Patent attributes
An optical connector module can contribute to a reduction in size while reducing coupling loss. An optical connector module (1) according to the present disclosure includes an optical transmission line (10) including cores (12) and a cladding (11), an optical connector (20) including a first side surface (A1) facing an end face of the cores (12) and configured to optically couple to the optical transmission line (10), and a refractive index matching material (30) configured to adjust the refractive index of a space between the cores (12) and the first side surface (A1). The refractive index matching material (30) is disposed between the first side surface (A1) and the end face. A curved first lens portion (23) is provided on the first side surface (A1) at a position opposite the cores (12).
