CN112180522A - Light path structure of light emitting device - Google Patents
Light path structure of light emitting device Download PDFInfo
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- CN112180522A CN112180522A CN202011231341.1A CN202011231341A CN112180522A CN 112180522 A CN112180522 A CN 112180522A CN 202011231341 A CN202011231341 A CN 202011231341A CN 112180522 A CN112180522 A CN 112180522A
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- light path
- light
- propagation direction
- base plate
- emitting device
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4215—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
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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
Abstract
The invention discloses a light path structure of a light emitting device, and particularly relates to the technical field of light paths. This light path structure, effect through laser instrument chip and collimating lens, can form collimated light, and form first direction of propagation, and the effect through refraction prism, can pass through the light path of first direction of propagation after twice refraction, be on a parallel with first direction of propagation and the same or opposite light path of direction and propagate, form the second direction of propagation, recycle optics multiplexer and conduct, and then make and leave certain space between first direction of propagation and the second direction of propagation, be convenient for utilize this space to place more optics, electrical components, thereby be convenient for carry out mass production, better commercial using value has.
Description
Technical Field
The present invention relates to the field of optical path technology, and more particularly, to an optical path structure of a light emitting device.
Background
With the rapid development of cloud computing and enterprise data centers, the demand on high-speed optical devices and optical modules of 100G, 200G, 400G and the like is gradually increased, the optical devices are divided into active devices and passive devices, the active devices are optoelectronic devices which need additional energy to drive and work in an optical communication system and can convert electrical signals into optical signals or optical signals into electrical signals, the optoelectronic devices are hearts of an optical transmission system, more and higher-speed optical devices and circuits are integrated in the optical modules in a limited size space, and the optoelectronic devices and circuits are easy to produce in large batches and are the problems which need to be solved preferentially in current high-speed optical module large-scale planning commercial application.
Disclosure of Invention
In order to overcome the above-mentioned defects of the prior art, the present invention provides a light path structure of a light emitting device, and the technical problems to be solved by the present invention are: the existing optical path structure does not facilitate the integration of more and higher-rate optical devices and circuits in an optical module of a limited size space, and it is also not easy to mass-produce the problem of application in commerce.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an optical path structure of transmitting optical device, includes printed circuit board, printed circuit board's front is provided with the base plate, the front of base plate is provided with a plurality of laser instrument chip, and the back of laser instrument chip and the positive fixed connection of base plate, the base plate openly is provided with a plurality of collimating lens, collimating lens is located the right side of laser instrument chip, the front of base plate is provided with refraction prism, the front of base plate is provided with optical multiplexer, optical multiplexer's one end is provided with the tail optical fiber subassembly.
As a further scheme of the invention: the collimating lenses correspond to the laser chips one by one, and the laser chips are arranged on the front focuses of the collimating lenses.
As a further scheme of the invention: the light emitted by the laser chip forms collimated light through the collimating lens, and the light path of the collimated light is in a first propagation direction.
As a further scheme of the invention: the refraction prism enables the light path in the first propagation direction to be parallel to the light path in the first propagation direction and in the same direction after being refracted for the second time, a second propagation direction is formed, the light path enters the optical multiplexer, and the light path in the first propagation direction and the light path in the second propagation direction are in the same direction and are parallel to each other.
As a further scheme of the invention: the optical multiplexer comprises a glass carrier and a plurality of band-pass filters, the glass carrier is provided with a first working surface and a second working surface which are oppositely and obliquely arranged, the band-pass filters are fixed on the first working surface side by side and correspond to the collimating lenses one by one, the second working surface is provided with a full-reflection film area and a transmission light-passing opening area, and the light-passing opening area corresponds to one band-pass filter in the filter component.
As a further scheme of the invention: the collimated light enters the optical multiplexer and is gathered together to be transmitted through the pigtail assembly.
The invention has the beneficial effects that:
the invention can form collimated light and form a first transmission direction through the action of the laser chip and the collimating lens, can transmit a light path in the first transmission direction parallel to the first transmission direction and in the same direction or in the opposite direction after being refracted twice through the action of the refraction prism to form a second transmission direction, and then transmits the light path by using the optical multiplexer, so that a certain space is reserved between the first transmission direction and the second transmission direction, and more optical and electrical components can be placed by using the space, thereby facilitating mass production and having better commercial application value.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic bottom view of FIG. 1;
FIG. 3 is a schematic diagram of the rear arrangement of a refractive prism in the apparatus of the present invention;
FIG. 4 is a schematic bottom view of FIG. 3;
FIG. 5 is a schematic diagram of the structure of the device of the present invention with the opposite direction of the light path;
FIG. 6 is a schematic bottom view of FIG. 5;
FIG. 7 is a schematic diagram of a structure of a refractive prism in a device according to the present invention with a rear light path in the opposite direction;
FIG. 8 is a schematic bottom view of FIG. 7;
in the figure: the optical fiber laser comprises a printed circuit board 1, a substrate 2, a laser chip 3, a collimating lens 4, a refraction prism 5, an optical multiplexer 6 and a pigtail 7.
