CN110967793B - Optical module - Google Patents
Optical module Download PDFInfo
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- CN110967793B CN110967793B CN201811623273.6A CN201811623273A CN110967793B CN 110967793 B CN110967793 B CN 110967793B CN 201811623273 A CN201811623273 A CN 201811623273A CN 110967793 B CN110967793 B CN 110967793B
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- lens group
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms 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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4215—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The application discloses an optical module, which comprises a receiving end component, a transmitting end component, a light-transmitting main module, a light-transmitting sub-module and a circuit board; the light-transmitting main module comprises a first lens group, a second lens group, a light path conversion structure and a shell fixedly assembled with the components; the light path conversion structure at least comprises a light filtering surface and a reflecting surface; the light filtering surface and the reflecting surface are arranged in transmission light paths of the first lens group and the second lens group, and the condition that light transmitted by the first lens group is transmitted to the light filtering surface and then reflected to the second lens group through the emitting surface is met, or the light reflected by the second lens group enters the light filtering surface after being reflected by the reflecting surface and then is transmitted to the first lens group is met; the light-transmitting sub-module comprises a third lens group, and the third lens group faces one side of the circuit board and is aligned with the transmitting end component or the receiving end component; the setting position of the light-transmitting submodule meets the condition that light reflected by the light-filtering surface is transmitted to the third lens group, or the light transmitted by the third lens group is transmitted to the light-filtering surface and then is reflected to the first lens group by the light-filtering surface.
Description
The present application claims priority from the chinese patent application filed on 30/9/2018 under the name of "a kind of optical module" with the application number of 201811161230.0 from the chinese patent office, the entire contents of which are incorporated herein by reference.
Technical Field
The application relates to the field of optical transmission, in particular to an optical module.
Background
In an optical transmission network, optical modules transmit and receive optical signals over optical fibers. The light transmission module is used as a light path core component in the optical module and has the function of coupling light emitted by the laser into the optical fiber or receiving light emitted by the optical fiber into the photodetector. For example, the QSFP DD 400G SR8 optical module integrates a 4-channel TX end (transmit end) and a 4-channel RX end (receive end).
However, each transmission channel of the optical module has only one function, and is used for transmitting light emitted by a laser into an optical fiber or receiving light emitted by the optical fiber into a photodetector.
Disclosure of Invention
The application provides an optical module to solve the problem that each transmission channel of the existing optical module only has one function of sending or receiving optical signals.
The application provides an optical module, includes: the receiving end assembly, the transmitting end assembly, the light-transmitting main module, the light-transmitting sub-module and the circuit board;
the receive end assembly and the transmit end assembly are disposed on the circuit board;
the light transmission module comprises a first lens group, a second lens group, a light path conversion structure and a shell fixedly assembled with the components;
the coupling lenses of the first lens group are respectively aligned with optical fibers connected to the optical module and used for coupling optical signals to the optical fibers or leading out the optical signals in the optical fibers;
the second lens group is arranged on one side of the light-transmitting main module, which faces the circuit board, and is aligned with the receiving end assembly or the transmitting end assembly;
the light path conversion structure at least comprises a light filtering surface and a reflecting surface; the light filtering surface and the reflecting surface are arranged in transmission light paths of the first lens group and the second lens group, and the condition that light transmitted by the first lens group is transmitted to the light filtering surface and then reflected to the second lens group through the emitting surface is met, or the light reflected by the second lens group enters the light filtering surface after being reflected by the reflecting surface and then is transmitted to the first lens group is met;
the light-transmitting sub-module comprises a third lens group which is arranged between the light-transmitting main module and the circuit board, faces one side of the circuit board and is aligned with the transmitting end component or the receiving end component; the setting position of the light-transmitting submodule meets the condition that light reflected by the light-filtering surface is transmitted to the third lens group, or the light reflected by the third lens group is transmitted to the light-filtering surface and then reflected to the first lens group by the light-filtering surface.
