator.

When a surface is illuminated by a small light source, such as the target in a collimator, the illumination of points on the target surface off the light axis will be lower than illumination of the area of the surface on the axis. This phenomenon can be mitigated by interposing a fiber-optic faceplate between the light source and the target.

The use of fiber collimator for calibrating other optical devices allows users to check if all elements are aligned on the optical axis. It can make the setting of elements at proper focus and allow users to align multiple devices such as binocular, which ensures gunsights to be aligned with its respective gun barrels.

Fiberstore is a professional manufacture and supplier of optical networking solutions. It can offer fiber collimator for you with high quality and competitive price. It offers a range of fixed and adjustable fiber optic collimation packages for collimating a laser beam from the end of an FC/APC, FC/PC, or SMA connectorized fiber while maintaining diffraction-limited performance at the design wavelength. With its features of low insertion loss, low back reflection and high extinction ratio, as well as high environmental stability and high compact design, it is a ideal solution for your business or project. For more detailed information, please visit our website or contact us over sales@fiberstore.com.