CN217404577U - Optical filter side-entering type single-fiber four-way optical device - Google Patents
Optical filter side-entering type single-fiber four-way optical device Download PDFInfo
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- CN217404577U CN217404577U CN202221355833.6U CN202221355833U CN217404577U CN 217404577 U CN217404577 U CN 217404577U CN 202221355833 U CN202221355833 U CN 202221355833U CN 217404577 U CN217404577 U CN 217404577U
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Abstract
The utility model discloses an optical filter side-entering single-fiber four-way optical device, which comprises a base and a first optical filtering component, wherein the base is of a hollow structure, the hollow structure forms an accommodating cavity, a side opening communicated with the accommodating cavity is arranged on the side surface of the base, and the first optical filtering component can enter the accommodating cavity along the side opening so as to be installed in the accommodating cavity; the utility model discloses a cavity is acceptd in the hollow structure formation of base, and the chamber is acceptd to the side opening intercommunication that utilizes the side of base to set up, and during the equipment single fiber quadriversal optical device, first optical filtering subassembly can follow the side opening and get into and accept the chamber to the direct mount need not to carry out equipment many times in acceping the intracavity, and the work piece is liable to change, and the light path precision improves greatly, and the equipment can be unusual can save part subassembly change in the device, avoids the material extravagant.
Description
Technical Field
The utility model relates to an optical fiber communication technology field especially relates to a light filter side income formula single fiber quadriversal optical device.
Background
The single-fiber four-way optical device separates laser signals with four different wavelengths inside The device by using a Wavelength Division Multiplexing (WDM), along with The increasing popularization of The application of optical fiber networks, The fiber To The home (ftth) project and point-To-point data transmission of fiber access worldwide are being implemented gradually, and The market demand for The single-fiber four-way optical device is also increasing in order To reasonably utilize The laid fiber resources.
However, the optical path and circuit design of the single-fiber four-way optical device in the prior art are complex, and when the optical filter is installed, the optical filter is often installed on the optical filter carrier first, then the optical filter carrier is installed in the base in an interference fit assembly mode, and then other parts of the component base are adhered to the component base through glue. Therefore, the single-fiber four-way optical device of the prior art has the following two problems:
firstly, multiple assembling is needed, and the precision of a single-fiber four-way optical device is greatly influenced by uncertainty errors caused by the multiple assembling, so that an optical path cannot be realized easily.
And secondly, the size of the optical device is small (millimeter level), the optical device is separated into a plurality of assemblies, the weakest position of the size of each assembly is only about 0.2mm, and the assembly simultaneously comprises special-shaped structures such as inclined planes, and is easily deformed by external force in the processes of processing, transportation, production and assembly, so that the existence of uncontrollable errors before assembly is introduced, and the assembly process of the assemblies is complex and high in processing cost.
Thirdly, the assembly process is complicated, once the assembly is wrong, the single-fiber four-way optical device cannot be used continuously, the production efficiency is low, the material waste is serious, and the development of the single-fiber four-way optical device is seriously restricted.
Therefore, a filter-side single-fiber four-way optical device is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a formula single fiber quadriversal optical device is gone into to light filter side solves single fiber quadriversal optical device and assembles the process loaded down with trivial details, the low grade technical problem of precision.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a light filter side income formula single fiber quadriversal optical device, it includes base and first optical filtering component, the base is hollow structure, hollow structure forms accepts the chamber, the intercommunication has been seted up to the side of base accept the side opening in chamber, first optical filtering component can be followed the side opening gets into accept the chamber, in order to install accept the intracavity.
Optionally, the base is equipped with the light mouth along the first end of horizontal direction, the base is equipped with first receiving port along the first side of perpendicular to horizontal direction, the base is equipped with the light passageway, first optical filter subassembly includes second light filter and third light filter, and first light beam jets into the light mouth, and follows the light passageway passes through in proper order the reflection of third light filter with arrive behind the reflection of second light filter first receiving port.
Optionally, the optical filter side-entry single-fiber four-way optical device further includes an input/output device and a first receiver, the input/output device is installed at the optical port and is configured to emit the first light beam, the first receiver is installed at the first receiving port and is configured to receive the first light beam, the first optical filter assembly further includes a first optical filter, and the first light beam reaches the first receiving port after passing through the first optical filter.
