CN-121986279-A - Optical module

CN121986279ACN 121986279 ACN121986279 ACN 121986279ACN-121986279-A

Abstract

The disclosure discloses an optical module, including a light receiving part, the light receiving part includes a first light receiving assembly, a second light receiving assembly, a third light receiving assembly and a branching component, the first light receiving assembly and the second light receiving assembly are located at one side of the light receiving part. The branching component is disposed along the length direction of the light receiving member. The light-emitting signals are incident to the light-emitting part of the beam-dividing component and emitted from the light-receiving part of the beam-dividing component, the light-receiving signals with the first wavelength, the second wavelength and the third wavelength are incident to the light-receiving part of the beam-dividing component, reflected by the light-emitting part of the beam-dividing component and then are separated into the first wavelength light signal, the second wavelength light signal and the third wavelength light signal, and emitted. In the present disclosure, the branching component is disposed along the length direction of the light receiving member, and the optical path of the emitted light signal and the optical path of the received light signal overlap in the width direction of the light receiving member to reduce the width dimension of the light receiving member.

Inventors

WEI YONGJUN
XUE DENGSHAN
ZHAO SHAOKUN
ZHAO QISHENG

Assignees

青岛海信宽带多媒体技术有限公司

Dates

Publication Date: 20260505
Application Date: 20250214
Priority Date: 20240613

Claims (20)

