Fibre tips change the radiation characteristics of the fibre. We offer fibre end caps for the input and output coupling of high laser power and spherical lenses, which are used in medical technology.
Laser Components manufactures fibre tips according to customer specifications. Select the appropriate fibre type from our product range and let us know your specification requirements to order your individualized product. Feel free to contact us by phone or e-mail.
If high power densities are expected at the end surfaces of the connectors, these can be reduced by splicing end caps to the fibre end. The end caps are cylindrical glass rods made of pure fused silica, which can also be integrated into standard connectors if required (e.g., in FC/PC connectors). The diametre of the end cap is larger than that of the fibre core. The light leaves the core according to its numerical aperture; its power density is reduced with the help of the end cap. This prevents the fibre from burning up or from sustaining performance-related end surface damage. There are different types of end caps that are used for both single-mode and multi-mode fibres. Insertion of the end cap at a defined length into the ferrule of a single-mode connector is one special technology.
Spherical lenses drawn from the fibre optimize their radiation characteristics. Depending on the application, they are used to focus or collimate light. Spherical lenses are shaped with an individual diametre. Fused silica fibres with diametres of 200 µm, 365 µm, 400 µm, 550 µm, or 600 µm are processed. This product is processed according to ISO 13485 and can be packaged sterilely.
Gradient index (GRIN) lenses are cylindrical glass bodies, the refractive index of which decreases continuously from the centre to the edge. They are used to collimate the light beam emerging from the fibre (i.e., to achieve parallel alignment). At LASER COMPONENTS, the lenses are directly connected to the optical fibre using an adhesive-free process. With this solution, we can guarantee our customers reproducibly high quality. In addition, this will eliminate the need for an external collimator with a larger housing in the future.
On a standard basis, we supply GRIN lens assemblies for the following telecom wavelengths: 1310 nm and 1550 nm. They consist of an SMF-28 single-mode fibre and collimators with a numerical aperture of 0.5 or 0.2. The fibre ends are integrated into an FC connector in such a way that they end directly with the ferrule.
Other connector types, bare fibre solutions, and wavelengths of 650 nm and 870 nm are also available upon customer request.
