Optical connector

The invention provides an optical connector being able to implement high speed communication. An optical connector 1 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 alpha of output light is denoted by alpha', and an outer diameter of a core of an optical fiber is denoted by A, B=2*L*tan alpha'-A, and L>A/tan alpha'/2 are satisfied. 本发明提供种能够实现高速通信的光连接器。光连接器(1)具有：光纤(4)；透镜(35a)，与光纤(4)的光轴方向上的端面(4a)对置地配置，并且接收从端面(4a)射出的出射光；以及滤光片(36)，被设置在端面(4a)与透镜(35a)之间，并且具有使出射光的部分通过的贯通孔(36a)。将滤光片(36)的贯通孔(36a)的内径设为(B)，将从端面(4a)到滤光片(36)的在光轴方向上的距离设为(L)，将小于出射光的最大出射角(α)且通过贯通孔(36a)的通过光的最大通过光出射角设为(α′)，将光纤(4)的纤