CN210572868U - VCSEL-based CWDM optical device - Google Patents
VCSEL-based CWDM optical device Download PDFInfo
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- CN210572868U CN210572868U CN201921814644.9U CN201921814644U CN210572868U CN 210572868 U CN210572868 U CN 210572868U CN 201921814644 U CN201921814644 U CN 201921814644U CN 210572868 U CN210572868 U CN 210572868U
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Abstract
The utility model provides a CWDM optical device based on VCSEL, it includes diffraction optical device, a plurality of filters and a plurality of optical lens, wherein a plurality of filters have different wavelengths respectively, diffraction optical device one end embeds there is the receiving port, a plurality of filters set up in diffraction optical device and all with the receiving port collineation setting, a plurality of filters all are 45 contained angles rather than between the installation face, set up a plurality of through-holes on the installation face of a plurality of filters and correspond with the position of a plurality of filters respectively, a plurality of optical lens set up respectively in a plurality of through-holes. The utility model discloses set up a plurality of filters that have different wavelengths in diffraction light device, can realize the combination of optical system and COB technique and CWDM technique to realize the coarse wavelength division multiplexing of optics on board carries the chip package, further reduce the assembly degree of difficulty and the manufacturing cost of wavelength division multiplexing system.
Description
Technical Field
The utility model relates to a wavelength division multiplexing optical device especially indicates a CWDM optical device based on VCSEL.
Background
In the conventional COB (Chip On Board) technology, the laser used is mostly 850nm multimode laser, and the multichannel optical parallel communication is realized by using a parallel optical communication method. The optical devices used cannot handle the wavelength division multiplexing technology, so that the single optical channel is only a channel with one wavelength and cannot realize wavelength division multiplexing. In addition, in the conventional CWDM (coarse wavelength Division Multiplexing) technique, most of the used lasers are edge-emitting semiconductor lasers and most of the used lasers are single-mode lasers. The assembly coupling difficulty of the used optical device and the optical system is higher than that of a COB technology, large-scale mass production is not easy to realize, and the production cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the CWDM optical device based on the VCSEL is provided, so that a COB technology can be combined with a CWDM technology, optical coarse wavelength division multiplexing is realized on an on-board chip package, and the assembly difficulty and the production cost of a wavelength division multiplexing system are further reduced.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the utility model provides a CWDM optical device based on VCSEL, it includes: diffraction optical device, a plurality of filter and a plurality of optical lens, it is a plurality of the filter has different wavelength respectively, diffraction optical device one end embeds there is the receiving port, and is a plurality of the filter sets up in diffraction optical device and all sets up with the receiving port collineation, and is a plurality of all be 45 contained angles between filter and the installation face, it is a plurality of seted up a plurality of through-holes on the installation face of filter and correspond with the position of a plurality of filters respectively, it is a plurality of optical lens sets up respectively in a plurality of through-holes.
Furthermore, the filter and the optical lens are respectively provided with 6 filters.
Further, the light passing through the 6 optical lenses respectively has different wavelengths, and the wavelength interval between the light passing through the 6 optical lenses is less than or equal to 25 nm.
Furthermore, 6 all the filters are low-pass filters.
Further, the receiving port is any one of LC, FC, SC and ST standard single fiber optical interfaces.
Furthermore, a filter placing groove is arranged in the diffraction optical device, and the filter placing groove is arranged between the plurality of filters and the installation surfaces of the plurality of filters.
Furthermore, a plurality of optical glue layers are formed between the filter plates and the filter plate placing grooves.
Furthermore, the VCSEL-based CWDM optical device further includes multiple VCSELs with different wavelengths, the VCSELs are disposed on the sides of the optical lenses away from the multiple filters, and the multiple light beams with different wavelengths emitted by the VCSELs are collimated by the optical lenses and then correspondingly irradiated onto the multiple filters.
