FCA10911_NIS033U-SS

FCA10911_NIS033U-SS is an elastomer sealed double lens with N-BK7 glass material, specializing in fiber coupling with different core sizes. This lens, besides being used in telecom sector, finds application in laser machining as well. This article will explain its application and working principle.

Application: FCA10911_NIS033U-SS double lens can be used to couple fibers with different core sizes ranging from 8~1000 μm. Coupling the fibers requires precise focusing and hence a double lens with high precision is necessary. This lens provides this capability with its elastomer sealed doublet that ensures stable focus even with a wide temperature range and frequent cleaning.

Working Principle: The FCA10911_NIS033U-SS lens uses the principle of refraction of an incident beam by a doublet concave-convex combination. When the light from the fiber enters the lens, the refractive index of N-BK7 glass adjusts its path and focuses the light to give a high qualitative performance even for small core sizes. As the lens is elastomer sealed, it also provides sturdiness and cleaning shield which lets it withstand frequent cleaning and converse its optical performance over a wide temperature range.

This lens also features a variety of input modes starting from many different single-mode fibers to low divergence multi-mode fibers. Its focal length of 6mm enables it to provide a working distance up to 0.8mm which widens the possibilities of potential applications, so it can be used for different tasks.

FCA10911_NIS033U-SS lens is thus a perfectmatch for applications requiring coupling of fibers with small core sizes with high precision and wide temperature range. As the lens is elastomer sealed, its optical performance remains unaffected with frequent cleaning. All these features give it immense potential for use in laser machining.