OPTICAL POWER MONITORING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an optical power monitoring apparatus capable of suppressing a problem of crosstalk and easily manufactured. SOLUTION: Light guided through an optical fiber 111nand outputted from an optical emission end face 115 transmits through a light transmission member 17 filled in a groove 141, and is made incident onto a light receiving section 131n. Part of the light made incident onto the light receiving section 131nis absorbed by the light receiver 131nand an electric signal with a value equivalent to the power of the absorbed light is outputted from the light receiver 131n. The light transmitted through the light receiver 131nwithout being absorbed therein is made incident onto the optical incident end face 125 of an optical fiber 121n, and given to the inside of the optical fiber 121nfrom the optical incident end face 125 and guided through the optical fiber 121n. COPYRIGHT: (C)2005,JPO&NCIPI