Alternatively to this, the first and second parts may,
the third lens group is aligned with the receiving end assembly; the second lens group is aligned with the firing end assembly.
Optionally, the second lens group is aligned with the receiving end assembly; the third lens group is aligned with the firing end assembly.
Alternatively to this, the first and second parts may,
the receiving end assembly comprises a first receiving end assembly and a second receiving end assembly; the second lens group is aligned with the first receiving end assembly; the third lens group is aligned with the second receiving end component.
Optionally, the first receiving end assembly and the second receiving end assembly receive light with different wavelengths.
Alternatively to this, the first and second parts may,
the transmitting end assembly comprises a first transmitting end assembly and a second transmitting end assembly; the second lens group is aligned with the first emitter assembly; the third lens group is aligned with the second firing end assembly.
Optionally, the first and second transmitting side assemblies emit different wavelengths of light.
Optionally, the light-transmitting sub-module is detachably disposed in the optical module.
Optionally, the surface of the light filtering surface is a plated film or a filter plate.
Optionally, the light-transmitting submodule further includes a housing for fixing the third lens group.
The present application further provides an optical module, including: the receiving end assembly, the transmitting end assembly, the light-transmitting main module, the light-transmitting sub-module and the circuit board;
the receiving end assembly and the transmitting end assembly are disposed on the circuit board;
the light-transmitting sub-module is detachably assembled with the light-transmitting main module, and when the light-transmitting main module and the light-transmitting sub-module are assembled together, the optical module works in a bidirectional transceiving mode; when the light-transmitting sub-module is separated from the light-transmitting main module, the optical module works in a one-way transceiving mode.
The present application further provides an optical module, including: a receiving terminal assembly, a transmitting terminal assembly, a light-transmitting main module and a circuit board;
the receiving end assembly and the transmitting end assembly are disposed on the circuit board;
the light-transmitting main module comprises a first lens group, a second lens group, a light path conversion structure and a shell fixedly assembled with the components;
the coupling lenses of the first lens group are respectively aligned with optical fibers connected to the optical module and used for coupling optical signals to the optical fibers or leading out the optical signals in the optical fibers;
the second lens group is arranged on one side of the light-transmitting main module, which faces the circuit board, and is aligned with the receiving end assembly or the transmitting end assembly;
the light path conversion structure at least comprises a light filtering surface and a reflecting surface; the light filtering surface and the reflecting surface are arranged in transmission light paths of the first lens group and the second lens group, and the light transmitted by the first lens group is transmitted to the light filtering surface and then reflected to the second lens group through the emitting surface, or the light reflected by the second lens group enters the light filtering surface after being reflected by the reflecting surface and then is transmitted to the first lens group.
Compared with the prior art, the method has the following advantages:
the present application provides an optical module by disposing a sub-body including a third lens group below a main body; and arranging a second photodetector array on the PCB; the optical module realizes that the transmission channel has the function of sending and receiving optical signals, and solves the problem that each transmission channel of the existing optical module only has one function of sending or receiving optical signals.
Drawings
Fig. 1 is a schematic diagram of a transmission channel for transmitting light emitted by a laser to an optical fiber according to a third embodiment of the present application.
Fig. 2 is a schematic diagram of a transmission channel for receiving light emitted from an optical fiber into a photodetector according to a third embodiment of the present application.
Fig. 3 is a structural diagram of an optical module according to a first embodiment of the present application.
Fig. 4 is a structural diagram of a sub-body of an optical module according to a first embodiment of the present application.
Fig. 5 is a schematic view of a main body according to a first embodiment of the present application.
Fig. 6 is a schematic view of an embedded sub-body according to a first embodiment of the present application.
Fig. 7 is a cross-sectional view of a set of transmission channels for transmitting and receiving optical signals according to a first embodiment of the present application.
Fig. 8 is a schematic optical path diagram of a transmission optical signal of an optical module including a light-transmitting sub-module according to a first embodiment of the present application.
