Optical connector

A plug receptacle connector comprising:

• a ferrule including a through hole extending in a first direction, the ferrule being configured to hold an optical fiber in the through hole;
• a ferrule holder disposed on an outer periphery of the ferrule and fixed to the ferrule;
• a housing that accommodates the ferrule and the ferrule holder therein;
• an anti-rotation structure provided outside the ferrule and inside the housing to prevent rotation of the ferrule about an axis in the first direction with the ferrule holder;
• a split sleeve disposed adjacent to the ferrule holder in the first direction to surround an outer periphery of an end portion of the, ferrule;
• and
• a sleeve holder holding the split sleeve,
• wherein the ferrule holder includes a tubular holder main body that accommodates the ferrule therein, and a flange part that protrudes outward from an outer periphery of the holder main body in a second direction intersecting the first direction,
• wherein the flange part includes a configuration that fits with the anti-rotation structure, and a center of the flange part in the first direction is located in a central region of the ferrule in the first direction,
• wherein both ends of the optical fiber that is held within the through hole of the ferrule are exposed from a first end and a second end opposite thereto of the ferrule, respectively, and
• wherein the split sleeve is located within the housing such that half of a length of the split sleeve, but not an entire length of the split sleeve, in the first direction covers the end portion of the ferrule.