CN110780396A - Dual-wavelength multichannel parallel transmission optical assembly - Google Patents
Dual-wavelength multichannel parallel transmission optical assembly Download PDFInfo
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- CN110780396A CN110780396A CN201911081344.9A CN201911081344A CN110780396A CN 110780396 A CN110780396 A CN 110780396A CN 201911081344 A CN201911081344 A CN 201911081344A CN 110780396 A CN110780396 A CN 110780396A
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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
- G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
- G02B6/425—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
- G02B6/43—Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention belongs to the technical field of optical communication, and particularly provides a dual-wavelength multichannel parallel transmission optical component which comprises an optical transmitting component, an optical receiving component and a multichannel optical fiber, wherein the optical transmitting component comprises an optical transmitter and a transmitting lens matrix, and the optical receiving component comprises an optical receiver and a receiving lens matrix; the transmitting lens matrix and the multi-channel optical fiber are sequentially positioned on a transmitting light path of the light emitter; the receiving lens matrix and the light receiver are sequentially positioned on an emergent light path of the multi-channel optical fiber. The scheme realizes multi-channel multi-wavelength transmission, the incident collimating lens array and the receiving collimating lens array can adopt the same array lens, the transmission capability of the optical fiber is fully utilized, a dual-wavelength scheme is provided for high-speed parallel transmission products such as an on-board chip and an active optical cable, and the active coupling packaging scheme and the passive coupling packaging scheme are both favorably realized.
Description
Technical Field
The invention belongs to the technical field of optical communication, and particularly relates to a dual-wavelength multichannel parallel transmission optical component.
Background
With the rapid growth of services such as internet, cloud computing, big data and the like, the large-scale construction of a data center with large capacity and high bandwidth is promoted. In the field of optical communication, single-fiber bidirectional transmission is adopted to increase the transmission capacity of optical fibers, and parallel multi-channel realization of large capacity is adopted.
In practical applications, all of the conventional cob (chip on board) optical components applied to 40G SR4, 100G SR4, etc. are single-wavelength unidirectional transmission, and the Laser adopts a VCSEL (Vertical-Cavity Surface-Emitting Laser). Although the transmission capacity can be increased by increasing the number of channels, the number of channels cannot be increased infinitely, and the single-wavelength unidirectional transmission method cannot fully utilize the transmission capacity of the optical fiber. Thereby causing waste of the optical fiber transmission.
Disclosure of Invention
The object of the present invention is to overcome the problem of low transmission capacity of optical fibres in the prior art.
Therefore, the invention provides a dual-wavelength multichannel parallel transmission optical component, which comprises an optical transmitting component, an optical receiving component, a multichannel optical fiber and a lens base body, wherein the lens base body comprises a first lens base body and a second lens base body, the first lens base body comprises a first optical receiving lens array and a second optical transmitting lens array, the second lens base body comprises a second optical receiving lens array and a first optical transmitting lens array, the optical transmitting component comprises a first optical transmitter and a second optical transmitter, and the optical receiving component comprises a first optical receiver and a second optical receiver;
the first light emitting lens array, the multi-channel optical fiber, the first light receiving lens array and the first light receiver are sequentially positioned on a light emitting path of the first light emitter;
the second light emitting lens array, the multi-channel optical fiber, the second light receiving lens array and the second light receiver are sequentially located on a light emitting path of the second light emitter.
Preferably, the first light emitter comprises a first emitting chip array capable of emitting 850nm wavelength light, and the second light emitter comprises a second emitting chip array capable of emitting 910nm wavelength light;
the first optical receiver includes a first receiving chip array corresponding to the first transmitting chip array, and the second optical receiver includes a second receiving chip array corresponding to the second transmitting chip array.
Preferably, the first transmitting chip array and the second transmitting chip array are symmetrically distributed at two ends of the multi-channel optical fiber;
the first receiving chip array and the second receiving chip array are symmetrically distributed at two ends of the multichannel optical fiber.