An optical module, comprising: The optical receiving component comprises three optical receiving assemblies and a light emitting component, wherein the three optical receiving assemblies are used for transmitting optical signals with different wavelengths; The optical receiving component further comprises a branching component, the received light signals with a first wavelength, a second wavelength and a third wavelength emitted by the optical fiber adapter are incident to the received light incident position of the first end of the branching component, reflected by the emitted light incident position of the second end of the branching component and then are separated into the first wavelength light signal, the second wavelength light signal and the third wavelength light signal, and then emitted, the first wavelength light signal, the second wavelength light signal and the third wavelength light signal are respectively incident to the corresponding optical receiving component, wherein the first wavelength light signal comprises the received light signal with the first wavelength, the second wavelength light signal comprises the received light signal with the second wavelength, and the third wavelength light signal comprises the received light signal with the third wavelength, or The light receiving component further comprises a first light component, the first light component comprises a light filtering component, a first light filter, a second light filter and a third light filter, the light filtering component is located in the light outlet direction of the optical fiber adapter and used for separating third wavelength light signals from received light signals, the first light filter is located on the first light outlet path of the light filtering component and used for reflecting the third wavelength light signals, the first light receiving component is located on the reflection light path of the first light filter, the second light filter is located on the second light outlet path of the light filtering component and used for reflecting first wavelength light signals and second wavelength light signals in the received light signals, the third light filter is located on the reflection light path of the second light filter and used for transmitting the first wavelength light signals and reflecting the second wavelength light signals, the second light receiving component is located on the transmission light path of the third light filter and the third light receiving component is located on the reflection light path of the third light filter.
The optical module according to claim 1, wherein the first end of the beam splitter is disposed corresponding to the first end of the beam receiving element, the second end of the beam splitter is disposed corresponding to the second end of the beam receiving element, the light signal emitted from the light emitting element is incident on the light incident portion of the second end of the beam splitter and is emitted from the light incident portion of the first end of the beam splitter, or The first light assembly is located between the light emitting component and the fiber optic adapter.
The optical module of claim 2, wherein the three light receiving assemblies include a first light receiving assembly, a second light receiving assembly, and a third light receiving assembly, the first light receiving assembly and the second light receiving assembly being located on one side of the light receiving member, the third light receiving assembly being located on the other side of the light receiving member.
The optical module of claim 3, wherein the first end of the beam splitter has a first light exit, the second end of the beam splitter has a second light exit and a third light exit, the first wavelength optical signal is incident on the second light receiving element after exiting from the second light exit, the third wavelength optical signal is incident on the first light receiving element after exiting from the first light exit, and the second wavelength optical signal is incident on the third light receiving element after exiting from the third light exit.
The optical module according to claim 3, wherein the wave splitting assembly comprises a first substrate, a first end face of the first substrate is arranged corresponding to a first end of the light receiving component, a second end face of the first substrate is arranged corresponding to a second end of the light receiving component, a first wave plate, a second wave plate and a third wave plate are sequentially arranged on the first end face of the first substrate, a fourth wave plate, a fifth wave plate and a sixth wave plate are sequentially arranged on the second end face of the first substrate, the first wave plate and the fourth wave plate are oppositely arranged, the second wave plate and the fifth wave plate are oppositely arranged, and the third wave plate and the sixth wave plate are oppositely arranged; The light emitting component emits light signals which are transmitted to the optical fiber adapter through the fourth wave plate and the first wave plate in sequence, the light receiving signals emitted by the optical fiber adapter are transmitted through the first wave plate in sequence, the fourth wave plate and the second wave plate are reflected, the fifth wave plate is reflected and transmitted through the third wave plate, the third wave plate is reflected and transmitted through the sixth wave plate, so that the first wavelength light signals are emitted through the fifth wave plate, the third wavelength light signals are emitted through the third wave plate, and the second wavelength light signals are emitted through the sixth wave plate.
The light module of claim 5, the light receiving part further comprising a first reflective sheet, a second reflective sheet, and a third reflective sheet; the first reflecting sheet is positioned between the fifth wave plate and the second light receiving component, and faces the fifth wave plate and the second light receiving component so as to reflect the first wavelength light signal to the second light receiving component; the second reflecting sheet is positioned between the third wave plate and the first light receiving component, and faces the third wave plate and the first light receiving component so as to reflect the third wavelength light signal to the first light receiving component; the third reflecting sheet is positioned between the sixth wave plate and the third light receiving component, and faces the sixth wave plate and the third light receiving component so as to reflect the second wavelength light signal to the third light receiving component; The light receiving part further comprises a first filter, a second filter and a third filter, wherein the first filter is positioned on the reflection light path of the second reflector, the second filter is positioned on the reflection light path of the first reflector, and the third filter is positioned on the emergent light path of the sixth filter; The first filter plate is attached to the top of the first light receiving component, the second filter plate is attached to the top of the second light receiving component, and the third filter plate is connected with the third reflector.
The optical module of claim 6, wherein the first, second and third optical receiving assemblies each comprise a receiving cap and a receiving socket, the receiving cap being provided on the receiving socket, the receiving socket being provided with an optical receiving chip to receive an optical signal; The receiving pipe cap of the first light receiving component is provided with a lens, the lens protrudes out of the receiving pipe cap, a support is arranged on the receiving pipe cap and is provided with a first light-passing hole, the support is provided with a first filter, and the first filter blocks the first light-passing hole so that an optical signal is filtered by the first filter and then enters the first light receiving component; The receiving pipe cap of the second light receiving component is provided with a lens, the lens is not protruded out of the receiving pipe cap, a second filter is arranged on the receiving pipe cap, and the second filter is covered on the second lens, so that the optical signal is filtered by the second filter and then is incident to the second light receiving component.
A light module according to claim 3, wherein the first end of the beam splitter assembly is directed towards the fiber optic adapter and the second end is directed towards the light emitting component.
The optical module of claim 8, wherein the first end of the beam splitter assembly has a first light exit, the second end of the beam splitter assembly has a second light exit and a third light exit, the second light receiving assembly is positioned in the light exit direction of the second light exit, the first light receiving assembly is positioned in the light exit direction of the first light exit, and the third light receiving assembly is positioned in the light exit direction of the third light exit.
