Block base having tree-structured groove array, multi-core optical fiber block having tree-structured groove arrays, and method for aligning optical fiber arrays in the same

摘要

Disclosed is a multi-core optical fiber block having a block base and a cover, each of which is formed having a tree-structured groove array, so as to allow respective optical fiber arrays to be seated in the corresponding respective groove arrays. The groove arrays comprises first sub-grooves having depth and pitches decreasing in magnitude as approaching from an input end of the block to an output end, and second sub-grooves formed alternately between the first sub-grooves and having the depths and pitches increasing in magnitude as approaching from the input end of the block to the output.