PROTRUDING/RETRACTING PIN OPTICAL TAP ON OPTICAL SUB- ASSEMBLY

摘要

PROBLEM TO BE SOLVED: To provide a protruding/retracting pin optical tap on an optical sub-assembly for transmitting a laser beam signal generated from one laser beam source to a plurality of optical elements disposed at different distances from the source. SOLUTION: An apparatus and a method for supplying individual laser beam signals supplied from one laser beam source to the plurality of optical elements use a base for a first optical element. Thus, a part of the signals supplied from the one source is received by the first element. The residue of the signals is propagated over the first element, and received by the second optical element. The obtained individual signals are constituted without using a beam splitter.