Ferrule, optical connector, and optical connector module

A ferrule, comprising:

• a ferrule body including an optical transmission member holding part, the optical transmission member holding part being configured to hold a plurality of optical transmission members;
• and
• an optical transmissive member including an optical surface disposed opposite to front end surfaces of the plurality of optical transmission members held by the optical transmission member holding part, the optical transmissive member being configured to transmit light emitted from the plurality of optical transmission members or light that enters the plurality of optical transmission members,
• wherein the ferrule body includes a first fitting part and a first coupling hole, the first coupling hole being configured to receive a coupling member,
• wherein the optical transmissive member includes a second fitting part configured to be fitted with the first fitting part, and a second coupling hole through which the coupling member received by the first coupling hole is provided,
• wherein the first fitting part and the first coupling hole are coaxial,
• wherein the second fitting part and the second coupling hole are coaxial, and
• wherein the first fitting part is a recess and the second fitting part is a protrusion, or the first fitting part is a protrusion and the second fitting part is a recess.