The optical module according to claim 9, wherein the wave splitting assembly comprises a first substrate, a first end face of the first substrate is arranged corresponding to a first end of the light receiving component, a second end face of the first substrate is arranged corresponding to a second end of the light receiving component, a first wave plate, a second wave plate and a third wave plate are sequentially arranged on the first end face of the first substrate, a fourth wave plate, a fifth wave plate and a sixth wave plate are sequentially arranged on the second end face of the first substrate, the first wave plate and the fourth wave plate are oppositely arranged, the second wave plate and the fifth wave plate are oppositely arranged, and the third wave plate and the sixth wave plate are oppositely arranged; The light emitting component emits light signals which are transmitted to the optical fiber adapter through the fourth wave plate and the first wave plate in sequence, the light receiving signals transmitted by the optical fiber adapter are transmitted through the first wave plate in sequence, the fourth wave plate is reflected, the second wave plate is reflected and transmitted, the light receiving signals are reflected and transmitted through the fifth wave plate after being reflected through the second wave plate, the light receiving signals are reflected through the third wave plate after being reflected through the fifth wave plate, the light receiving signals are transmitted through the sixth wave plate, so that the first wavelength light signals are emitted through the fifth wave plate, the third wavelength light signals are emitted through the second wave plate, and the second wavelength light signals are emitted through the sixth wave plate.
The optical module according to claim 8, wherein the wave splitting assembly comprises a first substrate, a first end face of the first substrate is arranged corresponding to a first end of the light receiving component, a second end face of the first substrate is arranged corresponding to a second end of the light receiving component, a first wave plate, a second wave plate, a third wave plate and a seventh wave plate are sequentially arranged on the first end face of the first substrate, a fourth wave plate, a fifth wave plate and a sixth wave plate are sequentially arranged on the second end face of the first substrate, the first wave plate and the fourth wave plate are oppositely arranged, the second wave plate and the fifth wave plate are oppositely arranged, and the third wave plate and the sixth wave plate are oppositely arranged; The light emitting part emits light signals which are transmitted to the optical fiber adapter through the fourth wave plate and the first wave plate in sequence, the light receiving signals transmitted by the optical fiber adapter are transmitted through the first wave plate in sequence, the fourth wave plate is reflected, the second wave plate is reflected and transmitted, the light receiving signals are reflected through the fifth wave plate and the third wave plate after being reflected through the second wave plate, the light receiving signals are reflected and transmitted through the sixth wave plate and are transmitted through the seventh wave plate after being reflected and transmitted through the sixth wave plate, so that the first wavelength light signals are emitted through the sixth wave plate, the third wavelength light signals are emitted through the second wave plate, and the second wavelength light signals are emitted through the seventh wave plate.
The light module of claim 8, wherein the light emitting component comprises: A first light emitting assembly, the light exiting direction facing the fiber optic adapter; a second light emitting assembly; the side wall where the third light emitting component is positioned is connected with the side wall where the first light emitting component is positioned; The second light emitting assembly and the first light emitting assembly are located on the same side wall of the light emitting component, or the second light emitting assembly and the first light emitting assembly are located on different side walls of the light emitting component, and the side wall where the second light emitting assembly is located is connected with the side wall where the first light emitting assembly is located.
The light module of claim 8, the light receiving means further comprising: The first reflecting sheet is positioned in the transmission direction of the first wavelength optical signal emitted by the wave dividing assembly; the second light receiving component is positioned on the reflection light path of the first reflecting sheet; The second reflecting sheet is positioned in the transmission direction of the third wavelength optical signal emitted by the wave dividing assembly; the first light receiving component is positioned on the reflection light path of the second reflecting sheet; The third reflecting sheet is positioned in the transmission direction of the second wavelength optical signal emitted by the wave-dividing assembly; the third light receiving element is positioned on the reflection light path of the third reflection sheet.
The light module of claim 8, the light receiving component further comprising a fourth light receiving assembly comprising: A first light receiving chip; The first end of the wave dividing component faces the optical fiber adapter, and the second end of the wave dividing component faces the light emitting component.
The light module of claim 14, the light receiving means further comprising: The second reflecting sheet is positioned in the transmission direction of the third wavelength optical signal emitted by the wave dividing assembly; the first light receiving component is positioned on the reflection light path of the second reflecting sheet; The first light receiving component can be positioned on a reflection light path of the first reflecting sheet, and the second light receiving component can be positioned on a reflection light path of the second reflecting sheet.
The optical module of claim 14, wherein the first light receiving assembly and the fourth light receiving assembly are located on the same side of the light receiving member, the first light receiving assembly being further from the light emitting member than the fourth light receiving assembly, the first light receiving chip being closer to the light emitting member than the second light receiving chip; Or alternatively The first light receiving element and the fourth light receiving element are located on different sides of the light receiving member, the first light receiving element is further from the light emitting member than the fourth light receiving element, and the second light receiving chip is closer to the light emitting member than the first light receiving chip.
The light module of claim 3, the light receiving component further comprising a first housing; The second light receiving component and the first light receiving component are positioned on one side wall of the first shell, and the third light receiving component is positioned on the other side wall of the first shell.
The light module of claim 17, wherein the third light receiving assembly is disposed obliquely with respect to a sidewall where the third light receiving assembly is located, and the second light receiving assembly is disposed obliquely with respect to a sidewall where the second light receiving assembly is located.
The optical module of claim 17, wherein a distance between a central axis of the light outlet of the light emitting part and a central axis of the optical fiber adapter along a width direction of the light receiving part is smaller than a preset value, and the filter assembly is a filter.
The optical module according to claim 17, wherein a distance between a central axis of the light outlet of the light emitting part and a central axis of the optical fiber adapter in a width direction of the light receiving part is larger than a preset value, the filter assembly comprising: A second substrate having a first end disposed corresponding to the first end of the light receiving member and a second end disposed corresponding to the second end of the light receiving member; an eighth wave plate connected to the first end of the second substrate; A ninth wave plate connected with the first end of the second substrate and positioned in the light emitting direction of the optical fiber adapter; a tenth wave plate connected with the second end of the second substrate, arranged opposite to the eighth wave plate and positioned in the transmission direction of the second optical filter; An eleventh wave plate connected with the second end of the second substrate, arranged opposite to the ninth wave plate and positioned on the reflection light path of the eighth wave plate; the ninth wave plate is positioned on the reflection light path of the eleventh wave plate.

