CN109669249B - Dual-wavelength bidirectional transmission optical assembly and method - Google Patents
Dual-wavelength bidirectional transmission optical assembly and method Download PDFInfo
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- CN109669249B CN109669249B CN201811479847.7A CN201811479847A CN109669249B CN 109669249 B CN109669249 B CN 109669249B CN 201811479847 A CN201811479847 A CN 201811479847A CN 109669249 B CN109669249 B CN 109669249B
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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
- G02B6/43—Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
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Abstract
The embodiment of the invention discloses a dual-wavelength bidirectional transmission optical component and a method thereof, wherein the optical component comprises at least two photoelectric conversion components, an optical path transmission component and an optical fiber component, wherein the at least two photoelectric conversion components are arranged on a first side of the optical path transmission component; the optical fiber component is arranged on the second side of the optical path transmission component; wherein the first side is opposite to the second side; the at least two photoelectric conversion components form at least two paths of optical path structures through the optical path transmission component and perform bidirectional transmission of optical signals with the optical fiber component; the at least two photoelectric conversion components transmit at least two beams of optical signals to the optical path transmission component, the optical path transmission component is used for carrying out optical coupling on the at least two beams of optical signals, and the optical signals after the optical coupling are transmitted to the optical fiber component; and a beam of optical signals transmitted by the optical fiber component is transmitted to the at least two photoelectric conversion components after being split by the optical path transmission component, so that the bidirectional transmission of the optical signals is realized.
Description
Technical Field
The invention relates to the field of optical communication, in particular to a dual-wavelength bidirectional transmission optical component and a method.
Background
With the continuous development of applications such as cloud computing, Virtual Reality (VR), Augmented Reality (AR), 4K high-definition video, live broadcasting and the like, and the continuous expansion of the scale of enterprise networks and data centers, traffic consumption shows the trend of well-jet type growth, and is digitally displayed, traffic consumption in 2016 is 93612.2 ten thousand G, access traffic of every user mobile internet 772M, access traffic of every user mobile internet in 2017 in 9 months reaches 2007M, which is 140% higher than that in the same period in the last year. The traffic is greatly improved, and the capacity expansion and the upgrade of an optical communication network are driven to serve as the technological industry revolution trend with the strongest determinacy in the future.
Optical communication is a communication mode in which light waves are used as information carriers and optical fibers are used as transmission media, and optical modules are important devices in optical fiber communication systems and realize optical communication by transmitting optical signals.
Currently, a single-fiber single-wavelength transmission optical component, such as a 100G QSF28 optical module, is generally used for an optical module, fig. 1 is a schematic structural diagram of the existing single-fiber single-wavelength optical module, and as shown in fig. 1, 8 optical fibers are correspondingly needed when the optical module performs 4-transmission and 4-reception optical signal transmission, so that the existing single-fiber single-wavelength transmission optical component cannot meet the requirements of the existing network on the speed and the capacity, and a crosstalk problem exists in a dense optical fiber channel.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention are directed to providing a dual-wavelength bidirectional transmission optical assembly and method, which improve transmission rate and capacity and reduce crosstalk of optical signals.
The technical scheme of the invention is realized as follows:
the embodiment of the invention provides a dual-wavelength bidirectional transmission optical component, which comprises at least two photoelectric conversion components, an optical path transmission component and an optical fiber component, wherein,
the at least two photoelectric conversion components are arranged on the first side of the optical path transmission component;
the optical fiber assembly is arranged on the second side of the optical path transmission assembly; wherein the first side is opposite the second side;
the at least two photoelectric conversion components form at least two paths of optical path structures through the optical path transmission component and perform bidirectional transmission of optical signals with the optical fiber component;
the at least two photoelectric conversion components transmit at least two beams of optical signals to the optical path transmission component, the optical path transmission component is used for carrying out optical coupling on the at least two beams of optical signals, and the optical signals after optical coupling are transmitted to the optical fiber component; and a beam of optical signals transmitted by the optical fiber component is transmitted to the at least two photoelectric conversion components after being split by the optical path transmission component, so that the bidirectional transmission of the optical signals is realized.
The embodiment of the invention provides a dual-wavelength bidirectional transmission method, which comprises the following steps:
transmitting at least two beams of optical signals to the optical path transmission component through at least two photoelectric conversion components;
optically coupling the at least two beams of optical signals through the optical path transmission component, and transmitting the optically coupled optical signals to the optical fiber component;
and a beam of optical signals transmitted by the optical fiber component is split by the optical path transmission component and then transmitted to the at least two photoelectric conversion components, so that the bidirectional transmission of the optical signals is realized.