Optionally, the first optical filter is at an angle of 0 degree with the horizontal direction, the second optical filter faces towards the angle between the light port and the horizontal direction of 30 degrees and 35 degrees, and the third optical filter faces towards the angle between the first receiving port and the vertical direction of 10 degrees and 15 degrees.
Optionally, the first filter assembly further includes a fourth filter, the base is provided with a second receiving port along a second side perpendicular to the horizontal direction, the input/output device further emits a second light beam, the second light beam enters the light port, and the light channel sequentially passes through the reflection of the third filter and the reflection of the fourth filter and then reaches the second receiving port.
Optionally, the optical filter lateral single-fiber four-way optical device further includes a second receiver and a second optical filter assembly, the second receiver is installed at the second receiving port and used for receiving the second light beam, the second optical filter assembly includes a fifth optical filter, the second light beam passes through the fifth optical filter and then reaches the second receiving port, the fourth optical filter faces the first receiving port and is at a 45-degree included angle with the horizontal direction, and the fifth optical filter is at a 0-degree included angle with the horizontal direction.
Optionally, the optical filter side-entry single-fiber four-way optical device further includes a first emitter, the second optical filter assembly further includes a sixth optical filter, a second end of the base along the horizontal direction is provided with a first emission port, the first emitter is installed at the first emission port and used for emitting a third light beam, the third light beam is emitted into the first emission port and sequentially passes through the transmission of the sixth optical filter, the transmission of the fourth optical filter and the transmission of the third optical filter and then reaches the light port, so that the input/output device receives the third light beam, and the sixth optical filter faces the second receiving port and forms a 45-degree included angle with the horizontal direction.
Optionally, the optical filter side entry type single-fiber four-way optical device further includes a second emitter, a second side of the base in the direction perpendicular to the horizontal direction is further provided with a second emission port, the second emitter is installed in the second emission port and used for emitting a fourth light beam, the fourth light beam enters the second emission port and reaches the light port along the light channel after sequentially passing through the reflection of the sixth optical filter, the transmission of the fourth optical filter and the transmission of the third optical filter, so that the input/output device receives the fourth light beam.
Optionally, an isolator is further disposed between the fourth optical filter and the sixth optical filter, and the isolator is used for preventing light from turning back.
Optionally, the optical filter side-entering single-fiber four-way optical device further includes a first collimating lens and a second collimating lens, the first collimating lens is installed at the optical port, and the base is integrally formed, the second collimating lens is installed between the isolator and the first emitting port, the first collimating lens and the second collimating lens are arranged oppositely along the horizontal direction, and the first collimating lens and the second collimating lens are respectively used for converging light beams passing through the first collimating lens and the second collimating lens to form horizontal light beams.
Compared with the prior art, the beneficial effects of the utility model are that:
base integrated into one piece, hollow structure through the base forms accepts the chamber, the chamber is accepted to the side opening intercommunication that utilizes the side of base to set up, during the equipment single fiber quadriversal optical device, first optical filtering component can follow the side opening and get into and accept the chamber, and the direct mount is in acceping the intracavity, need not to carry out equipment many times, the work piece is liable to be changed, compared with the prior art, installation procedure has reduced 8, the light path precision improves greatly, and can save through changing device middle part sub-assembly when the equipment is unusual, avoid the material extravagant.
Drawings
Fig. 1 is a schematic structural diagram of an optical filter side-entry single-fiber four-way optical device according to the present invention;
fig. 2 is a cross-sectional view of the optical filter side-entry single-fiber four-way optical device provided in the present invention;
fig. 3 is another view of the filter-side input type single-fiber four-way optical device according to the present invention.
Illustration of the drawings:
the optical filter module comprises a base 1, an accommodating cavity 2, a first optical filter 21, a second optical filter 22, a third optical filter 23, a fourth optical filter 24, a fifth optical filter 25, an isolator 26, a second collimating lens 27, an input-output device 3, a first receiver 4, a second receiver 5, a first emitter 6, a second emitter 7, a sixth optical filter 8, an adjusting ring 9, a first collimating lens 10 and an optical channel 11.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Referring to fig. 1 and fig. 2, the optical filter side-entry type single-fiber four-way optical device of the present embodiment specifically includes a base 1 and a first optical filter assembly, where the base 1 is a hollow structure, the hollow structure forms an accommodating cavity 2, a side opening communicating with the accommodating cavity 2 is formed on a side surface of the base 1, and the first optical filter assembly can enter the accommodating cavity 2 along the side opening, so that an operator can install the first optical filter assembly in the accommodating cavity 2.
