US 2009/0211801 A1 · OPTICAL TRANSCEIVER PROVIDING INDEPENDENT SPACES FOR ELECTRICAL COMPONENTS AND FOR OPTICAL COMPONENTS

Abstract

An optical transceiver that reduces the EMI noise leaked therefrom is reduced is disclosed. The optical transceiver of the invention provides a metal housing, an optical subassembly, and an electronic circuit. The metal housing includes a first space that installs the electronic circuit and a second space that installs the optical subassembly. The first space and the second space are electrically shielded to each other, in addition that both spaces are shielded from the external. In the optical transceiver of the invention, even the second space provides the optical path to the optical connector, which becomes a definite leak path for the EMI noise, the leakage from the first space to the external through the optical path is prevented.

Claims15

Dependent claims

An optical transceiver that provides a function for a host system to convert an optical signal to an electrical signal mutually, comprising:

an electrically conductive upper housing:
an electrically conductive lower housing configured to form a first space and a second space cooperated with said upper housing;
an electronic circuit installed in said first space;
and
an optical subassembly installed in said second space,
wherein said second space is electrically shielded from said first space.

3 more elements

An optical transceiver configured to receive an optical connector and to communicate with a host system, comprising:

an optical sub-assembly;
a circuit substrate made of multi-layered substrate for installing an electronic circuit electrically connected with said optical sub-assembly;
a metal housing including a first space and a second space, said first space being configured to install said electronic circuit therein, said second space being configured to install said sub-assembly therein, said circuit substrate extends from said second space in an end thereof to be electrically connected with said optical subassembly to an external in another end thereof to be communicated with said host system through said first space,
wherein said first space is electrically shielded from said second space and said external, and said second space is electrically shielded from said first space and said external.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

12/390,179Filed 20 Feb 2009

Priority

22 Feb 2008

Published

27 Aug 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

H05K 9/0058
Casings: specially adapted for optoelectronic applications
G02B 6/4246
Packages, e.g. shape, construction, internal or external details: bidirectionally operating package structures
G02B 6/4292
Coupling light guides with opto-electronic elements: the light guide being disconnectable from the opto-electronic element, e.g. mutually self…
H05K
Printed circuits

Optical transceiver providing independent spaces for electrical components and for optical components

Life of this patent

Optical transceiver providing independent spaces for electrical components and for optical components

Life of this patent

Abstract

Claims15