The embodiment of the invention provides a dual-wavelength bidirectional transmission optical component and a method thereof, wherein the optical component comprises at least two photoelectric conversion components, an optical path transmission component and an optical fiber component, wherein the at least two photoelectric conversion components are arranged on a first side of the optical path transmission component; the optical fiber component is arranged on the second side of the optical path transmission component; wherein the first side is opposite to the second side; the at least two photoelectric conversion components form at least two paths of optical path structures through the optical path transmission component and carry out optical signal transmission with the optical fiber component; the at least two photoelectric conversion components transmit at least two beams of optical signals to the optical path transmission component, the optical path transmission component is used for carrying out optical coupling on the at least two beams of optical signals, and the optical signals after the optical coupling are transmitted to the optical fiber component; and a beam of optical signals transmitted by the optical fiber component is transmitted to the at least two photoelectric conversion components after being split by the optical path transmission component, so that the bidirectional transmission of the optical signals is realized.
Drawings
Fig. 1 is a schematic structural diagram of a conventional single-fiber single-wavelength optical module;
fig. 2 is a schematic structural diagram of a single-fiber bidirectional optical module according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an exemplary single fiber dual wavelength bi-directional structure in accordance with an embodiment of the present invention;
fig. 4 is a dual-wavelength bidirectional transmission optical assembly according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a dual-wavelength bidirectional transmission process according to an embodiment of the present invention;
fig. 6 is a first schematic diagram of a single-fiber dual-wave transmitting optical path according to an embodiment of the present invention;
fig. 7 is a first schematic diagram of a single-fiber dual-wave receiving optical path according to an embodiment of the present invention;
fig. 8 is a second schematic diagram of a single-fiber dual-wave transmitting optical path according to an embodiment of the present invention;
fig. 9 is a second schematic diagram of a single-fiber dual-wave receiving optical path according to an embodiment of the present invention;
fig. 10 is a third schematic diagram of a single-fiber dual-wave transmitting optical path according to an embodiment of the present invention;
fig. 11 is a third schematic diagram of a single-fiber double-wave receiving optical path according to an embodiment of the present invention;
fig. 12 is a fourth schematic diagram of a single-fiber dual-wave transmitting optical path according to an embodiment of the present invention;
fig. 13 is a fourth schematic diagram of a single-fiber double-wave receiving optical path according to the embodiment of the present invention.
Detailed Description
The existing single-fiber single-wavelength transmission optical assembly is implemented based on the structure of fig. 1, and as can be seen from fig. 1, 8 optical fibers are required for transmitting 4-transmission and 4-reception optical signals, which not only requires a large number of optical fibers, but also limits the transmission rate and capacity of each optical signal.
Based on this, the embodiment of the present invention proposes to adopt a Bidirectional optical fiber (BiDi) to be applied to a wavelength division multiplexing system, and fig. 2 is a schematic structural diagram of the Bidirectional optical fiber proposed in the embodiment of the present invention, as shown in fig. 2, as compared with fig. 1, 8 optical fibers are required, and the embodiment of the present invention can realize transmission of the optical signal only by 4 optical fibers.
Fig. 3 is a schematic diagram of an exemplary single-fiber dual-wavelength bidirectional structure according to an embodiment of the present invention, as shown in fig. 3, when the present invention is applied to a wavelength division multiplexing system, for a 200G/300G/400G optical module, single-fiber dual-wavelength bidirectional transmission can be implemented only by using 8 light emitting chips, 8 light receiving chips, and 8 corresponding optical fibers, and compared with single-fiber single-wavelength transmission, the single-fiber dual-wavelength bidirectional transmission can reduce the number of ports on an optical fiber patch panel, save the cost of an optical fiber infrastructure, and also reduce a wiring space, which is beneficial to optical fiber management, and for an optical fiber port, reduce the number of optical fibers to be used, thereby reducing optical signal crosstalk at an optical fiber end.
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, the described embodiments should not be construed as limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing embodiments of the invention only and is not intended to be limiting of the invention.