It should be noted that, the side of the base 1 is provided with a side opening, the side opening is communicated with the receiving cavity 2 of the base 1 and is provided with a matching side plate (not shown) outside, the side plate matched with the side opening is opened, the first light filtering component can enter the receiving cavity 2 along the side opening and is installed in the receiving cavity 2, which not only avoids that different light filters need to be installed in the appointed position of the base 1 through different openings of the base 1 in the traditional method, but also effectively avoids the multiple assembling of light paths, thereby reducing the light path error, compared with the prior art, the optical filter mounting procedure adopting the embodiment can reduce 8 procedures compared with the traditional method, has small tolerance, greatly improves the production efficiency and the product straight-through rate, and the traditional structure only meets the requirement that the triangle Pf is less than 1.5dB under the batch 500H, and the structure of the embodiment can ensure that the standard is met under 1000H, so that the requirement of a customer on reliability can be met under the working temperature (industrial-grade temperature).
Specifically, referring to fig. 1 and 3, the optical filter side-entry single-fiber four-way optical device further includes a second optical filter assembly, a first end of the base 1 along the horizontal direction is further provided with an optical port, a first collimating lens 10, an input/output device 3 and an optical channel 11, a first receiving port and a first receiver 4 are further provided on the first side of the base 1 along the direction perpendicular to the horizontal direction, a second receiving port and a second receiver 5 are further provided on the second side of the base 1 along the direction perpendicular to the horizontal direction, the first optical filter assembly includes a first optical filter 21, a second optical filter 22, a third optical filter 23 and a fourth optical filter 24, and the second optical filter assembly includes a fifth optical filter 25.
Wherein, in the utility model, the first end of the base 1 along the horizontal direction is the left end of the base 1, the first side of the base 1 along the direction perpendicular to the horizontal direction is the upper surface of the base 1, the second side of the base 1 along the direction perpendicular to the horizontal direction is the lower surface of the base 1, the first receiving port is at the upper left of the base 1, the second receiving port is at the lower left of the base 1, the first optical filter 21 forms a 0-degree included angle with the horizontal direction, the included angle degree of the second optical filter 22 towards the optical port and the horizontal direction is between 30 degrees and 35 degrees, the included angle degree of the third optical filter 23 towards the first receiving port and the vertical direction is between 10 degrees and 15 degrees, the fourth optical filter 24 towards the first receiving port and the horizontal direction forms a 45-degree included angle, the fifth optical filter 25 forms a 0-degree included angle with the horizontal direction, the first receiver 4 is installed on the first receiving port, the second receiver 5 is installed on the second receiving port, the input/output device 3 can emit a first light beam and a second light beam, the first light beam forms a horizontal light beam through the first collimating lens 10 and enters the light port, and passes through the first optical filter 21 to reach the first receiving port along the light channel 11 after sequentially passing through the reflection of the third optical filter 23 and the reflection of the second optical filter 22, and is received by the first receiver 4, and the second light beam forms a horizontal light beam through the first collimating lens 10 and enters the light port, passes through the light channel 11 sequentially and sequentially passes through the reflection of the third optical filter 23 and the reflection of the fourth optical filter 24, and passes through the fifth optical filter 25 to reach the second receiving port to be received by the second receiver 5.
It should be noted that the optimum angle degree between the second optical filter 22 and the horizontal direction of this embodiment is 32 degrees, the optimum angle degree between the third optical filter 23 and the vertical direction is 13 degrees, and the tolerance of the included angle of the third optical filter 23 is only 0.5 degree, and the first light beam and the second light beam are light beams with different wavelengths emitted by the input/output device 3, and of course, in other embodiments, the first light beam and the second light beam can also be light beams with different paths formed by the same light beam emitted by the input/output device 3 after passing through the optical filters in different combinations, which is not described herein again.
Specifically, the second filter assembly further includes a sixth filter 8, the second end of the base 1 along the horizontal direction is further provided with a first emitting port and a first emitter 6, the first side of the base 1 along the direction perpendicular to the horizontal direction is further provided with a second emitting port and a second emitter 7, and a second collimating lens 27 and an isolator 26 for preventing light from turning back are further arranged between the fourth filter 24 and the sixth filter 8.