Fig. 9 is a schematic optical path diagram of a received optical signal of an optical module including a light-transmitting sub-module according to a first embodiment of the present application.
Fig. 10 is a cross-sectional view of another set of transmission channels for transmitting and receiving optical signals according to the first embodiment of the present application.
Fig. 11 is an assembly schematic diagram of an optical module according to a first embodiment of the present application.
Fig. 12 is a schematic diagram of an optical module according to a first embodiment of the present application.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather construed as limited to the embodiments set forth herein.
A first embodiment of the present application provides an optical module, which is described in detail below with reference to fig. 3 to 11.
The first implementation mode comprises the following steps:
the optical module includes: the receiving end assembly, the transmitting end assembly, the light-transmitting main module, the light-transmitting sub-module and the circuit board;
the receiving end assembly comprises a first photoelectric detector array 1-1, the transmitting end assembly comprises a first laser array, and the first photoelectric detector array 1-1 and the first laser array 2-1 are arranged on a circuit board 5.
As shown in fig. 6 and 7, the light-transmissive main module 3-1 includes a first lens group 3-1-1 and a second lens group 3-1-2, and a housing 3-1-3 fixedly assembling the first lens group 3-1-1, the second lens group, an optical path conversion structure, and the aforementioned components. The light-transmitting sub-modules 3-2 are arranged below the light-transmitting main module 3-1.
The coupling lenses of the first lens group 3-1-1 are respectively aligned with the optical fibers 4-1 connected to the optical module, and are used for coupling optical signals to the optical fibers or leading out the optical signals in the optical fibers.
The second lens set is arranged on the light-transmitting main module, faces to one side of the circuit board, and is respectively aligned with the receiving end component and the transmitting end component: the third lens group 3-2-1 is aligned with the first photodetector array 1-1; the second lens group 3-1-2 is aligned with the first laser array 2-1.
The light path conversion structure comprises a light filtering surface and a reflecting surface; the light filtering surface and the reflecting surface are arranged in transmission light paths of the first lens group and the second lens group, and the light transmitted by the first lens group is transmitted to the light filtering surface and then reflected to the second lens group through the emitting surface, or the light reflected by the second lens group enters the light filtering surface after being reflected by the reflecting surface and then is transmitted to the first lens group. In this embodiment, the light path conversion structure is configured to convert light passing through the first lens group into the third lens group, or convert light passing through the second lens group into the first lens group.
The light-transmitting sub-module 3-2 comprises a third lens group 3-2-1, which is arranged between the light-transmitting main module 3-1 and the circuit board, and the third lens group 3-2-1 faces one side of the circuit board and is aligned with the receiving end assembly; the arrangement position of the light-transmitting submodule meets the condition that light reflected by the light-filtering surface is transmitted to the third lens group. The light-transmitting submodule further comprises a shell for fixing the third lens group.
The optical path conversion structure includes: a first light filtering surface 3-1-4 and a first reflecting surface 3-1-5; the light filtering surface is obliquely arranged and is positioned above the third lens group 3-2-1; the reflecting surface 3-1-5 is positioned above the second lens group 3-1-2.
The light path conversion structure is used for converting light rays passing through the first lens group to the third lens group, and comprises: the light filtering surface reflects the optical signal guided out by the coupling lens of the first lens group to the third lens group. As shown in FIG. 7, the light arrow direction indicates the path of the light emitted from the optical fiber 4-1 coupled to the first photodetector array 1-1, the light emitted from the optical fiber 4-1 first reaches the mirror surface of the first lens group 3-1-1, then reaches the first light filtering surface 3-1-4, and the light reflected by the first light filtering surface 3-1-4 is coupled to the first photodetector array 1-1 through the mirror surface of the third lens group 3-2-1 of the sub-body.
