Optical sockets and optical transceivers

Abstract

The invention provides an optical socket. Specifically, the optical receptacle has: a short optical fiber ferrule, including an optical fiber with a core wire and a cladding, a sleeve with a through hole, and an elastic member for fixing the optical fiber to the sleeve; and a holder, which holds the short optical fiber ferrule Keep, the optical fiber has: the first part, the core wire diameter is small and the refractive index difference between the core wire and the cladding layer is large; the third part, the core wire diameter is large and the refractive index difference between the core wire and the cladding layer is small; and the second Two parts, the diameter of the core wire changes from the diameter of the first part to the diameter of the third part, and the refractive index difference between the core wire and the cladding is between the refractive index difference below the first part and the refractive index difference above the third part Over time, the elastic member is filled in the space between the optical fiber and the inner wall of the through hole.

Description

[0001] This application is a divisional application of an invention patent application with an application date of December 24, 2015, an invention title of "Optical Socket and Optical Transceiver", and a national application number of "201580066559.7". technical field [0002] The aspect of the present invention generally relates to an optical transceiver and a module for optical communication, and particularly relates to an optical receptacle suitable for a module for high-speed communication. Background technique [0003] An optical receptacle is used as a part for optically connecting an optical fiber connector to an optical element such as a light receiving element or a light emitting element in an optical module of an optical communication transceiver. [0004] In recent years, along with the increase of IP communication, the speed-up of the transceiver for optical communication is requested|required. Generally, the shape of a transceiver using a socket-type optical mod...

AI Technical Summary

Problems solved by technology

[0010] However, since the method of the prior document 1 uses a GI fiber whose mode field diameter changes periodically, there is a problem that the length of the GI fiber must be strictly controlled in order to obtain an optimum mode field diameter. , so that the management on manufacturing is more difficult

[0011] In addition, there is a problem that, when thermally bonding an optical fiber whose refractive index varies stepwise from the center of the core to the outer periphery with respect to the radial direction, such as GI optical fiber, the end face of the optical fiber is melted. On the other hand, in the integrated thermal bonding technology, core wires with different refractive indices are dissolved and mixed, so it is difficult to manage the refractive index around the thermally bonded part, resulting in increased light loss

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