| 摘要 |
PROBLEM TO BE SOLVED: To make a module used for an optical communication system possible to be complexed. SOLUTION: The functions of an optical switch, an optical attenuator and an optical power monitor are united in a case 10 constituting the module. A collimator and an optical fiber are dispensed with at a connecting portion by connecting these components with an optical axis comparing with the case of constituting for every module. Accordingly, the wiring the optical fiber is unnecessary, and miniaturization and improvement in efficiency can be realized. |