Preferably, the first light emitting lens array comprises an incident collimating lens array, a 45 ° reflective interface, a first tilted α angle transmissive interface and a second tilted α angle transmissive interface which are sequentially located on a light emitting path of the light emitting assembly, and the multi-channel optical fiber is located on a light transmissive path of the second tilted α angle transmissive interface;
the first light receiving lens array comprises a collimating lens, an emergent focusing lens array, a second inclined α angle transmission interface, a β angle reflection interface and a receiving focusing lens array which are sequentially positioned on an emergent light path of the multi-channel optical fiber, and the light receiving assembly is positioned on the emergent light path of the receiving focusing lens array.
Preferably, the first and second tilted α and α angle transmissive interfaces are parallel to each other, and the first and second tilted α and α angle transmissive interfaces are at 103 ° to vertical.
Preferably, the β angle reflective interface is angled 32 ° from vertical.
Preferably, the second inclined α angle transmission interface is provided with an 850nm wavelength light transmission film and a 910nm wavelength light reflection film.
Preferably, the first light receiving lens array and the second light emitting lens array are integrally formed, and the second light receiving lens array and the first light emitting lens array are integrally formed.
Preferably, the first optical transmitter and the second optical receiver are located on the same side of the parallel transmission optical component.
Preferably, the light emitting assembly comprises a vertical cavity surface emitting laser.
The invention has the beneficial effects that: the invention provides a dual-wavelength multichannel parallel transmission optical component, which comprises an optical transmitting component, an optical receiving component and a multichannel optical fiber, wherein the optical transmitting component comprises an optical transmitter and a transmitting lens matrix; the transmitting lens matrix and the multi-channel optical fiber are sequentially positioned on a transmitting light path of the light emitter; the receiving lens matrix and the light receiver are sequentially positioned on an emergent light path of the multi-channel optical fiber. The scheme realizes multi-channel multi-wavelength transmission, the incident collimating lens array and the receiving collimating lens array can adopt the same array lens, the transmission capability of the optical fiber is fully utilized, a dual-wavelength scheme is provided for high-speed parallel transmission products such as an on-board chip and an active optical cable, and the active coupling packaging scheme and the passive coupling packaging scheme are both favorably realized.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a dual-wavelength multi-channel parallel transmission optical assembly of the present invention;
FIG. 2 is a schematic optical path diagram of an embodiment of a dual wavelength multi-channel parallel transmission optical assembly of the present invention;
FIG. 3 is a schematic structural diagram of another embodiment of a dual-wavelength multichannel parallel transmission optical assembly of the present invention;
FIG. 4 is a schematic structural diagram of a dual-wavelength multi-channel parallel transmission optical module according to still another embodiment of the present invention;
fig. 5 is a schematic optical path diagram of a further embodiment of the dual-wavelength multichannel parallel transmission optical component of the present invention.
Reference numerals indicate a first lens base body 100, a second lens base body 200, a first light emitter 1, an incident collimating lens array 2, a 45-degree reflection interface 3, a first inclined α -degree transmission interface 4, a second inclined α -degree transmission interface 5, a β -degree reflection interface 6, an emergent focusing lens array 7, a collimating lens 8, a light receiving lens array 9, a second light receiver 10, a multi-channel optical fiber 11, a second light emitter 12 and a first light receiver 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The embodiment of the invention provides a dual-wavelength multichannel parallel transmission optical component, which comprises an optical transmitting component, an optical receiving component, a multichannel optical fiber and a lens base body, wherein the lens base body comprises a first lens base body 100 and a second lens base body 200, the first lens base body 100 comprises a first optical receiving lens array 9 and a second optical transmitting lens array, the second lens base body 200 comprises a second optical receiving lens array 9 and a first optical transmitting lens array, the optical transmitting component comprises a first optical transmitter 1 and a second optical transmitter 12, and the optical receiving component comprises a first optical receiver 13 and a second optical receiver 10;
the first light emitting lens array, the multi-channel optical fiber 11, the first light receiving lens array 9 and the first light receiver 13 are sequentially positioned on a light emitting path of the first light emitter 1;
the second light emitting lens array, the multi-channel optical fiber 11, the second light receiving lens array 9 and the second light receiver 10 are sequentially located on a light emitting path of the second light emitter 12.
