Optical connector ferrule, optical connector, and optical coupling structure

An optical coupling structure comprising

• first and second optical connectors connected to each other,
• wherein each of the first and second optical connectors includes an optical fiber, and an optical connector ferrule that has a ferrule end face and holds the optical fiber,
• the ferrule end face of the first optical connector and the ferrule end face of the second optical connector face each other,
• a tip face of the optical fiber is exposed to the ferrule end face in each of the first and second optical connectors,
• a normal direction of the tip face of the optical fiber and a normal direction of the ferrule end face are both inclined with respect to a direction of an optical axis of the optical fiber in a section along the optical axis of the optical fiber, and
• an inclined angle of the normal direction of the ferrule end face with respect to the direction of the optical axis and an inclined angle of the normal direction of the tip face of the optical fiber with respect to the direction of the optical axis are both between 10° and 20°, and
• the optical coupling structure further comprising
• a spacer configured to regulate an interval between the ferrule end face of the first optical connector and the ferrule end face of the second optical connector, and
• guide pins configured to fix a relative position between the first optical connector and the second optical connector.