Laser and amplifier makers striving for optimal beam quality and maximum optical efficiency need to obsess over intracavity splice quality. A key set of attributes required to achieve this splice quality are intrinsic to the fiber itself.
The precision of core and cladding material match, roundness, core-clad offset, and diameters all contribute significantly to the eventual splice performance.
Nufern and several of its key component making partners have joined to provide this matched set of fibers for several standardized products.