Therefore, as shown in fig. 1 to 5, the first light emitter 1 emits a beam of light, which sequentially passes through the first light emitting lens array of the first lens base 100, reaches the multi-channel optical fiber 11, and then exits through the multi-channel optical fiber 11 to the first light receiving lens array 9 on the second lens base 200 for light receiving. The second light emitter 12 emits a beam of light, which sequentially passes through the second light emitting lens array of the second lens base 200 and then reaches the multi-channel optical fiber 11, and then exits through the multi-channel optical fiber 11 to the second light receiving lens array 9 on the first lens base 100 for light reception. The two lens matrixes are respectively positioned at two sides of the multi-channel optical fiber 11, and light emitted from the left side passes through the multi-channel optical fiber 11 and then is received to the right side. In other implementation scenarios, channels can be added, not only limited to the first and second optical paths, and the first or second optical path can be a beam or an array of beams.
Preferably, the first light emitter 1 includes a first emitting chip array capable of emitting 850nm wavelength light, and the second light emitter 12 includes a second emitting chip array capable of emitting 910nm wavelength light;
the first optical receiver 13 includes a first receiving chip array corresponding to the first transmitting chip array, and the second optical receiver 10 includes a second receiving chip array corresponding to the second transmitting chip array.
Therefore, the optical transmitter can transmit light with different wavelengths, and the corresponding optical receiver receives the light with the wavelength, so that optical transmission with dual wavelengths or even multiple wavelengths can be realized.
In a preferred embodiment, the first transmitting chip array and the second transmitting chip array are symmetrically distributed at two ends of the multi-channel optical fiber 11;
the first receiving chip array and the second receiving chip array are symmetrically distributed at two ends of the multi-channel optical fiber 11.
Thus, as shown in fig. 1 and fig. 2, the first transmitting chip array, the multi-channel fiber 11 and the first receiving chip array form a set of optical path transmission components, and the second transmitting chip array, the multi-channel fiber 11 and the second receiving chip array form a set of optical path transmission components. The two optical path transmission members share the first lens base body 100 and the second lens base body 200. Therefore, parallel light path channels of the array lens are fully utilized, and coupling is facilitated.
Preferably, the first light emitting lens array comprises an incident collimating lens 8 array 2, a 45 ° reflective interface 3, a first inclined α angle transmissive interface 4 and a second inclined α angle transmissive interface 5 which are sequentially located on the emission light path of the light emitting module, and the multi-channel optical fiber 11 is located on the transmission light path of the second inclined α angle transmissive interface 5;
the first light receiving lens array 9 comprises a collimating lens 8, an emergent focusing lens array 7, a second inclined α angle transmission interface 5, a β angle reflection interface 6 and a receiving focusing lens array which are sequentially located on an emergent light path of the multi-channel optical fiber 11, and the light receiving assembly is located on the emergent light path of the receiving focusing lens array.
Thus, as shown in fig. 2, the light emitted by the first light emitter 1 sequentially enters the incident collimating lens 8 array 2, the 45 ° reflective interface 3, the first tilted α -angle transmissive interface 4, and the second tilted α -angle transmissive interface 5 on the first lens substrate 100, then exits to the multi-channel optical fiber 11, then sequentially passes through the collimating lens 8 and the exit focusing lens array 7, then enters the second tilted α -angle transmissive interface 5, the β -angle reflective interface 6, and the receiving focusing lens array on the second lens substrate 200, and finally is received by the first light receiver 13, similarly, the light emitted by the second light emitter 12 sequentially enters the incident collimating lens 8 array 2, the 45 ° reflective interface 3, the first tilted α -angle transmissive interface 4, and the second tilted α -angle transmissive interface 5 on the second lens substrate 200, then exits to the multi-channel optical fiber 11, then sequentially passes through the collimating lens 8 and the exit focusing lens array 7, then enters the second tilted α -angle transmissive interface 5, the β -angle reflective interface 6, and the receiving lens array 5 on the first lens substrate 100, and finally is received by the second light receiver 10.