Example one
An embodiment of the present invention provides a dual-wavelength bidirectional transmission optical component, which is applied in a wavelength division multiplexing system, fig. 4 is a dual-wavelength bidirectional transmission optical component proposed in an embodiment of the present invention, as shown in fig. 4, the optical component 10 includes at least two photoelectric conversion components 13, an optical path transmission component 12 and an optical fiber component 11, wherein,
at least two photoelectric conversion components 13 are arranged on a first side of the optical path transmission component 12;
the optical fiber assembly 11 is arranged at the second side of the optical path transmission assembly 12; wherein the first side is opposite to the second side;
at least two photoelectric conversion components 13 form at least two optical path structures through the optical path transmission component 12, and perform optical signal transmission with the optical fiber component 12;
at least two photoelectric conversion components 13 transmit at least two optical signals to the optical path transmission component 12, the optical path transmission component 12 optically couples the at least two optical signals, and transmits the optically coupled optical signals to the optical fiber component 11; and a beam of optical signal transmitted by the optical fiber assembly 11 is split by the optical path transmission assembly 12 and then transmitted to the at least two photoelectric conversion assemblies 13, so that bidirectional transmission of the optical signal is realized.
In the embodiment of the present invention, the photoelectric conversion module may be configured to convert an optical signal into an electrical signal, such as a light detection diode or a photodiode, and may also be configured to convert an electrical signal into an optical signal, such as a semiconductor laser or a laser diode; the fiber optic assembly may be a fiber optic port for outputting and inputting optical signals; the optical path transport assembly may include at least one lens and at least one mirror, the lens may include a condenser lens, a grid lens, the grid lens may be configured to split a beam of light into at least two beams of light, and the grid lens, the condenser lens may be configured to focus the at least two beams of split light into a beam of light, such as a spot of light.
The optical assembly according to the embodiment of the present invention may be used in a single-mode or multi-mode high-speed optical module such as 200G/300G/400G, and may also be used in a single-fiber bidirectional optical device.
In an embodiment of the present invention, the optical path transmission assembly comprises a first light transmissive component, a second light transmissive component, and a reflective component, wherein,
the first light-transmitting component is arranged on the first side of the reflecting component, and the direction of the first side of the reflecting component is consistent with that of the first side of the light path transmission component;
the second light transmission component is arranged on the second side of the reflection component, and the direction of the second side of the reflection component is consistent with that of the second side of the light path transmission component.
In the embodiment of the invention, the first light transmission component is used for refracting light emitted by the photoelectric conversion component onto the reflection component, and the second light transmission component is used for coupling at least two light signals into one light signal to the optical fiber port or splitting the light signal into at least two light signals.
Illustratively, the first and second light transmissive components may be provided as lenses.
In other embodiments, based on the optical path transmission component including a first light-transmitting component, a second light-transmitting component, and a reflecting component, embodiments of the present invention implement transmission of an optical signal from a photoelectric conversion component to an optical fiber component, including:
the first light transmission component refracts at least two light signals received from the at least two photoelectric conversion components to the reflection component; the reflection assembly is used for focusing at least two beams of optical signals, after reflection, the at least two beams of reflected optical signals are transmitted to the second light transmission assembly to be optically coupled, and then the optically coupled optical signals are transmitted to the optical fiber assembly.
In the embodiment of the invention, the first light-transmitting component is used for refracting at least two light signals received from the at least two photoelectric conversion components to the reflecting component; the second light-transmitting component is used for coupling at least two beams of optical signals and inputting the optical signals into the optical fiber component, and the reflecting component is used for reflecting the received optical signals.
Illustratively, the reflective member may be a specular reflective surface and a semi-circular ball-type reflective surface.
In other embodiments, based on the optical path transmission component including a first light-transmitting component, a second light-transmitting component, and a reflecting component, embodiments of the present invention implement transmission of an optical signal from an optical fiber component to a photoelectric conversion component, including:
the second light-transmitting component splits a beam of optical signal received from the optical fiber component into at least two beams of optical signals to be transmitted to the reflecting component; the at least two beams of optical signals are focused through the reflection assembly, and after reflection, the at least two beams of reflected optical signals are transmitted to the first light transmission assembly and refracted to the at least two photoelectric conversion assemblies.
In the embodiment of the invention, the second light-transmitting component is used for splitting light and transmitting the split light signals to the reflecting component; the first light-transmitting component is used for transmitting at least two light signals to the first light-transmitting component and refracting the light signals to the at least two photoelectric conversion components.
Illustratively, the first and second light transmissive components may be lenses.
