| 摘要 |
An optical mixing element characterized by two groups of light conducting fibers being connected to one another by a mixer stage. The mixing element of this type exhibits small insertion losses and is to ensure a uniform as possible distribution of power between the outgoing fibers. In order to reduce light losses, the fibers in at least one group such as the outgoing group are fused together without any gaps therebetween to form a fused zone which preferably exhibit a gradual taper. In one embodiment, a mixer stage comprises a glass rod and the fused zones of each of the fiber groups abut against the end surfaces of the rod and taper towards the rod. In another embodiment, the mixer stage forms a part of the constriction which is provided in the fused zone of a group of the light conducting fibers.
|
