Opto-mechanical coupler

Patent metadata

Field	Value
Publication number	US-10345542-B2
Application number	US-201615280266-A
Country	US
Kind code	B2
Filing date	Sep 29, 2016
Priority date	Jun 28, 2016
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

An opto-mechanical coupler and corresponding method of manufacture are provided. The coupler may include a body defining a bottom surface, a receiving surface, and a reflective surface. The reflective surface may redirect optical signals between a first direction and a second direction. The receiving surface may position one or more optical fibers along the second direction such that an optical signal from the plurality of optoelectronic transceivers may be directed into the one or more optical fibers or an optical signal received from the one or more optical fibers may be directed into the plurality of the optoelectronic transceivers. The receiving surface may also define grooves to locate each optical fiber at a height relative to a first optical path in the second direction.

First claim

The invention claimed is:

1. An opto-mechanical coupler comprising:
a body defining:
a bottom surface configured to allow passage of optical signals traveling in a first direction for transmission to or from a plurality of optoelectronic transceivers disposed proximate the bottom surface;
a receiving surface configured to receive one or more optical fibers;
wet-etched optical lenses integral to the body, wherein the wet-etched optical lenses are configured to allow passage of optical signals traveling in a first direction for transmission to or from a plurality of optoelectronic transceivers disposed proximate the bottom surface; and
a wet-etched reflective surface created according to a crystal plan of a material of the body such that the reflective surface is integral to the body, wherein the wet-etched reflective surface is configured to redirect the optical signals between the first direction and the second direction,
wherein the receiving surface is configured to position the one or more optical fibers along the second direction such that an optical signal from the plurality of optoelectronic transceivers is directed into the one or more optical fibers or an optical signal received from the one or more optical fibers is directed into the plurality of the optoelectronic transceivers, and
wherein the receiving surface defines wet-etched grooves created according to a crystal plan of a material of the body and configured to precisely locate each optical fiber at a height relative to a first optical path in the second direction.

2. The opto-mechanical coupler according to claim 1 , wherein the one or more optical fibers are single mode optical fibers.

3. The opto-mechanical coupler according to claim 1 , wherein the grooves are v-shaped.

4. The opto-mechanical coupler according to claim 1 , wherein the body is at least partially made of silicon.

5. The opto-mechanical coupler according to claim 4 , wherein the at least the bottom surface, the reflective surface and the receiving surface are made of silicon.

6. The opto-mechanical coupler according to claim 4 , wherein the body is formed by etching.

7. The opto-mechanical coupler according to claim 1 , wherein the body is at least partially made of glass.

8. The opto-mechanical coupler according to claim 7 , wherein the at least the bottom surface, the reflective surface and the receiving surface are made of glass.

9. The opto-mechanical coupler according to claim 7 , wherein the body is formed by etching.

10. A method of manufacturing an opto-mechanical coupler comprising:
forming a body defining a receiving surface, a bottom surface, and a reflective surface;
wherein the bottom surface configured to allow passage of optical signals traveling in a first direction for transmission to or from a plurality of optoelectronic transceivers disposed proximate the bottom surface;
wherein the receiving surface is configured to receive one or more optical fibers; and
wherein defining the reflective surface comprises wet-etching the reflective surface according to a crystal plan of a material of the body such that the reflective surface is configured to redirect the optical signals between the first direction and the second direction,
wherein the coupler is configured to position the one or more optical fibers along the second direction such that an optical signal from the plurality of optoelectronic transceivers is directed into the one or more optical fibers or an optical signal received from the one or more optical fibers is directed into the plurality of the optoelectronic transceivers,
wherein defining the receiving surface comprises wet-etching the receiving surface according to a crystal plan of a material of the body to form one or more grooves configured to locate each optical fiber at a height relative to a first optical path in the second direction, and
wherein forming the body further comprises forming a plurality of wet-etched optical lenses configured to allow passage of optical signals traveling in a first direction for transmission to or from a plurality of optoelectronic transceivers disposed proximate the bottom surface, wherein the bottom surface supports the plurality of wet-etched optical lenses.

11. The method according to claim 10 , wherein the one or more optical fibers are single mode optical fibers.

12. The method according to claim 10 , wherein the one or more grooves are v-shaped.

13. The method according to claim 10 , wherein forming the body comprises forming the body from silicon.

14. The method according to claim 13 , wherein the at least the bottom surface, the reflective surface and the receiving surface are formed of silicon.

15. The method according to claim 13 , wherein forming the body comprises etching silicon to form the body.

16. The method according to claim 10 , wherein forming the body comprises forming the body from glass.

17. The method according to claim 16 , wherein the at least the bottom surface, the reflective surface and the receiving surface are formed of glass.

18. The method according to claim 16 , wherein forming the body comprises etching glass to form the body.

Assignees

• Mellanox Technologies Ltd

Inventors

• Rockman Sylvie
• Gridish Yaakov
• Badehi Pierre Avner

Classifications

• G02B6/423

  using guiding surfaces for the alignment · CPC title

• G02B6/4246

  Bidirectionally operating package structures · CPC title

• G02B6/4204

  the coupling comprising intermediate optical elements, e.g. lenses, holograms (encapsulated active devices H01S5/02208) · CPC title

• G02B6/4214

  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) · CPC title

• G02B6/4243 Primary

  Mounting of the optical light guide into a groove (mounting optical light guides into a groove in general G02B6/3636) · CPC title