Optical receptacle having stub capable of enhancing optical coupling efficiency and optical module installing the same
AssigneeSumitomo Electric Industries, Ltd.
InventorsHiromi Nakanishi, Masaki Furumai
Life of this patent
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Abstract
The present invention provides an optical receptacle capable of reducing the optical coupling loss with the connector plug to be mated with the receptacle, and an optical module installing the receptacle. The receptacle of the invention includes an optical waveguide, a stub, and a body. The stub includes a first bore, into which the waveguide is disposed, and a second bore. The waveguide may be made of same material as that constituting the core of the optical fiber, and may have a substantially same diameter as that of the cladding. Thus, the aperture for coupling the optical fiber may be expanded.
Claims15
An optical receptacle for receiving an optical connector plug that secures an optical fiber with a core and a cladding surrounding the core, comprising:
- an optical waveguide made of material having a homogeneous refractive index;
- a stub including a first bore and a second bore, the first bore securing the optical waveguide therein;
- and
- a sleeve having a first portion and a second portion, the sleeve receiving the stub in the first portion and the optical connector plug in the second portion,
- wherein the second bore has a diameter greater than a diameter of the first bore.
An optical module to be mate with an optical connector plug that secures an optical fiber therein, the optical module comprising:
- an optical receptacle including
- an optical waveguide made of material having a homogeneous refractive index,
- a stub including first and second bores, the first bore securing the optical waveguide therein, the second bore having a diameter greater than a diameter of the first bore, and
- a sleeve having first and second portions, the sleeve receiving the stub in the first portion and the optical connector plug in the second portion;
- an optical device including a stem for mounting an semiconductor optical device thereon and a cap for enclosing the semiconductor optical device co-operated with the stem;
- and
- an alignment member arranged between the optical receptacle and the optical device to optically align the optical receptacle with respect to the optical device.
Dependencies are inferred from the claim text.