Wherein, the utility model discloses well sixth light filter 8 is 45 degrees contained angles towards second receiving port and horizontal direction, base 1 is the base 1 right-hand member along the second end of horizontal direction, the transmission port is located the upper right side of base 1, first launcher 6 can launch the third light beam, the third light beam assembles through second collimating lens 27 and forms horizontal light beam and jets into isolator 26 after the transmission of sixth light filter 8 along light channel 11, reach the light port after the transmission of fourth light filter 24 and the transmission of third light filter 23 in proper order again, for input exporter 3 receives the third light beam; the second emitter 7 can emit a fourth light beam, and the fourth light beam is reflected by the sixth optical filter 8 along the optical channel 11, then converged by the second collimating lens 27 to form a horizontal light beam, and enters the isolator 26, and then sequentially passes through the transmission of the fourth optical filter 24 and the transmission of the third optical filter 23, and reaches the optical port, so that the input/output device 3 receives the fourth light beam.
The utility model discloses a theory of operation does: the base 1 is provided with a containing cavity 2, the side surface of the base 1 is provided with a side opening communicated with the containing cavity 2, when a first light filtering component is installed, a side plate matched with the side opening can be opened to enter the containing cavity 2 and be fixed on the containing cavity 2, then other passive optical components, optical element couplers and the like are assembled, repeated assembly is not needed, the tolerance is small, after complete assembly is carried out, two light beams emitted by the input and output device 3 are converged by a first collimating lens 10, then are emitted along different paths to be received by a first receiver 4 and a second receiver 5 along an optical channel 11 and sequentially pass through the transmission or reflection action of optical filters arranged at different angles, two light beams with different wavelengths emitted by a first emitter 6 and a second emitter 7 are received by the input and output device 3 along an optical port under the transmission and reflection action of the second collimating lens 27 and the optical filters arranged at different angles, four different wavelength beams are transmitted in the same device.
In order to simplify the assembly process, preferably, during assembly, the side opening is turned forward, the second optical filter 22, the third optical filter 23 and the fourth optical filter 24 are placed into the receiving cavity 2 from the side opening, the sixth optical filter 8 is placed into the second emitting opening, the optical filters are fixed in a dispensing and curing manner, after the second optical filter 22, the third optical filter 23, the fourth optical filter 24 and the sixth optical filter 8 are fixed, the base 1 is turned over so that the side of the second emitting opening faces upward, the optical filters enter the receiving cavity 2 from the side opening and are loaded with the first optical filter 21, the fifth optical filter 25 is loaded into the second receiving opening, the first optical filter 21 and the fifth optical filter 25 are dispensed and cured, after the curing is completed, other passive optical components including the isolator 26, the second collimating lens 27 and the collimating lens carrier are assembled, the isolator 26 is fixed on the bottom surface of the receiving cavity 2 by dispensing and curing, the second collimating lens 27 is mounted on the collimating lens carrier and fixed on the inner wall of the accommodating cavity 2 by means of glue dispensing and the like, finally the first receiver 4 and the second receiver 5 are glued and attached to the base 1 by means of glue dispensing, the first emitter 6 and the second emitter 7 are laser-welded on the base 1, and the input/output device 3 is mounted on the light port through the first adjusting ring 9. Of course, for realizing good fixed effect in practical application, also can carry out various optimal design to light filter and other subassembly fixed modes, the embodiment of the utility model provides a do not do specifically to this to because the equipment order can carry out multiple transform, consequently the utility model discloses do not do specifically to the fixed order of light filter and do not restrict yet.
Further, it is higher for the optical filter side income formula single fiber quadriversal optical device universality, the utility model discloses first transmitter 6 and second transmitter 7 adopt the design of TO56 general specification, the utility model discloses can use in Combo PON OLT optical device, do and be applied TO Combo PON ONU optical device, in Combo PON ONU optical device, the wavelength that corresponds receipt and transmitting terminal is according TO the specification change.
With reference to fig. 1-3, the utility model discloses a cavity 2 is acceptd in the hollow structure formation of base 1, and the side opening intercommunication that utilizes the side of base 1 to set up accepts cavity 2, and during the equipment single fiber quadriversal optical device, first optical filtering subassembly can be opened the curb plate and follow the side opening entering and accept cavity 2, need not to carry out equipment many times, and the work piece is easily changed, compares with prior art, and installation procedure has reduced 8, and the light path precision improves greatly to can save the partial subassembly change in the device when the equipment is unusual, avoid the material extravagant.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An optical filter side-entering type single-fiber four-way optical device is characterized in that: including base and first optical filtering component, the base is hollow structure, hollow structure forms accepts the chamber, the intercommunication has been seted up to the side of base accept the side opening in chamber, first optical filtering component can be followed the side opening gets into accept the chamber, in order to install accept the intracavity.