In other embodiments, the first light transmissive component comprises at least two light transmissive components; the reflection assembly comprises at least two side reflection assemblies and a positive reflection assembly;
at least two light transmission components are arranged opposite to one positive reflection component and are positioned in the same horizontal line and arranged in parallel;
at least two side reflection subassemblies set up in opposite directions with at least two light transmission component one-to-one to at least two side reflection subassemblies symmetry set up the both sides at a positive reflection subassembly.
The second projection light-transmitting component is opposite to the positive reflection component and is positioned on the same vertical line with the positive reflection component.
In the embodiment of the invention, the first light-transmitting component is used for refracting the light signal to the light conversion component or the reflection component, and the reflection component is used for reflecting the received light beam.
In other embodiments, the optical path based transmission component comprises a first light transmissive component, a second light transmissive component, and a reflective component; the first light-transmitting component comprises at least two light-transmitting components; in an embodiment of the present invention, a wavelength division multiplexing system that transmits an optical signal from a photoelectric conversion module to an optical fiber module includes:
at least two light transmission assemblies refract at least two bundles of optical signals received from at least two photoelectric conversion assemblies to a positive reflection assembly, the at least two bundles of optical signals are reflected to two side reflection assemblies through the positive reflection assembly, after reflection, the at least two bundles of optical signals after reflection are transmitted to a second light transmission assembly to be subjected to optical coupling, and then the optical signals after optical coupling are transmitted to an optical fiber assembly.
In the embodiment of the invention, the at least two light transmission assemblies are used for refracting at least two light signals received by the at least two photoelectric conversion assemblies to one positive reflection assembly, the positive reflection assembly and the side transmission assembly are used for reflecting the light beams, and the side reflection assembly is used for reflecting the light signals to the second light transmission assembly.
In other embodiments, the optical path based transmission component comprises a first light transmissive component, a second light transmissive component, and a reflective component; the first light-transmitting component comprises at least two light-transmitting components; in an embodiment of the present invention, a wavelength division multiplexing system for transmitting an optical signal from an optical fiber assembly to a photoelectric conversion assembly includes:
the second light transmission component divides a beam of light signals received from the optical fiber component into at least two beams of light signals to be transmitted to the two side reflection components, the at least two beams of light signals are reflected to the positive reflection component through the two side reflection components, the at least two beams of light signals after reflection are transmitted to the at least two light transmission components after reflection, and the at least two beams of light signals after refraction are transmitted to the at least two photoelectric conversion components after refraction.
Through the above embodiments of transmitting the optical signal from the photoelectric conversion component to the optical fiber component and the embodiments of transmitting the optical signal from the optical fiber component to the photoelectric conversion component, it can be concluded that the transmission path of the optical path transmission component for optical transmission is reversible, and can be transmitted from the optical signal to the photoelectric conversion component as well as the optical signal to the optical fiber component, so that bidirectional transmission of the optical signal can be realized.
In other embodiments, in the process of implementing bidirectional transmission between the optical fiber assembly and the photoelectric conversion assembly, when at least two optical signals are optical signals with the same wavelength, the reflection assembly is a reflection surface with a first preset angle, the reflection surface is a mirror surface, and the first light transmission assembly is a first lens; when the at least two light signals are light signals with different wavelengths, the at least two side reflection assemblies are semicircular spherical reflection surfaces; when the at least two light signals are light signals with different wavelengths, the first light-transmitting component is a second lens; when the at least two optical signals are optical signals with different wavelengths, the reflecting component is a reflecting surface with a second preset angle.
In other embodiments, the second light transmissive component is a lens.
In the embodiment of the present invention, the second light-transmitting component may split the light beam into at least two beams, or may couple at least two beams of optical signals to the optical fiber component, and the parameters of the lens of the second light-transmitting component may be set according to the optical path, the curvature radius, and the refractive index.
The embodiment of the invention provides a dual-wavelength bidirectional transmission optical component, which comprises at least two photoelectric conversion components, an optical path transmission component and an optical fiber component, wherein the at least two photoelectric conversion components are arranged on a first side of the optical path transmission component; the optical fiber component is arranged on the second side of the optical path transmission component; wherein the first side is opposite to the second side; the at least two photoelectric conversion components form at least two paths of optical path structures through the optical path transmission component and carry out optical signal transmission with the optical fiber component; the at least two photoelectric conversion components transmit at least two beams of optical signals to the optical path transmission component, the optical path transmission component is used for carrying out optical coupling on the at least two beams of optical signals, and the optical signals after the optical coupling are transmitted to the optical fiber component; and a bundle of optical signals transmitted by the optical fiber assembly are transmitted to the at least two photoelectric conversion assemblies after being split by the optical path transmission assembly, so that the bidirectional transmission of the optical signals is realized.
