1550 nm, f = 18.75 mm, NA = 0.15 FC/PC Fiber Collimation Pkg.

Features Fiber Collimation Popular FC/PC Connectors Each Collimation Package is Factory Aligned Simplifies Free-Space Laser to Fiber Coupling Simplifies Fiber Coupled Detection Systems Non-Magnetic Stainless Steel Housing The fiber collimation package is pre-aligned to collimate a laser beam propagating from the tip of an FC/PC (2.1 mm wide key compatible) connectorized fiber with diffraction-limited performance. Because the fiber collimator has no movable parts, it is compact and not susceptible to misalignment. Due to chromatic aberration, the effective focal length (EFL) of the aspheric lens is wavelength-dependent. As a result, the collimator will only perform optimally at the design wavelength. The aspheric lens is factory-aligned so that it is one focal length away from the fiber tip when inserted into the collimator. This distance is equal to the focal length of the aspheric lens at the design wavelength. In addition, the aspheric lens has an AR coating that minimizes surface reflections.