The first lens base 100 and the second lens base 200 have the same configuration and are symmetrically distributed about multiple channels.
Preferably, the first α -degree oblique transmission interface 4 and the second α -degree oblique transmission interface 5 are parallel to each other, and the first α -degree oblique transmission interface 4 and the second α -degree oblique transmission interface 5 form an angle of 103 ° with the vertical direction, as shown in fig. 2, the incident collimating lens array 8 2 and the light receiving lens array 9 are disposed on the same side of the lens substrate, the exit focusing lens array 7 is disposed on the other side of the lens substrate and forms a 90 ° angle with the incident collimating lens array 8, a 45 ° interface is disposed on the lens substrate, and two parallel transmission interfaces with an oblique angle α of 103 ° are disposed on the lens substrate.
Preferably, an included angle between the β -angle reflection interface 6 and the vertical direction is 32 °, as shown in fig. 2, air is disposed between the first oblique α -angle transmission interface 4 and the second oblique α -angle transmission interface 5, and a 850nm wavelength light transmission film and a 910nm wavelength light reflection film are plated on the second oblique α -angle transmission interface 5, so that 850nm waves emitted from the first optical emitter 1 are finally received by the first optical receiver 13, and 910nm waves emitted from the second optical emitter 12 are finally received by the second optical receiver 10, wherein the second oblique α -angle transmission interfaces 5 and β -angle reflection interfaces 6 are both plated with or attached with a light reflection film, so that light transmitted through the second oblique α -angle transmission interface 5 or the second oblique β -angle reflection interface 6 is fully reflected, and transmission stability of light is ensured.
Preferably, the first light receiving lens array 9 and the second light emitting lens array are integrally formed, and the second light receiving lens array 9 and the first light emitting lens array are integrally formed. As shown in fig. 1 and 2, the first light receiving lens array 9 and the second light emitting lens array are integrally formed, so that the processing is convenient, the material is saved, and the light receiving lens array 9 can be shared.
Preferably, the first optical transmitter 1 and the second optical receiver 10 are located on the same side of the parallel transmission optical component. The light emitting assembly includes a vertical cavity surface emitting laser.
Example two:
as shown in fig. 3, the first lens base 100 and the second lens base 200 include two rows of optical paths, half of each row of optical path is used as a transmitting optical path component and half of each row of optical path is used as a receiving optical path component, and the first lens base 100 is transmitted and then received by a corresponding receiving optical path component on the second lens base 200. Other specific structures and working principles are the same as those of the first embodiment.
Example three:
as shown in fig. 4 and 5, the first lens base 100 includes two emission light paths, that is, the first optical emitter 1 and the second optical emitter 12 are both located at one side of the first lens base 100, pass through the transmission and reflection in the first lens base 100, pass through the multi-channel optical fiber 11, enter the second lens base 200, and finally exit through the second lens base 200 and are received by the first optical receiver 13 and the second optical receiver 10. The specific reflection and transmission principles are the same as those of the first embodiment, and are not described herein again.