The light path conversion structure is used for converting light rays passing through the second lens group to the first lens group, and comprises: the reflecting surface reflects the optical signal of the second lens group and transmits the optical signal to the mirror surface of the first lens group through the filtering surface. As shown in fig. 7, the dark arrow direction indicates the path of the light emitted from the first laser array 2-1 to the optical fiber, as follows: light emitted by the first laser array 2-1 reaches the first reflecting surface 3-1-5 through the second lens group, the first reflecting surface 3-1-5 reflects the light to the first light filtering surface 3-1-4, the light is transmitted to the mirror surface of the first lens group 3-1-1 through the first light filtering surface 3-1-4, and the transmitted light is coupled to the optical fiber 4-1 through the mirror surface.
By arranging the light-transmitting sub-module comprising the third lens group 3-2-1 below the light-transmitting main module, it is achieved that the transmission channel serves as both the light-receiving channel and the light-emitting channel.
It should be noted that the transmission channel where the optical fiber 4-1 is located may be used as both the light receiving channel and the light emitting channel, or may be used as the light receiving channel at a certain time and used as the light emitting channel at another time. In order to realize that the transmission channel where the optical fiber 4-1 is located can be used as a receiving channel and a transmitting channel, the first light filtering surface 3-1-4 can be coated with a film or pasted with a filter. For example, if the second photodetector array uses the wavelength λ _1 and the first laser array 2-1 uses the wavelength λ _2, the first light-filtering surface 3-1-4 may be coated with a corresponding film system such that the light at the wavelength λ _1 is reflected and the light at the wavelength λ _2 is transmitted.
The second embodiment:
as shown in fig. 10 and 6, the optical module includes: the receiving end assembly, the transmitting end assembly, the light-transmitting main module, the light-transmitting sub-module and the circuit board;
the receiving side subassembly comprises a second photodetector array 1-2, the transmitting side subassembly comprises a second laser array 2-2, and the second photodetector array 1-2 and the second laser array 2-2 are disposed on a circuit board 5.
The light-transmitting module 3-1 comprises a first lens group 3-1-2, a second lens group 3-1-8 and a shell 3-1-3 for fixedly assembling the first lens group 3-1-2 and the second lens group 3-1-8. The light-transmitting sub-module 3-2 is arranged below the light-transmitting main module 3-1; the light-transmitting submodule 3-2 comprises a third lens group 3-2-2.
The coupling lenses of the first lens group 3-1-2 are respectively aligned with the optical fibers 4-2 connected to the optical module, and are used for coupling optical signals to the optical fibers or leading out the optical signals in the optical fibers.
The second lens group 3-1-8 and the third lens group 3-2-2 are disposed on the light-transmitting module facing the circuit board side and aligned with the receiving end component and the transmitting end component, respectively: the third lens group 3-2-2 is aligned with the second laser array 2-2; the second lens group 3-1-8 is aligned with the second photodetector array 1-2.
The light path conversion structure comprises a light filtering surface and a reflecting surface; the light filtering surface and the reflecting surface are arranged in transmission light paths of the first lens group and the second lens group, and the light transmitted by the first lens group is transmitted to the light filtering surface and then reflected to the second lens group through the emitting surface, or the light reflected by the second lens group enters the light filtering surface after being reflected by the reflecting surface and then is transmitted to the first lens group. In this embodiment, the light path conversion structure is configured to convert light passing through the first lens group into the second lens group, or convert light passing through the third lens group into the first lens group.
The light-transmitting sub-module 3-2 comprises a third lens group 3-2-2, which is arranged between the light-transmitting main module 3-1 and the circuit board, and the third lens group 3-2-2 faces one side of the circuit board and is aligned with the transmitting end component; the arrangement position of the light-transmitting sub-module meets the condition that light passing through the third lens group is transmitted to the filtering surface and then reflected to the first lens group by the filtering surface. The light-transmitting submodule further comprises a shell for fixing the third lens group.