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.
Example 1
As shown in fig. 1 and 2, the present invention provides a light path structure of a light emitting device: including printed circuit board 1, printed circuit board 1's front is provided with base plate 2, base plate 2's front is provided with a plurality of laser instrument chip 3, and laser instrument chip 3's the back and base plate 2's front fixed connection, base plate 2 openly is provided with a plurality of collimating lens 4, collimating lens 4 is located laser instrument chip 3's right side, base plate 2's front is provided with refraction prism 5, base plate 2's front is provided with optical multiplexer 6, optical multiplexer 6's one end is provided with tail optical fiber subassembly 7.
The refraction prism 5 refracts the light path in the first propagation direction for 2 times, then propagates the light path in parallel with the first propagation direction and in the same direction to form a second propagation direction, and then enters the optical multiplexer 6, wherein the light path in the first propagation direction is the same as the light path in the second propagation direction, and the light path in the first propagation direction and the light path in the second propagation direction are parallel to each other.
As shown in fig. 5 and 6, the refraction prism 5 refracts the optical path in the first propagation direction 2 times, then propagates the optical path in the same direction parallel to the first propagation direction to form a second propagation direction, and then enters the optical multiplexer 6, where the optical paths in the first propagation direction and the second propagation direction have opposite propagation directions and are parallel to each other.
According to the invention, through the action of the refraction prism, the light path in the first propagation direction can be refracted twice and then propagated in parallel with the light path in the first propagation direction in the same direction or in the opposite direction to form the second propagation direction, and then the light path is conducted by using the optical multiplexer, so that a certain space is left between the first propagation direction and the second propagation direction, and more optical and electrical components can be conveniently placed by using the space.
Example 2
As shown in fig. 3 and 4, the present invention provides a light path structure of a light emitting device: including printed circuit board 1, printed circuit board 1's front is provided with base plate 2, base plate 2's front is provided with a plurality of laser instrument chip 3, and laser instrument chip 3's the back and base plate 2's front fixed connection, base plate 2 openly is provided with a plurality of collimating lens 4, collimating lens 4 is located laser instrument chip 3's right side, base plate 2's front is provided with refraction prism 5, and refraction prism 5's one end runs through base plate 2, base plate 2's the back is provided with optical multiplexer 6, optical multiplexer 6's one end is provided with tail optical fiber subassembly 7.
In contrast to fig. 1 and 2, the first propagation direction of the optical path forms a second propagation direction of the optical path on its other side by passing through the substrate 2.
As shown in fig. 7 and 8, the present invention provides a light path structure of a light emitting device: including printed circuit board 1, printed circuit board 1's front is provided with base plate 2, base plate 2's front is provided with a plurality of laser instrument chip 3, and laser instrument chip 3's the back and base plate 2's front fixed connection, base plate 2 openly is provided with a plurality of collimating lens 4, collimating lens 4 is located laser instrument chip 3's right side, base plate 2's front is provided with refraction prism 5, and refraction prism 5's one end runs through base plate 2, base plate 2's the back is provided with optical multiplexer 6, optical multiplexer 6's one end is provided with tail optical fiber subassembly 7.
In contrast to fig. 5 and 6, the first propagation direction of the optical path forms a second propagation direction of the optical path on its other side by passing through the substrate 2.
As can be seen from the above, compared with embodiment 1, the first propagation direction of the optical path forms the second propagation direction of the optical path on the other side by passing through the substrate 2, so that a larger space is left on the substrate 2 and between the first propagation direction and the second propagation direction, which is more optimized and improved based on embodiment 1.
