Communication light visualization structure

A communication light visualization structure comprising:

• a duplex LC communication light visualization adapter including
• an opening portion connected to a first light extraction space to which a part of first communication light transmitted through a first optical communication path is extracted as first leakage light and a second light extraction space to which a part of second communication light transmitted through a second optical communication path is extracted as second leakage light, and
• a guide groove formed in the opening portion;
• and
• a duplex LC communication light detector including
• a base portion that is removably accommodated in the opening portion and that has the same cross-sectional shape as the opening portion,
• a first light receiver that is disposed on the base portion, that faces the first light extraction space, and that receives the first leakage light,
• a second light receiver that is disposed on the base portion, that faces the second light extraction space, and that receives the second leakage light,
• a light blocking wall that extends from the base portion through a space between the first light receiver and the second light receiver and that is guided by the guide groove and optically shields the first light extraction space and the second light extraction space from each other when the base portion is accommodated in the opening portion, and
• a display portion that individually displays a communication status of the first optical communication path and a communication status of the second optical communication path,
• wherein the guide groove is formed at a position such that cross sections of the opening portion and the base portion fit together in only one direction, and
• wherein the light blocking wall enters the guide groove and slides along to the guide groove when the opening portion and the base portion are fitted together.