2. The filter-side-entry single-fiber four-way optical device according to claim 1, wherein: the base is equipped with the light mouth along the first end of horizontal direction, the base is equipped with first receiving port along the first side of perpendicular to horizontal direction, the base is equipped with the light passageway, first optical filter subassembly includes second light filter and third light filter, and first light beam jets into the light mouth, and follows the light passageway passes through in proper order the reflection of third light filter with arrive behind the reflection of second light filter first receiving port.
3. The filter-side single-fiber four-way optical device according to claim 2, wherein: the first filter assembly further comprises a first filter, and the first light beam reaches the first receiving port after passing through the first filter.
4. The filter-side single-fiber four-way optical device according to claim 3, wherein: the first optical filter is at an included angle of 0 degree with the horizontal direction, the second optical filter faces towards the included angle degree between the optical port and the horizontal direction and between 30 degrees and 35 degrees, and the third optical filter faces towards the included angle degree between the first receiving port and the vertical direction and between 10 degrees and 15 degrees.
5. The filter-side single-fiber four-way optical device according to claim 3, wherein: the first filtering component further comprises a fourth optical filter, a second receiving port is formed in the second side, perpendicular to the horizontal direction, of the base, the input and output device further emits a second light beam, the second light beam enters the optical port, and the optical channel sequentially passes through the reflection of the third optical filter and the reflection of the fourth optical filter and then reaches the second receiving port.
6. The filter-side single-fiber four-way optical device according to claim 5, wherein: still include second receiver and second filter assembly, the second receiver is installed the second receiving port is used for receiving the second light beam, second filter assembly includes the fifth light filter, the second light beam passes reach the second receiving port behind the fifth light filter, the fourth light filter orientation first receiving port is 45 degrees contained angles with the horizontal direction, the fifth light filter is 0 degrees contained angle with the horizontal direction.
7. The filter-side single-fiber four-way optical device according to claim 6, wherein: the second filter assembly further comprises a sixth filter, a first emitting port is formed in the second end of the base in the horizontal direction, the first emitting device is installed at the first emitting port and used for emitting a third light beam, the third light beam enters the first emitting port and sequentially passes through the transmission of the sixth filter, the transmission of the fourth filter and the transmission of the third filter and then reaches the light port, the input and output device receives the third light beam, and the sixth filter faces the second receiving port and forms a 45-degree included angle with the horizontal direction.
8. The filter-side single-fiber four-way optical device according to claim 7, wherein: the base is further provided with a second emitting port along a second side perpendicular to the horizontal direction, the second emitting port is mounted on the second emitting port and used for emitting a fourth light beam, the fourth light beam enters the second emitting port and arrives at the light port along the light channel after sequentially passing through the reflection of the sixth light filter, the transmission of the fourth light filter and the transmission of the third light filter, so that the input and output device can receive the fourth light beam.
9. The filter-side single-fiber four-way optical device according to claim 8, wherein: an isolator is further arranged between the fourth optical filter and the sixth optical filter and used for preventing light from turning back.
10. The filter-side single-fiber four-way optical device according to claim 9, wherein: still include first collimating lens and second collimating lens, first collimating lens is installed the light mouth, with base integrated into one piece, second collimating lens is installed the isolator with between the first transmission mouth, first collimating lens with second collimating lens is relative setting along the horizontal direction, first collimating lens and second collimating lens are used for converging the light beam that will pass its self respectively and form the horizontal light beam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221355833.6U CN217404577U (en) | 2022-06-01 | 2022-06-01 | Optical filter side-entering type single-fiber four-way optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221355833.6U CN217404577U (en) | 2022-06-01 | 2022-06-01 | Optical filter side-entering type single-fiber four-way optical device |
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| Publication Number | Publication Date |
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| CN217404577U true CN217404577U (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221355833.6U Active CN217404577U (en) | 2022-06-01 | 2022-06-01 | Optical filter side-entering type single-fiber four-way optical device |
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| CN (1) | CN217404577U (en) |
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- 2022-06-01 CN CN202221355833.6U patent/CN217404577U/en active Active
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