Description

Optical module The present application claims priority to the chinese patent office, application number 202410764520.3, at 13, 2024, 12,24, 20241921629. X, at 24, 2024, 12, 202411921600.1, the entire contents of which are incorporated herein by reference. Technical Field The disclosure relates to the technical field of optical fiber communication, and in particular relates to an optical module. Background With the development of new business and application modes such as cloud computing, mobile internet, video and the like, the development and progress of optical communication technology become more and more important. In the optical communication technology, the optical module is a tool for realizing the mutual conversion of optical signals, is one of key devices in optical communication equipment, and the transmission rate of the optical module is continuously improved along with the development of the optical communication technology. Disclosure of Invention The embodiment of the disclosure provides an optical module, which comprises an optical receiving component, an optical transmitting component and an optical receiving component, wherein a first end of the optical receiving component is connected with an optical fiber adapter, and a second end of the optical receiving component is connected with the optical transmitting component, and the light emitting direction of the optical transmitting component faces to the optical fiber adapter; The optical receiving component further comprises a branching component, the received light signals with a first wavelength, a second wavelength and a third wavelength emitted by the optical fiber adapter are incident to the received light incident position of the first end of the branching component, reflected by the emitted light incident position of the second end of the branching component and then are separated into the first wavelength light signal, the second wavelength light signal and the third wavelength light signal, and then emitted, the first wavelength light signal, the second wavelength light signal and the third wavelength light signal are respectively incident to the corresponding optical receiving component, wherein the first wavelength light signal comprises the received light signal with the first wavelength, the second wavelength light signal comprises the received light signal with the second wavelength, and the third wavelength light signal comprises the received light signal with the third wavelength, or The light receiving component further comprises a first light component, the first light component comprises a light filtering component, a first light filter, a second light filter and a third light filter, the light filtering component is located in the light outlet direction of the optical fiber adapter and used for separating third wavelength light signals from received light signals, the first light filter is located on the first light outlet path of the light filtering component and used for reflecting the third wavelength light signals, the first light receiving component is located on the reflection light path of the first light filter, the second light filter is located on the second light outlet path of the light filtering component and used for reflecting first wavelength light signals and second wavelength light signals in the received light signals, the third light filter is located on the reflection light path of the second light filter and used for transmitting the first wavelength light signals and reflecting the second wavelength light signals, the second light receiving component is located on the transmission light path of the third light filter and the third light receiving component is located on the reflection light path of the third light filter. The embodiment of the disclosure also provides an optical module, which comprises: The light receiving component comprises a first shell, a first light receiving component, a second light receiving component and a third light receiving component, wherein the first shell comprises a bottom plate, a first side wall, a second side wall, a third side wall and a fourth side wall which are sequentially connected, the first side wall is connected with the optical fiber adapter, the second side wall is respectively connected with the first light receiving component and the second light receiving component, the third side wall is connected with the light emitting component, the fourth side wall is connected with the third light receiving component, and the light emitting direction of the light emitting component faces the optical fiber adapter; the light receiving component further comprises a first cover plate, the first cover plate is covered on the first shell to form a first cavity, a branching component is arranged in the first cavity, the branching component is arranged along the length direction of the second side wall, so that the branching component is arranged along the length di