The optical path conversion structure includes: a second light filtering surface 3-1-6 and a second reflecting surface 3-1-7; the second filtering surface is obliquely arranged and is positioned above the third lens group 3-2-2; the second reflecting surface 3-1-7 is positioned above the second lens group 3-1-8.
The light path conversion structure is used for converting light rays passing through the first lens group to the second lens group, and comprises: and the optical signal guided out by the coupling lens of the first lens group reaches the reflecting surface after being transmitted by the filtering surface, and reaches the second lens group after being reflected by the reflecting surface. As shown in fig. 10, the light arrow direction indicates the path of the light emitted from the optical fiber 4-2 coupled to the second photodetector array 1-2, which is as follows: the light emitted by the optical fiber 4-2 firstly reaches the mirror surface of the first lens group 3-1-2, then reaches the second light filtering surface 3-1-6, the light transmitted by the second light filtering surface 3-1-6 is reflected by the second reflecting surface 3-1-7 and then reaches the second lens group, and the second lens group couples the light to the second photoelectric detector array 1-2.
The light path conversion structure is used for converting light rays passing through the third lens group to the first lens group, and comprises: and the optical signal sent by the transmitting end component reaches the mirror surface of the first lens group after being reflected by the filtering surface. As shown in fig. 10, the dark arrow direction indicates the route of the light emitted from the first laser array 2-1 to reach the optical fiber of the second optical fiber group 4-2, which is as follows: light emitted by the second laser array 2-2 reaches the second light filtering surface 3-1-6 through the third lens group 3-2-2, the light is reflected to the mirror surface of the first lens group 3-1-2 through the second light filtering surface 3-1-6, and the light is coupled to the optical fiber 4-2 through the mirror surface.
By arranging the light-transmitting sub-module comprising the third lens group 3-2-2 below the light-transmitting main module, it is achieved that the transmission channel acts as both the light-receiving channel and the light-emitting channel.
It should be noted that the transmission channel where the optical fiber 4-2 is located may be used as both the light receiving channel and the light emitting channel, or may be used as the light receiving channel at a certain time and used as the light emitting channel at another time. In order to realize that the optical fiber 4-2 can be used as a receiving channel and a transmitting channel, the second light filtering surface 3-1-6 can be coated or attached with an attenuation sheet. For example, if the second photodetector array 1-2 uses the wavelength λ _1 and the second laser array 2-2 uses the wavelength λ _2, the second filter surface 3-1-6 may be coated with a corresponding film system such that the λ _1 wavelength light is transmitted therethrough and the λ _2 wavelength light is reflected.
It should be noted that, the light-transmitting sub-module is detachably disposed in the optical module, and in specific implementation, the light-transmitting sub-module and the light-transmitting main module may be integrally disposed.
In specific implementation, the first laser array 2-1 in the first embodiment may be changed to a first emitting end module, and the first photodetector array 1-1 may be changed to a second emitting end module; the second lens group is aligned with the first emitter assembly; the third lens group is aligned with the second firing end assembly. And the first transmitting end assembly and the second transmitting end assembly transmit different wavelengths of light.
In specific implementation, the second photodetector array 1-2 in the second embodiment may be changed to a first receiving end module, and the second laser array 2-2 may be changed to a second receiving end module; the second lens group is aligned with the first receiving end assembly; the third lens group is aligned with the second receiving end component. The first and second receiving end assemblies receive light at different wavelengths.
The two embodiments described above realize that the fiber channel can be used as two transmission channels or two reception channels with different wavelengths at the same time.
FIG. 8 is a schematic diagram of the optical path of an optical module including a transmission sub-module, where in FIG. 8 the optical path is the light emitted by the laser array through the third lens group to the filter surface, the light is reflected by the filter surface to the mirror surface of the first lens group, and the light is coupled to the optical fiber through the mirror surface; in fig. 9, the light path is that the light emitted from the optical fiber first reaches the mirror surface of the first lens group and then reaches the light filtering surface, and the light reflected by the light filtering surface is coupled to the photodetector array through the mirror surface of the third lens group.
