Optical fiber member and optical fiber holder

An optical fiber member comprising

• two holding members that hold an optical fiber such that an end surface of the optical fiber is located on one end and a predetermined part having a coat of the optical fiber is curved to be extended at another end, wherein
• the two holding members include holding flat portions that sandwich an end portion of the optical fiber where the coat is removed such that the end surface of the optical fiber is located on the one end of the optical fiber member,
• at least any of the holding flat portions included in the two holding members has an aligning groove to fix a position of the end portion of the optical fiber, and
• a first holding member among the two holding members positioned in an extending direction of the optical fiber has a curved surface at a position adjacent to the predetermined part in the extending direction, the curved surface being curved with a predetermined curvature radius along the extending direction of the optical fiber.