Example two
Based on the same inventive concept of the first embodiment, the first embodiment of the present invention provides a dual-wavelength bidirectional transmission method based on the optical wavelength bidirectional transmission optical component, which is applied to a wavelength division multiplexing system, where the optical component includes at least two photoelectric conversion components, an optical path transmission component and an optical fiber component, fig. 5 is a schematic diagram of a dual-wavelength bidirectional transmission flow provided by the first embodiment of the present invention, and as shown in fig. 5, the wavelength division multiplexing system can implement dual-wavelength bidirectional transmission including the following steps:
and step 23, transmitting a beam of optical signals transmitted by the optical fiber assembly to at least two photoelectric conversion assemblies after the beam of optical signals is split by the optical path transmission assembly, so as to realize bidirectional transmission of the optical signals.
In the embodiment of the invention, the optical component comprises at least two photoelectric conversion components, an optical path transmission component and an optical fiber component, and the light emitted by the photoelectric conversion components can be transmitted to the optical fiber component based on the optical component, and the light output by the optical fiber component can also be transmitted to the at least two photoelectric conversion components, so that dual-wavelength bidirectional transmission can be realized based on the optical component.
Further, the optical path transmission component comprises a first light-transmitting component, a second light-transmitting component and a reflecting component, wherein the first light-transmitting component comprises at least two light-transmitting components; the reflection subassembly includes two at least side reflection subassemblies and a positive reflection subassembly, carries out the optical coupling to two at least bundles of optical signals through light path transmission subassembly to optical signal transmission to the optical fiber assembly after will optically coupling, includes:
refracting the light to a positive reflection assembly through at least two light transmission assemblies;
reflecting at least two beams of optical signals to two side reflecting assemblies through a positive reflecting assembly;
after the two side reflection assemblies reflect the light, at least two reflected light signals are transmitted to a second light transmission assembly to be optically coupled;
and transmitting the optical signal after optical coupling to an optical fiber assembly.
Correspondingly, a bundle of optical signals transmitted by the optical fiber assembly is transmitted to at least two photoelectric conversion assemblies after being split by the optical path transmission assembly, and the optical path transmission assembly comprises:
a beam of optical signals is transmitted through the optical fiber assembly, and after being split by the second light-transmitting assembly, at least two split beams of optical signals are transmitted to the two side reflection assemblies;
reflecting at least two light signals after light splitting to a positive reflection assembly through two side reflection assemblies;
after being reflected by at least one positive reflection assembly, at least two reflected light signals are transmitted to at least two light transmission assemblies for refraction;
and transmitting the at least two refracted optical signals to at least two photoelectric conversion components.
The transmission component comprises a first light-transmitting component, a second light-transmitting component and a reflecting component through a light path, wherein the first light-transmitting component comprises at least two light-transmitting components; the reflection assembly comprises at least two side reflection assemblies and a positive reflection assembly, and the optical path transmission assembly can transmit optical signals to the photoelectric conversion assembly and the optical fiber assembly from the optical signals.
The at least two photoelectric conversion assemblies of the embodiment of the invention form at least two paths of optical path structures through the optical path transmission assembly, and perform bidirectional transmission of optical signals with the optical fiber assembly, so that compared with a single-fiber single-wavelength, the number of optical fibers is reduced, the transmission rate and the capacity are improved, and meanwhile, the number of high-density transmission channels can be reduced, thereby reducing crosstalk of optical signals.
EXAMPLE III
Based on the same inventive concept of the first embodiment to the second embodiment, an embodiment of the present invention provides an optical wavelength bidirectional transmission optical assembly, including: two photoelectric conversion modules 101 and 102, two first light transmission modules 103 and 104, a front reflection module 106, two side reflection modules 105, a second light transmission module 107, and an optical fiber module 108.
Since the optical signals have different wavelengths and different propagating refractive indexes, and are correspondingly refracted by the first light-transmitting components 103 and 104, the positions where the light spots are present will be different, and therefore, in order to ensure that the optical signals can emit the same light from the two side reflection components 105 to enter the second light-transmitting component 107 and be coupled into the optical fiber component 108, analysis of different conditions needs to be performed based on the wavelengths of the optical signals.