Next, the effect achieved by the optical module according to the first embodiment of the present application will be described with reference to fig. 12.
As shown in fig. 12-1 and 12-5, when the light-transmitting sub-module 12-1-1 is not embedded, only the transmission and reception of the optical signal with wavelength of 850nm can be performed, and after the light-transmitting sub-module 12-1-1 is embedded, not only the transmission and reception of the optical signal with wavelength of 850nm but also the transmission and reception of the optical signal with wavelength of 910nm can be realized.
As shown in fig. 12-2 and 12-6, when the light-transmitting sub-module 12-2-1 is not embedded, only the light signal with wavelength of 910nm can be transmitted and received, and after the light-transmitting sub-module 12-2-1 is embedded, not only the transmission and reception of the light signal with wavelength of 910nm but also the transmission and reception of the light signal with wavelength of 850nm are realized.
As shown in fig. 12-3 and 12-7, transmission of optical signals of only 850nm wavelength and 850nm wavelength can be performed without embedding the light transmissive sub-module 12-3-1, while transmission and reception of optical signals of 910nm wavelength are increased after embedding the light transmissive sub-module 12-3-1.
As shown in fig. 12-4 and 12-8, when the light-transmitting sub-module 12-4-1 is not embedded, only the light signal with wavelength of 910nm can be transmitted and received, and after the light-transmitting sub-module 12-4-1 is embedded, not only the transmission and reception of the light signal with wavelength of 910nm but also the transmission and reception of the light signal with wavelength of 850nm are realized.
As can be seen from fig. 12, in the optical module according to the first embodiment of the present application, the size of the main body portion of the optical module (Lens) is equivalent to that of the optical module (Lens) of the conventional product, and at the same time, a light-transmitting sub-module portion is embedded in the lower portion of the light-transmitting main module, so that the transmission channel is doubled and the transmission rate is doubled without occupying the PCBA area and without changing the number of transmission fibers, for example, the original transmission 200G can now transmit 400G.
A second embodiment of the present application provides an optical module, including: the receiving end assembly, the transmitting end assembly, the light-transmitting main module, the light-transmitting sub-module and the circuit board;
the receiving end assembly and the transmitting end assembly are disposed on the circuit board;
the light-transmitting sub-module is detachably assembled with the light-transmitting main module, and when the light-transmitting main module and the light-transmitting sub-module are assembled together, the optical module works in a bidirectional transceiving mode; when the light-transmitting sub-module is separated from the light-transmitting main module, the optical module works in a one-way transceiving mode.
A third embodiment of the present application provides an optical module, including: a receiving terminal assembly, a transmitting terminal assembly, a light-transmitting main module and a circuit board;
the receiving end assembly and the transmitting end assembly are disposed on the circuit board;
the light-transmitting main module comprises a first lens group, a second lens group, a light path conversion structure and a shell fixedly assembled with the components;
the coupling lenses of the first lens group are respectively aligned with optical fibers connected to the optical module and used for coupling optical signals to the optical fibers or leading out the optical signals in the optical fibers;
the second lens group is arranged on one side of the light-transmitting main module, which faces the circuit board, and is aligned with the receiving end assembly or the transmitting end assembly;
the light path conversion structure at least comprises a light filtering surface and a reflecting surface; the light filtering surface and the reflecting surface are arranged in transmission light paths of the first lens group and the second lens group, and the light transmitted by the first lens group is transmitted to the light filtering surface and then reflected to the second lens group through the emitting surface, or the light reflected by the second lens group enters the light filtering surface after being reflected by the reflecting surface and then is transmitted to the first lens group.
The specific implementation mode can be seen in fig. 3, and the light-transmitting submodule 3-2 is removed.
