Optical receptacle and optical module provided with same

摘要

An optical fiber attaching section, a photoelectric conversion device attaching section, and a lens are integrally formed by a light-transmitting resin material. The optical fiber attaching section is formed concentrically with an optical axis OA of the lens. A contact surface for the photoelectric conversion device in the photoelectric conversion device attaching section is formed having a tilt in relation to a plane that is perpendicular to the optical axis OA. As the photoelectric conversion device, a photoelectric conversion device is attached in which a contact surface for the photoelectric conversion device attaching section is formed in parallel with a light-receiving surface of a light-receiving element.

主权项

1. An optical receptacle comprising:
a cylindrical optical fiber-attaching section for attaching an end portion of an optical fiber; a cylindrical photoelectric conversion device-attaching section for attaching, in a state of contact, a photoelectric conversion device having a light-receiving element; and a lens for optically coupling the end portion of the optical fiber and the light-receiving element, wherein the optical fiber-attaching section, the photoelectric conversion device-attaching section, and the lens are integrally formed by a light-transmitting resin material, the optical fiber-attaching section and the photoelectric conversion device-attaching section are formed concentrically with an optical axis of the lens, a contact surface for the photoelectric conversion device in the photoelectric conversion device-attaching section is tilted at a tilt angle of 30 degrees or less in relation to a plane that is perpendicular to the optical axis of the lens, and the photoelectric conversion device is attached to the photoelectric conversion device-attaching section in which a contact surface for the photoelectric conversion device-attaching section is formed in parallel with a light-receiving surface of the light-receiving element, and the contact surface for the photoelectric conversion device in the photoelectric conversion device-attaching section is in contact with the contact surface for the photoelectric conversion device-attaching section in the photoelectric conversion device and is positioned entirely co-axially with the optical axis of the lens so that coupling efficiency of light transmitted to the light-receiving surface of the light-receiving element can be −0.52 dB as measured when the tilt angle of the contact surface for the photoelectric conversion device is 30 degrees or less.