The embodiment of the present invention provides a single-fiber dual-wave transmitting optical path for two optical signals transmitted by two photoelectric conversion components 101 and 102 to be optical signals with the same wavelength, fig. 6 is a schematic diagram of the single-fiber dual-wave transmitting optical path provided by the embodiment of the present invention, as shown in fig. 6, when the photoelectric conversion components 101 and 102 transmit optical signals to an optical fiber component 108, the photoelectric conversion components 101 and 102 respectively transmit two optical signals with the same wavelength to two first light transmission components 103 and 104, the two optical paths are of a symmetrical optical path structure, and are focused by the first lens components 103 and 104, reflected by two side reflection components 105 and a positive reflection component 106, and the two optical signals are coupled into the optical fiber component 108 through a second light transmission component 107.
Fig. 7 is a schematic diagram of a single-fiber double-wave receiving optical path according to an embodiment of the present invention, as shown in fig. 7, when the photoelectric conversion assemblies 101 and 102 receive optical signals from the optical fiber assembly 108, the optical fiber assembly 108 outputs a bundle of optical signals, the optical signals are split by the second light-transmitting assembly 107, the two side reflection assemblies 105 and the front reflection assembly 106 reflect the optical signals, and the two first light-transmitting assemblies 103 and 104 receive the optical signals onto the photoelectric conversion assemblies 101 and 102, respectively.
Through the embodiment of the invention, when the two photoelectric conversion assemblies 101 and 102 transmit optical signals with the same wavelength, the optical signals with the same wavelength can be transmitted to the optical fiber port, meanwhile, one optical signal can be split into two optical signals with the same wavelength, and the two optical signals are received by the corresponding receiving end, so that single-fiber and dual-wave bidirectional transmission can be realized, the number of optical fibers is reduced compared with the single-fiber and single-wavelength, the transmission rate and the capacity are improved, and the number of channels can be reduced for dense port channels, thereby reducing the crosstalk of the optical signals.
Example four
Based on the same inventive concept of the first to third embodiments, compared with the third embodiment, the single-fiber dual-wave transmission circuit structure is the same, and the difference is that two optical signals with different wavelengths are transmitted, and based on the difference in the wavelengths, the refractive indexes of the two optical signals are also different, and the positions of the two optical signals which show light spots are different by correspondingly refracting through the first lens, so that in order to ensure that the optical signals can emit the same light from the second reflection assembly 105 to be incident on the second light transmission assembly 107 and be coupled into the optical fiber assembly 108, the parameters of the first light transmission assembly are set according to the wavelengths of the optical signals, or the angles of the reflection surfaces of the two side reflection assemblies and the positive reflection assembly are set simultaneously, or at least two side reflection assemblies are set to be semicircular spherical reflection surfaces.
When the two photoelectric conversion modules 101 and 102 emit optical signals of different wavelengths, the reflection surface angles of the two side reflection modules 205 and one front reflection module 206 are set at the same time. FIG. 8 is a schematic diagram of a single-fiber dual-wave transmitting optical path according to an embodiment of the present inventionSecond, as shown in fig. 8, when the photoelectric conversion elements 101 and 102 emit optical signals to the optical fiber element 108, the photoelectric conversion element 101 and the photoelectric conversion element 102 emit optical signals of different wavelengths to the two first light-transmitting elements 103 and 104, for example, the first light-transmitting element 103 emits optical signals having a wavelength λ0The second light-transmitting component 104 emits light with a wavelength λ1Since the incident wavelengths are different, the emission angles of the light signals respectively incident to the regular reflection assembly 106 will change, and the angles of the reflection surfaces of the two side reflection assemblies 205 and the regular reflection assembly 206 after being set are the same
So that the two side reflection assemblies 205 reflect the same optical signal to be incident on the second light transmission assembly 107 and coupled into the optical fiber assembly 108 for optical fiber transmission.
In the above embodiment, the angles of the two side reflection assemblies 205 and the front reflection assembly 206 may be according to the emission wavelength λ of the first light transmission assembly 1030And a second light transmissive component 104 emitting a wavelength λ1And set.
Fig. 9 is a schematic diagram of a single-fiber double-wave receiving optical path according to an embodiment of the present invention, as shown in fig. 9, when the photoelectric conversion assemblies 101 and 102 receive optical signals from the optical fiber assembly 108, the optical fiber assembly 108 outputs a bundle of optical signals, the optical signals are split by the second light-transmitting assembly 107, the two side reflection assemblies 105 and the front reflection assembly 106 reflect the optical signals, and the optical signals are received by the two first light-transmitting assemblies 103 and 104 onto the photoelectric conversion assemblies 101 and 102, respectively.
