# US 10,371,905 B2 · Optical processing apparatus, optical connector

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- Number: US 10,371,905 B2
- Document ID: US10371905B2
- Status: Granted
- Kind: B2
- Application number: 16/131,601
- Filed: 2018-09-14
- Published: 2019-03-21
- Granted: 2019-08-06
- Earliest claimed: 2017-09-19
- Assignees: Sumitomo Electric Industries, Ltd.
- Applicants: Sumitomo Electric Industries, Ltd.
- Inventors: Mitsuharu Hirano; Akira Furuya
- Web page: https://patentgrep.com/patent/US10371905B2

## CPC

- G02B 6/4214: {the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device (G02B6/4246 takes precedence)}
- G02B 6/0083: {Details of electrical connections of light sources to drivers, circuit boards, or the like}
- G02B 6/30: for use between fibre and thin-film device
- G02B 6/34: utilising prism or grating {(G02B6/293 takes precedence)}
- G02B 6/4215: {the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers (G02B6/4246 takes precedence)}
- G02B 6/4239: {Adhesive bonding; Encapsulation with polymer material}
- G02B 6/4243: {Mounting of the optical light guide into a groove (mounting optical light guides into a groove in general G02B6/3636)}
- G02B 6/4246: {Bidirectionally operating package structures}
- G02B 6/4257: {having a supporting carrier or a mounting substrate or a mounting plate (G02B6/3648 takes precedence)}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

An optical processing apparatus includes: a circuit hoard having first and second areas arranged in a direction of a first axis; a semiconductor device having an optical coupling element; an optical connector having an optical fiber and a holder with first and second holder parts, and the optical connector being supported by the second area and the semiconductor device disposed on the first area; and a supporting base having a thickness smaller than that of the semiconductor device. The supporting base is disposed between the second holder part and the second area. The optical fiber has a first optical fiber portion supported by the first holder part, and a second optical fiber portion held by the first and second holder parts. The first optical fiber portion has a tip end and a cladding face which is positioned with respect to the optical coupling element and is separated apart from the semiconductor device.

## Claims

### Claim 1

An optical processing apparatus comprising:
a circuit board including a first area and a second area, the first area and the second area being arranged in a direction of an axis;
a semiconductor device having an optical coupling element, the semiconductor device being disposed on the first area of the circuit board;
an optical connector including a holder and an optical fiber, the optical connector being supported by the second area of the circuit board and a principal face of the semiconductor device; and
a supporting base having a thickness smaller than that of the semiconductor device,
the holder including a first holder part and a second holder part,
the supporting base being disposed between the second area of the circuit board and the second holder part of the optical connector,
the optical fiber including a first optical fiber portion and a second optical fiber portion, the first optical fiber portion being supported by the first holder part so as to extend in the direction of the axis, and the second optical fiber portion being held by the first holder part and the second holder part,
the first optical fiber portion having a cladding face and a tip end, the cladding face extending along a first reference plane, the first reference plane extending in the direction of the axis,
the cladding face being positioned with respect to the optical coupling element and being apart from the principal face of the semiconductor device.

### Claim 2 (depends on 1)

The optical processing apparatus according to claim 1, wherein
the optical connector has an oblique face extending along a second reference plane inclined with respect to the first reference plane,
the optical fiber has an end face at the tip end thereof, and
the end face extends along the second reference plane.

### Claim 3 (depends on 2)

The optical processing apparatus according to claim 2, wherein the optical connector includes a reflecting member on the oblique face.

### Claim 4 (depends on 1)

The optical processing apparatus according to claim 1, wherein
the optical fiber includes a third optical fiber portion, and
the third optical fiber portion is supported by the first holder part so as to extend in the direction of the axis.

### Claim 5 (depends on 4)

The optical processing apparatus according to claim 4, wherein
the first optical fiber portion and the second optical fiber portion are arranged along the first reference plane,
the first holder part has a recess recessed in a direction from the first reference plane to the first holder part, and
the third optical fiber portion is fixed to the recess.

### Claim 6 (depends on 1)

The optical processing apparatus according to claim 1, wherein the optical connector includes a pigtail fiber extending outward from the holder.