Optical module

Patent metadata

Field	Value
Publication number	US-9857546-B2
Application number	US-201615165053-A
Country	US
Kind code	B2
Filing date	May 26, 2016
Priority date	Jun 2, 2015
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

An optical module for connecting a photoelectric conversion device on a substrate to a ferrule connected to an optical fiber includes a body configured to be mounted on the substrate, a first lens disposed on the body at a side thereof connectable to the ferrule, a second lens disposed on the body at a side thereof facing the substrate, and a core disposed in the body between the first lens and the second lens, wherein a refractive index of the core is higher than a refractive index of the body.

First claim

What is claimed is:

1. An optical module for connecting a photoelectric conversion device on a substrate to a ferrule connected to an optical fiber, the optical module comprising:
a body configured to be mounted on the substrate;
a plurality of first lenses disposed on the body at a side thereof connectable to the ferrule;
a plurality of second lenses disposed on the body at a side thereof facing the substrate; and
a core disposed in the body between the plurality of first lenses and the plurality of second lenses, the core including a first rectangular plate and a second rectangular plate perpendicular to the first rectangular plate, the first rectangular plate having a first edge and a second edge opposite the first edge, the second rectangular plate having a third edge and a fourth edge opposite the third edge, the first edge of the first rectangular plate being seamlessly connected to the third edge of the second rectangular plate, the second edge of the first rectangular plate facing the plurality of first lenses, the fourth edge of the second rectangular plate facing the plurality of second lenses,
wherein a refractive index of the core is higher than a refractive index of the body.

2. The optical module as claimed in claim 1 , wherein the core has a sloped face configured to reflect light entering the core through either the plurality of first lenses or the plurality of second lenses.

3. The optical module as claimed in claim 1 , wherein the body has an opening through which the core is inserted into the body.

4. An optical module for connecting a photoelectric conversion device on a substrate to a ferrule connected to an optical fiber, the optical module comprising:
a body configured to be mounted on the substrate;
a first lens disposed on the body at a side thereof connectable to the ferrule;
a second lens disposed on the body at a side thereof facing the substrate; and
a space formed in the body between the first lens and the second lens,
a core having the same shape as the space and disposed in the space, the core including a first rectangular plate and a second rectangular plate perpendicular to the first rectangular plate, the first rectangular plate having a first edge and a second edge opposite the first edge, the second rectangular plate having a third edge and a fourth edge opposite the third edge, the first edge of the first rectangular plate being seamlessly connected to the third edge of the second rectangular plate, the first through fourth edges being not exposed from the body,
wherein a refractive index of the core is higher than a refractive index of the body.

5. The optical module as claimed in claim 4 , wherein the core is formed by filling the space with resin and then curing the resin.

6. The optical module as claimed in claim 4 , wherein the core is formed of resin separately from the body, and is then inserted into the space formed in the body.

Assignees

• Fujitsu Component Ltd

Inventors

• Zhang Hongfei
• Kurashima Shigemi
• Moriyama Satoshi
• Akieda Shinichiro
• Gappa Rie
• Kanda Mitsuki

Classifications

• G02B6/4249

  comprising arrays of active devices and fibres · CPC title

• G02B6/4246

  Bidirectionally operating package structures · CPC title

• G02B6/4292 Primary

  the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements · CPC title

• G02B6/3882

  using rods, pins or balls to align a pair of ferrule ends · CPC title

• G02B6/4206

  Optical features (G02B6/4207, G02B6/421 take precedence) · CPC title