As shown in fig. 1 to 8, the present invention provides a light path structure of a light emitting device: the optical path transmission device comprises a printed circuit board 1, a substrate 2 is arranged on the front surface of the printed circuit board 1, a plurality of laser chips 3 are arranged on the front surface of the substrate 2, the back surfaces of the laser chips 3 are fixedly connected with the front surface of the substrate 2, light emitted by the laser chips 3 passes through a collimating lens 4 to form collimated light, the collimated light path is in a first transmission direction, a refraction prism 5 refracts the light path in the first transmission direction for 2 times, the light path which is parallel to the first transmission direction and has the same direction propagates to form a second transmission direction, the light path enters an optical multiplexer 6, the light path in the first transmission direction and the light path in the second transmission direction have the same propagation direction and are parallel to each other, the light path in the first transmission direction can be refracted twice and propagate in the light path which is parallel to the first transmission direction and has the same or opposite direction to form the second transmission direction under the action of the refraction prism 5, then, conducting by using an optical multiplexer, so that a certain space is left between the first propagation direction and the second propagation direction, the front surface of the substrate 2 is provided with a plurality of collimating lenses 4, the collimating lenses 4 are positioned at the right side of the laser chip 3, the collimating lenses 4 correspond to the laser chips 3 one by one, the laser chips 3 are arranged on the front focuses of the collimating lenses, collimated light can be formed through the action of the laser chips 3 and the collimating lenses 4, the light path is stable and convenient to conduct, the front surface of the substrate 2 is provided with a refraction prism 5, the front surface of the substrate 2 is provided with the optical multiplexer 6, the optical multiplexer 6 comprises a glass carrier and a plurality of band-pass filters, the glass carrier is provided with a first working surface and a second working surface which are arranged in an inclined manner, the band-pass filters are fixed on the first working surface side by side, and the band-pass filters correspond to the collimating lenses one by one, the second working surface is provided with a total reflection film area and a transmission light-passing opening area, the light-passing opening area corresponds to one band-pass filter in the filter component, one end of the optical multiplexer 6 is provided with a tail fiber component 7, and collimated light enters the optical multiplexer 6 and then is gathered together to be transmitted through the tail fiber component 7.
The working principle of the invention is as follows: when the optical fiber transmission device is used, light rays are emitted by the laser chip 3 and pass through the collimating lens 4, collimated light is formed, a first propagation direction is formed, then the light path in the first propagation direction is refracted for 2 times by the refraction prism 5, the light path is propagated in parallel with the first propagation direction and in the same direction, a second propagation direction is formed, then the light path enters the optical multiplexer 6, and finally the collimated light enters the optical multiplexer 6 and then is converged together to be transmitted through the tail optical fiber assembly 7.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. An optical path structure of a light emitting device, comprising a printed circuit board (1), characterized in that: the front of printed circuit board (1) is provided with base plate (2), the front of base plate (2) is provided with a plurality of laser instrument chip (3), and the back of laser instrument chip (3) and the positive fixed connection of base plate (2), base plate (2) openly is provided with a plurality of collimating lens (4), collimating lens (4) are located the right side of laser instrument chip (3), the front of base plate (2) is provided with refraction prism (5), the front of base plate (2) is provided with optical multiplexer (6), the one end of optical multiplexer (6) is provided with tail optical fiber subassembly (7).
2. A light path structure of a light emitting device according to claim 1, characterized in that: the collimating lenses (4) correspond to the laser chips (3) one by one, and the laser chips (3) are arranged on the front focuses of the collimating lenses.
3. A light path structure of a light emitting device according to claim 1, characterized in that: the light emitted by the laser chip (3) forms collimated light through the collimating lens (4), and the light path of the collimated light is in a first transmission direction.
4. A light path structure of a light emitting device according to claim 1, characterized in that: the refraction prism (5) refracts the light path in the first propagation direction for 2 times, then the light path which is parallel to the first propagation direction and has the same direction propagates to form a second propagation direction, and then the light path enters the optical multiplexer (6), and the light path in the first propagation direction and the light path in the second propagation direction have the same propagation direction and are parallel to each other.
5. A light path structure of a light emitting device according to claim 1, characterized in that: the optical multiplexer (6) comprises a glass carrier and a plurality of band-pass filters, the glass carrier is provided with a first working surface and a second working surface which are oppositely and obliquely arranged, the band-pass filters are fixed on the first working surface side by side and correspond to the collimating lenses one by one, the second working surface is provided with a total reflection film area and a transmission light-passing opening area, and the light-passing opening area corresponds to one band-pass filter in the filter component.
6. A light path structure of a light emitting device according to claim 3, characterized in that: the collimated light enters the optical multiplexer (6) and then is gathered together to be transmitted through the pigtail assembly (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011231341.1A CN112180522A (en) | 2020-11-06 | 2020-11-06 | Light path structure of light emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011231341.1A CN112180522A (en) | 2020-11-06 | 2020-11-06 | Light path structure of light emitting device |
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| Publication Number | Publication Date |
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| CN112180522A true CN112180522A (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011231341.1A Pending CN112180522A (en) | 2020-11-06 | 2020-11-06 | Light path structure of light emitting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115728879A (en) * | 2021-08-31 | 2023-03-03 | 青岛海信宽带多媒体技术有限公司 | Optical module |
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2020
- 2020-11-06 CN CN202011231341.1A patent/CN112180522A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115728879A (en) * | 2021-08-31 | 2023-03-03 | 青岛海信宽带多媒体技术有限公司 | Optical module |
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