The beneficial effects of the utility model reside in that: the light with different wavelengths is collimated by the optical lenses respectively, correspondingly irradiates the filter plates, and is reflected into parallel light by the filter plates and then reaches the receiving port to be converged into a beam of light. The utility model discloses set up a plurality of filters that have different wavelengths in diffraction light device, can realize the combination of optical system and COB technique and CWDM technique to realize the coarse wavelength division multiplexing of optics on board carries the chip package, further reduce the assembly degree of difficulty and the manufacturing cost of wavelength division multiplexing system.
Drawings
The following detailed description of the specific structure of the present invention with reference to the accompanying drawings
Fig. 1 is a perspective view of a VCSEL-based CWDM optical device of the present invention 1;
fig. 2 is a perspective view 2 of a VCSEL-based CWDM optical device according to the present invention;
fig. 3 is a perspective view of a VCSEL-based CWDM optical device of the present invention 3;
fig. 4 is a perspective view of a diffraction optical device according to the present invention.
In fig. 1, 2, 3 and 4:
001-diffraction optical device, 002-filter, 003-optical lens, 004-receiving port, 005-mounting surface, 006-filter placing groove, 007-through hole
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, the utility model provides a CWDM optical device based on VCSEL, this CWDM optical device based on VCSEL includes diffraction light device 001, a plurality of filters 002 and a plurality of optical lens 003, wherein a plurality of filters 002 have different wavelengths respectively, diffraction light device 001 one end is built-in to have receiving port 004, a plurality of filters 002 set up in diffraction light device 001 and all with receiving port 004 collineation setting, all be 45 contained angles between a plurality of filters 002 and its installation face 005, set up a plurality of through-holes 007 on the installation face 005 of a plurality of filters 002 and correspond with a plurality of filters 002's position respectively, a plurality of optical lens 003 set up respectively in a plurality of through-holes 007.
In the actual working process, the light with different wavelengths is firstly collimated by the optical lenses 003 respectively, and correspondingly irradiates the filters 002, and then the filters 002 reflect the light with different wavelengths into parallel light which then reaches the receiving port 004 to be converged into a beam of light, so as to realize the synthesis of coarse wavelength division multiplexing.
Note that, light having different wavelengths and concentrated on one optical fiber is collimated by the receiving port 004, sequentially irradiated onto the plurality of filters 002, and correspondingly reflected by the plurality of filters 002 onto the plurality of optical lenses 003, thereby realizing demultiplexing of coarse wavelength division multiplexing.
It should be further noted that the plurality of filters 002 are disposed between the plurality of optical lenses 003 and the receiving port 004, so that the coarse wavelength division multiplexing synthesis and decomposition are not performed separately, that is, among the plurality of optical lenses 003, a part of the optical lenses 003 can be used as light with different wavelengths in the coarse wavelength division multiplexing synthesis to enter the diffractive optical element 001, and another part of the optical lenses 003 can be used as light with different wavelengths in the coarse wavelength division multiplexing decomposition to exit the diffractive optical element 001, and the receiving port 004 can also be correspondingly disposed in plural numbers.
From the above description, the beneficial effects of the present invention are: the light with different wavelengths is collimated by the optical lenses respectively, correspondingly irradiates the filter plates, and is reflected into parallel light by the filter plates and then reaches the receiving port to be converged into a beam of light. The utility model discloses set up a plurality of filters that have different wavelengths in diffraction light device, can realize the combination of optical system and COB technique and CWDM technique to realize the coarse wavelength division multiplexing of optics on board carries the chip package, further reduce the assembly degree of difficulty and the manufacturing cost of wavelength division multiplexing system.
Example 1
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, in a specific embodiment scheme, the utility model provides a CWDM optical device based on VCSEL, this CWDM optical device based on VCSEL includes diffraction light device 001, a plurality of filters 002 and a plurality of optical lens 003, wherein a plurality of filters 002 have different wavelengths respectively, diffraction light device 001 one end is built-in to have receiving port 004, a plurality of filters 002 set up in diffraction light device 001 and all with the collinear setting of receiving port 004, all be 45 contained angles between a plurality of filters 002 and its installation face 005, set up a plurality of through-holes 007 on the installation face 005 of a plurality of filters 002 and correspond with the position of a plurality of filters 002 respectively, a plurality of optical lens set up respectively in a plurality of through-holes 003.