Fig. 1 and fig. 2 are schematic diagrams of optical path transmission according to a third embodiment of the present application. Fig. 1 provides a schematic diagram of a light module implemented by using the third embodiment of the present application for sending light emitted by a laser to an optical fiber. Fig. 2 provides a schematic diagram of a photodetector for receiving light emitted from an optical fiber, which is implemented by using an optical module according to a third embodiment of the present application.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that the scope of the present invention is not limited to the embodiments described above, and that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include non-transitory computer readable media (transient media), such as modulated data signals and carrier waves.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Claims (12)
1. A light module, comprising: the receiving end assembly, the transmitting end assembly, the light-transmitting main module, the light-transmitting sub-module and the circuit board;
the receiving end assembly and the transmitting end assembly are disposed on the circuit board;
the light-transmitting main module comprises a first lens group, a second lens group, a light path conversion structure and a shell fixedly assembled with the components;
the coupling lenses of the first lens group are respectively aligned with optical fibers connected to the optical module and used for coupling optical signals to the optical fibers or leading out the optical signals in the optical fibers;
the second lens group is arranged on one side of the light-transmitting main module, which faces the circuit board, and is aligned with the receiving end assembly or the transmitting end assembly;
the light path conversion structure at least comprises a light filtering surface and a reflecting surface; the light filtering surface and the reflecting surface are arranged in transmission light paths of the first lens group and the second lens group, and the condition that light transmitted by the first lens group is transmitted to the light filtering surface and then reflected to the second lens group through the emitting surface is met, or the light reflected by the second lens group enters the light filtering surface after being reflected by the reflecting surface and then is transmitted to the first lens group is met;
the light-transmitting sub-module comprises a third lens group which is arranged between the light-transmitting main module and the circuit board, faces one side of the circuit board and is aligned with the transmitting end component or the receiving end component; the setting position of the light-transmitting submodule meets the condition that light reflected by the light-filtering surface is transmitted to the third lens group, or the light reflected by the third lens group is transmitted to the light-filtering surface and then reflected to the first lens group by the light-filtering surface.
2. The light module of claim 1,
the third lens group is aligned with the receiving end assembly; the second lens group is aligned with the firing end assembly.
3. The optical module of claim 1, wherein the second lens group is aligned with the receiver assembly; the third lens group is aligned with the firing end assembly.
4. The light module of claim 1,
the receiving end assembly comprises a first receiving end assembly and a second receiving end assembly; the second lens group is aligned with the first receiving end assembly; the third lens group is aligned with the second receiving end component.
5. The optical module of claim 4, wherein the first and second receive side components receive light at different wavelengths.
6. The light module of claim 1,
the transmitting end assembly comprises a first transmitting end assembly and a second transmitting end assembly; the second lens group is aligned with the first emitter assembly; the third lens group is aligned with the second firing end assembly.
7. The optical module of claim 6, wherein the first and second transmit side subassembly emit light of different wavelengths.
8. The optical module of claim 1, wherein the light transmissive sub-module is removably disposed in the optical module.
9. The optical module of claim 1, wherein the surface of the light filtering surface is a plated film or a filter.
10. The optical module of claim 1, wherein the light transmissive submodule further comprises a housing for holding the third lens group.
11. A light module, comprising: the receiving end assembly, the transmitting end assembly, the light-transmitting main module, the light-transmitting sub-module and the circuit board;
the receiving end assembly and the transmitting end assembly are disposed on the circuit board;
the light-transmitting sub-module is detachably assembled with the light-transmitting main module, and when the light-transmitting main module and the light-transmitting sub-module are assembled together, the optical module works in a bidirectional transceiving mode; when the light-transmitting sub-module is separated from the light-transmitting main module, the optical module works in a one-way transceiving mode.
