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Fiber Couplers

Photonics.com
Oct 2015
Laser Components USA Inc.Request Info
 
BEDFORD, N.H., Oct. 19, 2015 — Fiber CouplersCouplers from Laser Components USA Inc. facilitate input, transmission and output from optical fiber assemblies.

Input couplers feature an inner optic that can be adjusted along three axes to allow laser beams with diameters of 10 mm to be focused on optical fibers with a core diameter between 100 and 2000 μm. The maximum power of the laser beam to be coupled is up to 150 W.

The optics are coated for optimal power transmission. Three wavelength ranges between 400 and 1300 nm are available.

The product range comprises dual-clad fibers (quartz core/quartz cladding/hard clad/buffer) with fiber core diameters from 400 to 1000 μm. Different protective tubes are available, including flexible metal jackets or PVC and PTFE tubes. End faces feature antireflection coatings.

The optical connection of the fiber is carried out using an SMA connector. Connectors with free-standing fibers are available, either with ARCAP or copper ferrules. At <10 μm, the eccentricity of the fiber core to the ferrule's outer diameter is very low.

The output coupler features a collimator that is also connected via an SMA connector. The optics used are adjustable along the Z-axis and are available in three types of coatings from 350 to 1600 nm. The output coupling collimators are available in various focal lengths to achieve different beam diameters.

The efficiency of the collimator is more than 85 percent when multimode fibers are used.


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