Ferrule for optical connector and optical connector

A ferrule for an optical connector comprising:

• a ferrule main body that comprises:
• fiber holes:
• that extend in a front-rear direction,
• that are disposed in a left-right direction, and
• into which optical fibers are inserted;
• a guide hole into which a guide pin is inserted;
• and
• a recessed portion recessed from a rear end surface of the ferrule main body toward a front side on which a connection end surface of the ferrule main body is disposed in the front-rear direction, wherein
• a vertical direction is perpendicular to both the front-rear direction and the left-right direction, rear end portions of the fiber holes open at a bottom surface of the recessed portion,
• the bottom surface comprises a first inclined surface inclined toward the fiber holes in a direction toward the front side,
• D/Tf>0.4 where Tf is a thickness of the ferrule main body in the vertical direction and D is a diameter of the guide hole,
• an upper surface and a lower surface of the ferrule main body are all covered with a wall surface, and
• the first inclined surface extends flat in the left-right direction such that the first inclined surface overlaps a region in which the fiber holes are disposed in the left-right direction.