| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to adjust an optical axis of an optical component that can be subjected to alignment with high accuracy by a simple and inexpensive constitution in spite of being a condensing optical system.SOLUTION: An optical axis adjustment device includes: an optical power meter that mesures light intensity; an optical circulator that is provided at an input port side, causes test light to enter an optical path, and guides light returning through the optical path to the optical power meter; and a mirror that is provided opposed to an output port so as to be movable back and forth, is tiltable with respect to an optical axis of the optical path, and reflects the test light emitted from the output port. |