12. A light module, comprising: a receiving terminal assembly, a transmitting terminal assembly, a light-transmitting main module and a circuit board;
the receiving end assembly and the transmitting end assembly are disposed on the circuit board;
the light-transmitting main module comprises a first lens group, a second lens group, a light path conversion structure and a shell fixedly assembled with the components;
the coupling lenses of the first lens group are respectively aligned with optical fibers connected to the optical module and used for coupling optical signals to the optical fibers or leading out the optical signals in the optical fibers;
the second lens group is arranged on one side of the light-transmitting main module, which faces the circuit board, and is aligned with the receiving end assembly or the transmitting end assembly;
the light path conversion structure at least comprises a light filtering surface and a reflecting surface; the light filtering surface and the reflecting surface are arranged in transmission light paths of the first lens group and the second lens group, and the light transmitted by the first lens group is transmitted to the light filtering surface and then reflected to the second lens group through the emitting surface, or the light reflected by the second lens group enters the light filtering surface after being reflected by the reflecting surface and then is transmitted to the first lens group.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW108124476A TW202032189A (en) | 2018-09-30 | 2019-07-11 | Optical module |
| PCT/CN2019/107219 WO2020063514A1 (en) | 2018-09-30 | 2019-09-23 | Optical module |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161230 | 2018-09-30 | ||
| CN2018111612300 | 2018-09-30 |
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| CN110967793A CN110967793A (en) | 2020-04-07 |
| CN110967793B true CN110967793B (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811623273.6A Active CN110967793B (en) | 2018-09-30 | 2018-12-28 | Optical module |
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| CN (1) | CN110967793B (en) |
| TW (1) | TW202032189A (en) |
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| CN113296200B (en) * | 2020-07-09 | 2022-11-29 | 阿里巴巴集团控股有限公司 | Optical module |
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|---|---|---|---|---|
| CN1561015A (en) * | 2004-03-08 | 2005-01-05 | �人��Ѹ�Ƽ��������ι�˾ | Three-wave-length light division multiplexer |
| JP2008225339A (en) * | 2007-03-15 | 2008-09-25 | Hitachi Cable Ltd | Optical system connection structure, optical member, and optical transmission module |
| JP2009020360A (en) * | 2007-07-12 | 2009-01-29 | Mitsubishi Electric Corp | Optical module |
| KR20110007456A (en) * | 2009-07-16 | 2011-01-24 | 주식회사 엑스엘 | Optical module and method for fabricating the same |
| CN202083815U (en) * | 2011-05-03 | 2011-12-21 | 苏州旭创科技有限公司 | Photic transmit-receive assembly for parallel transmission |
| CN102162885A (en) * | 2011-05-03 | 2011-08-24 | 苏州旭创科技有限公司 | Parallel optical transceiving component for high-speed transmission |
| CN102169214A (en) * | 2011-05-03 | 2011-08-31 | 苏州旭创科技有限公司 | Optical transceiver component for parallel transmission |
| JP5184708B1 (en) * | 2011-10-26 | 2013-04-17 | 古河電気工業株式会社 | Optical module |
| WO2013101112A1 (en) * | 2011-12-29 | 2013-07-04 | Intel Corporation | Two-dimensional, high-density optical connector |
| CN203084244U (en) * | 2012-12-28 | 2013-07-24 | 武汉电信器件有限公司 | Optical assembly for parallel transmission |
| CN104950403A (en) * | 2014-03-26 | 2015-09-30 | 鸿富锦精密工业（深圳）有限公司 | Optical coupling module, photoelectric conversion device and optical communication device |
| CN105629404A (en) * | 2016-04-08 | 2016-06-01 | 四川华拓光通信股份有限公司 | Coupling lens device applied to vertical cavity surface emitting laser |
| CN106199859B (en) * | 2016-08-29 | 2018-11-20 | 苏州易缆微光电技术有限公司 | Integrating optical transmit-receive module and preparation method thereof |
| CN106646779A (en) * | 2017-01-03 | 2017-05-10 | 青岛海信宽带多媒体技术有限公司 | Optical module |
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| TW202032189A (en) | 2020-09-01 |
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