When the two photoelectric conversion modules 101 and 102 emit optical signals of different wavelengths, at least two side reflection modules 305 are disposed as semicircular spherical reflection surfaces. Fig. 10 is a third schematic diagram of a single-fiber dual-wave transmitting optical path according to an embodiment of the present invention, as shown in fig. 10, when the photoelectric conversion assemblies 101 and 102 transmit optical signals to the optical fiber assembly 108, the photoelectric conversion assembly 101 and the photoelectric conversion assembly 102 transmit optical signals with different wavelengths to the two first light transmitting assemblies 103 and 104, and because incident wavelengths are different, emission angles of the optical signals respectively incident to the regular reflection assembly 106 will change, and then the two side reflection assemblies 305 after being set enable the two side reflection assemblies 305 to reflect the same optical signals to be incident to the second light transmitting assembly 107, and couple the optical signals into the optical fiber assembly 108 for optical fiber transmission.
Fig. 11 is a third schematic diagram of a single-fiber dual-wave receiving optical path according to an embodiment of the present invention, as shown in fig. 11, when the photoelectric conversion assemblies 101 and 102 receive optical signals from the optical fiber assembly 108, the optical fiber assembly 108 outputs a bundle of optical signals, the optical signals are split by the second light-transmitting assembly 107, the two side reflection assemblies 105 and the front reflection assembly 106 reflect the optical signals, and the two first light-transmitting assemblies 103 and 104 receive the optical signals onto the photoelectric conversion assemblies 101 and 102, respectively.
When the two photoelectric conversion modules 101 and 102 emit optical signals of different wavelengths, the profile parameters of the first light-transmitting module 203 are set. Fig. 12 is a fourth schematic diagram of a single-fiber dual-wave transmitting optical path according to an embodiment of the present invention, as shown in fig. 12, when the photoelectric conversion assemblies 101 and 102 transmit optical signals to the optical fiber assembly 108, the photoelectric conversion assembly 101 and the photoelectric conversion assembly 102 transmit optical signals with different wavelengths to the two first light transmitting assemblies 103 and 104, and since incident wavelengths are different, emission angles of the optical signals respectively incident to the regular reflection assembly 106 will change, and then the optical signals are reflected by the first light transmitting assemblies 203 and 204, so that the regular reflection assembly 106 reflects the same optical signals to the two side reflection assemblies 105, and are coupled into the optical fiber assembly 108 through the second light transmitting assembly 107.
Fig. 13 is a fourth schematic diagram of a single-fiber double-wave receiving optical path according to an embodiment of the present invention, as shown in fig. 13, when the photoelectric conversion assemblies 101 and 102 receive optical signals from the optical fiber assembly 108, the optical fiber assembly 108 outputs a bundle of optical signals, the optical signals are split by the second light-transmitting assembly 107, the two side reflection assemblies 105 and the front reflection assembly 106 reflect the optical signals, and the optical signals are received by the two first light-transmitting assemblies 203 and 204 onto the photoelectric conversion assemblies 101 and 102, respectively.
Through the embodiment of the invention, when optical signals with different wavelengths are sent, the angles of the reflecting surfaces of the second reflecting component 105 and the first reflecting component 106 are modified to enable the surfaces 105 to reflect the same light to be incident, and then the light is output from the optical fiber port.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (9)
1. A dual-wavelength bidirectional transmission optical module comprising at least two photoelectric conversion modules, an optical path transmission module and an optical fiber module,
the at least two photoelectric conversion components are arranged on the first side of the optical path transmission component;
the optical fiber assembly is arranged on the second side of the optical path transmission assembly; wherein the first side is opposite the second side;
the at least two photoelectric conversion components form at least two paths of optical path structures through the optical path transmission component and perform bidirectional transmission of optical signals with the optical fiber component;
the at least two photoelectric conversion components transmit at least two beams of optical signals to the optical path transmission component, the optical path transmission component is used for carrying out optical coupling on the at least two beams of optical signals, and the optical signals after optical coupling are transmitted to the optical fiber component; a beam of optical signals transmitted by the optical fiber component is split by the optical path transmission component and then transmitted to the at least two photoelectric conversion components, so that bidirectional transmission of the optical signals is realized;
the light path transmission component comprises a first light-transmitting component, a second light-transmitting component and a reflecting component;
the first light-transmitting component comprises at least two light-transmitting components; the reflection assembly comprises at least two side reflection assemblies and a positive reflection assembly;
when the at least two light signals are light signals with different wavelengths, the at least two side reflection assemblies are semi-circular spherical reflection surfaces;
when the at least two light signals are light signals with different wavelengths, the first light-transmitting component is a second lens;
when the at least two light signals are light signals with different wavelengths, the reflection assembly is a reflection surface with a second preset angle.