Specifically, 6 filters 002 and 6 optical lenses 003 are provided, respectively.
Specifically, the lights passing through the 6 photo lenses 003 have different wavelengths, respectively, and the wavelength interval between the lights passing through the 6 photo lenses 003 is less than or equal to 25 nm.
Specifically, each of the 6 filters 002 is a low-pass filter.
Example 2
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, in a specific embodiment scheme, the utility model provides a CWDM optical device based on VCSEL, this CWDM optical device based on VCSEL includes diffraction light device 001, a plurality of filters 002 and a plurality of optical lens 003, wherein a plurality of filters 002 have different wavelengths respectively, diffraction light device 001 one end is built-in to have receiving port 004, a plurality of filters 002 set up in diffraction light device 001 and all with the collinear setting of receiving port 004, all be 45 contained angles between a plurality of filters 002 and its installation face 005, set up a plurality of through-holes 007 on the installation face 005 of a plurality of filters 002 and correspond with the position of a plurality of filters 002 respectively, a plurality of optical lens set up respectively in a plurality of through-holes 003.
Specifically, the receiving port 004 is any one of LC, FC, SC, and ST standard single fiber optical interfaces.
In this embodiment, the receiving port 004 adopts any one standard single fiber optical interface of LC, FC, SC, and ST, which can facilitate external optical path.
Example 3
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, in a specific embodiment scheme, the utility model provides a CWDM optical device based on VCSEL, this CWDM optical device based on VCSEL includes diffraction light device 001, a plurality of filters 002 and a plurality of optical lens 003, wherein a plurality of filters 002 have different wavelengths respectively, diffraction light device 001 one end is built-in to have receiving port 004, a plurality of filters 002 set up in diffraction light device 001 and all with the collinear setting of receiving port 004, all be 45 contained angles between a plurality of filters 002 and its installation face 005, set up a plurality of through-holes 007 on the installation face 005 of a plurality of filters 002 and correspond with the position of a plurality of filters 002 respectively, a plurality of optical lens set up respectively in a plurality of through-holes 003.
Specifically, a filter placement groove 006 is provided in the diffraction optical device 001, and the filter placement groove 006 is provided between the installation surfaces 005 of the plurality of filters 002 and the plurality of filters 002.
More specifically, an optical glue layer is formed between the plurality of filters 002 and the filter placement groove 006.
In this embodiment, filter standing groove 006 is used for placing a plurality of filters 002, and pastes together through optical glue between filter standing groove 006 and a plurality of filters 002, can make a plurality of filters 002 more firm.
Example 4
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, in a specific embodiment scheme, the utility model provides a CWDM optical device based on VCSEL, this CWDM optical device based on VCSEL includes diffraction light device 001, a plurality of filters 002 and a plurality of optical lens 003, wherein a plurality of filters 002 have different wavelengths respectively, diffraction light device 001 one end is built-in to have receiving port 004, a plurality of filters 002 set up in diffraction light device 001 and all with the collinear setting of receiving port 004, all be 45 contained angles between a plurality of filters 002 and its installation face 005, set up a plurality of through-holes 007 on the installation face 005 of a plurality of filters 002 and correspond with the position of a plurality of filters 002 respectively, a plurality of optical lens set up respectively in a plurality of through-holes 003.
Specifically, this CWDM optical device based on VCSEL still includes the VCSEL based on different wavelength of multichannel, and VCSEL sets up and keeps away from a plurality of filters 002 one side at a plurality of optical lens 003, and VCSEL sends out the light of different wavelength of multichannel and corresponds after a plurality of optical lens 003 collimation and shine on a plurality of filters 002.
