US-20260126594-A1 - OPTICAL SIGNAL ADAPTER ASSEMBLY WITH LOSSY WAVEGUIDE AND OPTICAL SIGNAL ADAPTER SYSTEM

US20260126594A1US 20260126594 A1US20260126594 A1US 20260126594A1US-20260126594-A1

Abstract

An optical signal adapter assembly with a lossy waveguide, a connection core, a connector structure, an adapter structure, an optical signal adapter system, and an electronic device. The optical signal adapter assembly includes a connector core, an adapter, a first conductive layer, and a second conductive layer. The connector core is made of a plastic material. A plastic base material of the adapter is doped with a conductive filler and/or a magnetic filler. A slot is provided in the adapter, and the connector core is inserted in the slot. The first conductive layer is located between the connector core and the adapter and encloses the connector core. The second conductive layer encloses the adapter.

Inventors

Dingning Cheng
Caijun Zhao
Xueying Ding

Assignees

HUAWEI TECHNOLOGIES CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20251231
Priority Date: 20230703

Claims (17)

1 . An optical signal adapter assembly configured to connect a first optical module to a second optical module, the optical signal adapter assembly comprising: a connector core configured to connect to the first optical module; a first conductive layer enclosing the connector core around a transmission axis that is parallel to a transmission direction of an optical signal between the first module and the second module; an adapter, wherein a material of the adapter comprises at least one of a conductive filler or a magnetic filler, and the adapter encloses the first conductive layer around the transmission axis; and a second conductive layer enclosing the adapter around the transmission axis.
2 . The optical signal adapter assembly according to claim 1 , wherein the first conductive layer is formed on a surface that is of the connector core and that faces toward the adapter; or the first conductive layer is formed on a surface that is of the adapter and that faces toward the connector core.
3 . The optical signal adapter assembly according to claim 1 , wherein at least one of a mass doping percentage of the conductive filler or a mass doping percentage of the magnetic filler ranges from 0.5% to 40%.
4 . The optical signal adapter assembly according to claim 1 , wherein at least one of the first conductive layer or the second conductive layer is a layer structure that extends circumferentially around the transmission axis.
5 . The optical signal adapter assembly according to claim 1 , wherein the first conductive layer comprises a first conductive sublayer and a second conductive sublayer, and the first conductive sublayer and the second conductive sublayer cooperate with each other to enclose the connector core around the transmission axis; and the first conductive sublayer is formed on a surface that is of the connector core and that faces toward the adapter, and the second conductive sublayer is formed on a surface that is of the adapter and that faces toward the connector core.
6 . The optical signal adapter assembly according to claim 1 , wherein the second conductive layer is formed on a surface that is of the adapter and that faces away from the connector core.
7 . The optical signal adapter assembly according to claim 1 , wherein the optical signal adapter assembly further comprises a conductive housing, and the conductive housing is the second conductive layer.
8 . The optical signal adapter assembly according to claim 1 , wherein the optical signal adapter assembly comprises a conductive housing, and the connector core, the first conductive layer, the adapter, and the second conductive layer are located in the conductive housing; the second conductive layer comprises a third conductive sublayer and a fourth conductive sublayer, and the third conductive sublayer and the fourth conductive sublayer cooperate with each other to enclose the adapter around the transmission axis; and the third conductive sublayer is formed on a surface of the adapter, and the fourth conductive sublayer is formed on a surface of the conductive housing.
9 . The optical signal adapter assembly according to claim 1 , wherein the conductive filler comprises at least one of a carbon fiber, a nickel-coated carbon fiber, a metal conductive particle, a metal conductive fiber, carbon black, graphite, or a carbon nanotube.
10 . The optical signal adapter assembly according to claim 1 , wherein the magnetic filler comprises at least one of ferrite, iron powder, nickel-iron powder, nickel-zinc ferrite, ferric hydroxide, or magnetic ceramics.
11 . The optical signal adapter assembly according to claim 1 , wherein two opposite surfaces of the connector core and the first conductive layer are in sealed contact with each other, and the connector core is made of a conductive material.
12 . The optical signal adapter assembly according to claim 1 , wherein the optical signal adapter assembly further comprises a third conductive layer, and the third conductive layer is disposed on the connector core and extends along a direction intersecting the transmission axis, until the third conductive layer is in sealed contact with a surface of the first conductive layer.
13 . A connector structure, wherein the connector structure comprises: a connector core, wherein the connector core is configured to connect to an optical module; and a conductive layer, wherein the conductive layer at least partially encloses the connector core around a transmission axis, and the transmission axis is parallel to a transmission direction of an optical signal between the optical module and another optical module.
14 . The connector structure according to claim 13 , wherein the connector structure comprises at least one of a multipurpose push-on/pull-off connector, a lucent connector, a standard connector, or an active optical cable connector.