2. The light assembly of claim 1,
the first light-transmitting component is arranged on the first side of the reflecting component, and the direction of the first side of the reflecting component is consistent with that of the first side of the light path transmission component;
the second light-transmitting component is arranged on the second side of the reflecting component, and the direction of the second side of the reflecting component is consistent with that of the second side of the light path transmission component.
3. The light assembly of claim 2,
the first light-transmitting component refracts the at least two light signals received from the at least two photoelectric conversion components to the reflecting component; the at least two beams of optical signals are focused through the reflection assembly, and after reflection, the at least two beams of reflected optical signals are transmitted to the second light transmission assembly for optical coupling, and then the optical signals after optical coupling are transmitted to the optical fiber assembly.
4. The light assembly of claim 2,
the second light-transmitting component splits the beam of optical signals received from the optical fiber component into at least two beams of optical signals and transmits the two beams of optical signals to the reflecting component; the at least two beams of optical signals are focused through the reflection assembly, and after reflection, the at least two beams of reflected optical signals are transmitted to the first light transmission assembly and refracted to the at least two photoelectric conversion assemblies.
5. The light assembly of claim 2,
the at least two light-transmitting components are opposite to the positive reflection component and are arranged in parallel on the same horizontal line;
the at least two side reflection assemblies and the at least two light transmission assemblies are oppositely arranged in a one-to-one correspondence manner, and the at least two side reflection assemblies are symmetrically arranged on two sides of one positive reflection assembly;
the second light-transmitting component is opposite to the positive reflection component and is positioned on the same vertical line with the positive reflection component.
6. The light assembly of claim 5,
the at least two light transmission assemblies refract the at least two beams of optical signals received from the at least two photoelectric conversion assemblies to the positive reflection assembly, the at least two beams of optical signals are reflected to the two side reflection assemblies through the positive reflection assembly, after reflection, the at least two beams of optical signals after reflection are transmitted to the second light transmission assembly for optical coupling, and then the optical signals after optical coupling are sent and transmitted to the optical fiber assembly.
7. The light assembly of claim 5,
the second light transmission component splits the beam of optical signals received from the optical fiber component into at least two beams of optical signals to be transmitted to the two side reflection components, the two side reflection components reflect the at least two beams of optical signals to the positive reflection component, the at least two beams of optical signals after reflection are transmitted to the at least two light transmission components after reflection, and the at least two beams of optical signals after refraction are transmitted to the at least two photoelectric conversion components after refraction.
8. The light assembly of claim 2,
the second light-transmitting component is a lens.
9. A dual wavelength bi-directional transmission method, characterized in that the method comprises:
transmitting at least two beams of optical signals to the optical path transmission component through at least two photoelectric conversion components;
optically coupling the at least two beams of optical signals through the optical path transmission component, and transmitting the optically coupled optical signals to the optical fiber component;
a beam of optical signals transmitted by the optical fiber component is split by the optical path transmission component and then transmitted to the at least two photoelectric conversion components, so that bidirectional transmission of the optical signals is realized;
wherein the content of the first and second substances,
the light path transmission component comprises a first light-transmitting component, a second light-transmitting component and a reflecting component;
the first light-transmitting component comprises at least two light-transmitting components; the reflection assembly comprises at least two side reflection assemblies and a positive reflection assembly;
when the at least two light signals are light signals with different wavelengths, the at least two side reflection assemblies are semi-circular spherical reflection surfaces;
when the at least two light signals are light signals with different wavelengths, the first light-transmitting component is a second lens;
when the at least two light signals are light signals with different wavelengths, the reflection assembly is a reflection surface with a second preset angle.
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| EP0978748B1 (en) * | 1998-08-07 | 2004-12-01 | Sysmex Corporation | Multiple light source unit and optical system using the same |
| JP2005165104A (en) * | 2003-12-04 | 2005-06-23 | Konica Minolta Holdings Inc | Optical communication module |
| CN104459904B (en) * | 2013-09-18 | 2016-05-04 | 福州高意通讯有限公司 | A kind of single fiber bi-directional BOSA structure |
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