In this embodiment, based on the different wavelength's of multichannel VCSEL be used for providing the light of a plurality of different wavelengths, the light of the different wavelength that VCSEL sent passes through the utility model provides a based on the CWDM optical device of VCSEL realizes coarse wavelength division multiplexing's synthesis.
To sum up, the utility model provides a pair of CWDM optical device based on VCSEL, its beneficial effect lies in: the light with different wavelengths is collimated by the optical lenses respectively, correspondingly irradiates the filter plates, and is reflected into parallel light by the filter plates and then reaches the receiving port to be converged into a beam of light. The utility model discloses set up a plurality of filters that have different wavelengths in diffraction light device, can realize the combination of optical system and COB technique and CWDM technique to realize the coarse wavelength division multiplexing of optics on board carries the chip package, further reduce the assembly degree of difficulty and the manufacturing cost of wavelength division multiplexing system. The receiving port adopts any one standard single-fiber optical interface of LC, FC, SC and ST, which can facilitate the external optical path. The filter standing groove is used for placing a plurality of filters, and pastes together through optical glue between filter standing groove and a plurality of filters, can be so that a plurality of filters are more firm. Based on the different wavelength's of multichannel VCSEL is used for providing the light of a plurality of different wavelengths, and the light of the different wavelength that VCSEL sent passes through the utility model provides a based on the synthesis that the CWDM optical device of VCSEL realized coarse wavelength division multiplexing.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (8)
1. A VCSEL-based CWDM optical device, comprising: diffraction optical device, a plurality of filter and a plurality of optical lens, it is a plurality of the filter has different wavelength respectively, diffraction optical device one end embeds there is the receiving port, and is a plurality of the filter sets up in diffraction optical device and all sets up with the receiving port collineation, and is a plurality of all be 45 contained angles between filter and the installation face, it is a plurality of seted up a plurality of through-holes on the installation face of filter and correspond with the position of a plurality of filters respectively, it is a plurality of optical lens sets up respectively in a plurality of through-holes.
2. The VCSEL-based CWDM optical device of claim 1, wherein: the filter and the optical lens are respectively provided with 6 filters.
3. The VCSEL-based CWDM optical device of claim 2, wherein: the light passing through the 6 optical lenses respectively has different wavelengths, and the wavelength interval between the light passing through the 6 optical lenses is less than or equal to 25 nm.
4. The VCSEL-based CWDM optical device of claim 2, wherein: 6 the filter plates are all low-pass filter plates.
5. The VCSEL-based CWDM optical device of claim 1, wherein: the receiving port is any one of LC, FC, SC and ST standard single-fiber optical interfaces.
6. The VCSEL-based CWDM optical device of claim 1, wherein: the diffraction light device is internally provided with a filter placing groove which is arranged between the installation surfaces of the plurality of filters and the plurality of filters.
7. The VCSEL-based CWDM optical device of claim 6, wherein: a plurality of optical glue layers are formed between the filter plates and the filter plate placing grooves.
8. The VCSEL-based CWDM optical device of claim 1, further comprising: based on the VCSELs of multichannel different wavelength, VCSEL sets up and keeps away from a plurality of filter plates one side at a plurality of optical lens, and VCSELs send out the light of multichannel different wavelength and correspond after a plurality of optical lens collimation and shine on a plurality of filter plates respectively.
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| CN201921814644.9U CN210572868U (en) | 2019-10-25 | 2019-10-25 | VCSEL-based CWDM optical device |
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| CN201921814644.9U CN210572868U (en) | 2019-10-25 | 2019-10-25 | VCSEL-based CWDM optical device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646893A (en) * | 2019-10-25 | 2020-01-03 | 深圳市埃尔法光电科技有限公司 | VCSEL-based CWDM optical device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646893A (en) * | 2019-10-25 | 2020-01-03 | 深圳市埃尔法光电科技有限公司 | VCSEL-based CWDM optical device |
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