15 . An adapter structure, comprising: an adapter comprising at least one of a conductive filler or a magnetic filler, and a slot for inserting a connector core, wherein the slot extends along a transmission direction of an optical signal; and wherein the adapter structure further comprises at least one of a first conductive layer or a second conductive layer; the first conductive layer is formed in an annular shape around a transmission axis, and the transmission axis is parallel to the transmission direction of the optical signal, and the adapter encloses the first conductive layer around the transmission axis; the second conductive layer at least partially encloses the adapter around the transmission axis, and the transmission axis is parallel to the transmission direction of the optical signal.
16 . The adapter structure according to claim 15 , wherein the conductive filler comprises at least one of a carbon fiber, a nickel-coated carbon fiber, a metal conductive particle, a metal conductive fiber, carbon black, graphite, or a carbon nanotube.
17 . The adapter structure according to claim 15 , wherein the magnetic filler comprises at least one of ferrite, iron powder, nickel-iron powder, nickel-zinc ferrite, ferric hydroxide, or magnetic ceramics.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2024/102963, filed on July 1, 2024, which claims priority to Chinese Patent Application No. 202310811045.6, filed on July 3, 2023. The disclosures of the aforementioned applications are hereby incorporated by reference in their entireties. TECHNICAL FIELD This disclosure relates to the communication field, and in particular, to an optical signal adapter assembly with a lossy waveguide, a connector core, a connector structure, an adapter structure, an optical signal adapter system, and an electronic device. BACKGROUND With the advent of the big data era, an optical signal adapter system is widely used as an important means for big data transmission. The optical signal adapter system implements signal transmission between two optical fibers by using an optical signal adapter assembly. In addition, an electronic product in the optical signal adapter system generates electromagnetic noise (EMN). The electromagnetic noise refers to a random variation in an electrical signal, caused by thermal vibration of a circuit component or other factors, and is an electromagnetic wave that can interfere with or interrupt normal running of an electronic device. The electromagnetic noise interferes with other surrounding electronic products. To ensure performance of various electronic products in an electronic system, only electronic products that have passed related tests, such as electromagnetic compatibility (EMC) certification, can be marketed. Electromagnetic compatibility refers to capabilities of electronic devices to be compatible with each other without mutual interference under different operating conditions. With development of communication technologies, an operating speed of a chip in an electronic product continuously increases, causing a frequency range for electromagnetic radiation testing in EMC certification of the electronic product to expand from 30 MHz–1 GHz to 30 MHz–6 GHz. The U.S. FCC (Federal Communications Commission) standard requires that the frequency range for electromagnetic radiation testing in electronic product certification should be expanded to 30 MHz–40 GHz. Electromagnetic waves generated by an electromagnetic radiation source in the electronic product propagate through space and leak directly from an optical signal adapter assembly, causing the product to fail to meet a market entry certification requirement. SUMMARY OF EXAMPLE EMBODIMENTS In view of this, embodiments of this disclosure provide an optical signal adapter assembly with a lossy waveguide, a connector core, a connector structure, an adapter structure, and an optical signal adapter system. The optical signal adapter assembly includes a connector core, an adapter, a first conductive layer, and a second conductive layer. The connector core is made of a plastic material. A plastic base material of the adapter is doped with a conductive filler and/or a magnetic filler. A slot is provided in the adapter, and the connector core is inserted in the slot. The first conductive layer is located between the connector core and the adapter and encloses the connector core. The second conductive layer encloses the adapter. The second conductive layer, the adapter, the first conductive layer, and a connector form a concentric-square waveguide structure. A medium in the concentric-square waveguide structure is a plastic material filled with a conductive filler and/or a magnetic filler. The waveguide structure in the optical signal adapter assembly can change a transmission path of electromagnetic waves, so that the transmission path of the electromagnetic waves falls as much as possible into an area in which the adapter is located, thereby increasing an electromagnetic wave loss caused by the adapter. Based on this, the electromagnetic wave loss can be increased, and a shielding effect can be improved. A first aspect of this disclosure provides an optical signal adapter assembly. The optical signal adapter assembly is configured to connect a first optical module to a second optical module to implement transmission of an optical signal from the first optical module to the second optical module. The optical signal adapter assembly includes a connector core, a first conductive layer, an adapter, and a second conductive layer. The connector core is configured to connect to an optical module. The first conductive layer encloses the connector core around a transmission axis, and the transmission axis is parallel to a transmission direction of the optical signal. A material of the adapter includes a conductive filler and/or a magnetic filler, and the adapter encloses the first conductive layer around the transmission axis. The second conductive layer encloses the adapter around the transmission axis. The optical module includes but is not limited to an optical fiber and an optical transceiver module. The connector core may be a ferrule in