The invention has the beneficial effects that: the invention provides a dual-wavelength multichannel parallel transmission optical component, which comprises an optical transmitting component, an optical receiving component and a multichannel optical fiber, wherein the optical transmitting component comprises an optical transmitter and a transmitting lens matrix; the transmitting lens matrix and the multi-channel optical fiber are sequentially positioned on a transmitting light path of the light emitter; the receiving lens matrix and the light receiver are sequentially positioned on an emergent light path of the multi-channel optical fiber. The scheme realizes multi-channel multi-wavelength transmission, the incident collimating lens array and the receiving collimating lens array can adopt the same array lens, the transmission capability of the optical fiber is fully utilized, a dual-wavelength scheme is provided for high-speed parallel transmission products such as an on-board chip and an active optical cable, and the active coupling packaging scheme and the passive coupling packaging scheme are both favorably realized.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (10)
1. The utility model provides a dual wavelength multichannel parallel transmission optical assembly, includes optical transmission subassembly, light receiving component and multichannel optic fibre, its characterized in that: the optical lens comprises a lens base body, a first lens base body and a second lens base body, wherein the lens base body comprises a first lens base body and a second lens base body, the first lens base body comprises a first light receiving lens array and a second light emitting lens array, the second lens base body comprises a second light receiving lens array and a first light emitting lens array, the light emitting component comprises a first light emitter and a second light emitter, and the light receiving component comprises a first light receiver and a second light receiver;
the first light emitting lens array, the multi-channel optical fiber, the first light receiving lens array and the first light receiver are sequentially positioned on a light emitting path of the first light emitter;
the second light emitting lens array, the multi-channel optical fiber, the second light receiving lens array and the second light receiver are sequentially located on a light emitting path of the second light emitter.
2. The dual wavelength multi-channel parallel transmission optical subassembly of claim 1, wherein: the first light emitter comprises a first emitting chip array capable of emitting 850nm wavelength light, and the second light emitter comprises a second emitting chip array capable of emitting 910nm wavelength light;
the first optical receiver includes a first receiving chip array corresponding to the first transmitting chip array, and the second optical receiver includes a second receiving chip array corresponding to the second transmitting chip array.
3. The dual wavelength multi-channel parallel transmission optical subassembly of claim 2, wherein: the first transmitting chip array and the second transmitting chip array are symmetrically distributed at two ends of the multichannel optical fiber;
the first receiving chip array and the second receiving chip array are symmetrically distributed at two ends of the multichannel optical fiber.
4. The dual-wavelength multichannel parallel transmission optical assembly according to claim 1, wherein said first light emitting lens array comprises an incident collimating lens array, a 45 ° reflective interface, a first tilted α angle transmissive interface and a second tilted α angle transmissive interface sequentially disposed on the emitting optical path of said light emitting assembly, said multichannel optical fiber being disposed on the transmissive optical path of said second tilted α angle transmissive interface;
the first light receiving lens array comprises a collimating lens, an emergent focusing lens array, a second inclined α angle transmission interface, a β angle reflection interface and a receiving focusing lens array which are sequentially positioned on an emergent light path of the multi-channel optical fiber, and the light receiving assembly is positioned on the emergent light path of the receiving focusing lens array.
5. The optical assembly of claim 4, wherein the first tilted α angle transmittance interface and the second tilted α angle transmittance interface are parallel to each other, and the first tilted α angle transmittance interface and the second tilted α angle transmittance interface are at an angle of 103 ° to the vertical.
6. The dual wavelength multi-channel parallel transmission optical subassembly of claim 4 wherein the β corner reflecting interface is angled 32 ° from vertical.
7. The dual-wavelength multi-channel parallel transmission optical assembly as claimed in claim 4, wherein the second inclined α corner transmission interface is provided with a 850nm wavelength optical transmission film and a 910nm wavelength optical reflection film.
8. The dual wavelength multi-channel parallel transmission optical subassembly of claim 1, wherein: the first light receiving lens array and the second light emitting lens array are integrally formed, and the second light receiving lens array and the first light emitting lens array are integrally formed.
9. The dual wavelength multi-channel parallel transmission optical subassembly of claim 1, wherein: the first optical transmitter and the second optical receiver are located on the same side of the parallel transmission optical component.
10. The dual wavelength multi-channel parallel transmission optical subassembly of claim 1, wherein: the light emitting assembly includes a vertical cavity surface emitting laser.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911081344.9A CN110780396A (en) | 2019-11-07 | 2019-11-07 | Dual-wavelength multichannel parallel transmission optical assembly |
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| CN201911081344.9A CN110780396A (en) | 2019-11-07 | 2019-11-07 | Dual-wavelength multichannel parallel transmission optical assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534362A (en) * | 2021-06-03 | 2021-10-22 | 无锡鑫巨宏智能科技有限公司 | Close-range dual-wavelength array coupling lens |
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