Optical communication fiber, optical communication module, and optical communication system

An optical communication module provided with an optical device and an optical communication fiber having a first end section, the first end section being optically coupled to the optical device, the optical communication fiber comprising:

• a fiber body having a tip surface;
• and
• a light absorption layer configured to reduce light transmittance of communication light,
• wherein the first end section of the optical communication fiber has a configuration in which the light absorption layer is provided to the tip surface of the fiber body.

An optical communication system provided with a first optical communication module, a second optical communication module, and an optical communication fiber including a first end section and a second end section, the first end section being optically coupled to the first optical communication module, and the second end section being optically coupled to the second optical communication module, the optical communication fiber comprising:

• a fiber body having a tip surface;
• and
• a light absorption layer configured to reduce light transmittance of communication light,
• wherein the first end section of the optical communication fiber has a configuration in which the light absorption layer is provided to the end surface of the fiber body.