Optical connector

An optical connector includes an optical filter 36 that is disposed between an end surface and a lens, and includes a through-hole that transmits part of the output light, when an inner diameter of the through-hole of the optical filter is denoted by B, a distance from the end surface to the optical filter in the optical axis direction is denoted by L, a maximum transmitted light output angle of transmitted light that passes through the through-hole and has a smaller angle than a maximum output angle α of output light is denoted by α′, and an outer diameter of a core of an optical fiber is denoted by A, B=2×L×tan α′−A, and L>A/tan α′/2 are satisfied.