CN213633910U - Wavelength division multiplexer - Google Patents
Wavelength division multiplexer Download PDFInfo
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- CN213633910U CN213633910U CN202023164488.1U CN202023164488U CN213633910U CN 213633910 U CN213633910 U CN 213633910U CN 202023164488 U CN202023164488 U CN 202023164488U CN 213633910 U CN213633910 U CN 213633910U
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- wavelength division
- calibration
- division multiplexer
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Abstract
The application relates to a wavelength division multiplexer, including the two core tail fibers that set gradually, self-focusing lens, spherical lens and single core collimator, it is fixed to bond between two core tail fibers and the self-focusing lens, spherical lens and single core collimator bond fixedly, be provided with the glass cover between self-focusing lens and the spherical lens, self-focusing lens and spherical lens all insert and establish in the glass cover and bond fixedly with the glass cover. The application has the effect of saving materials.
Description
Technical Field
The present application relates to the field of communication components, and more particularly, to a wavelength division multiplexer.
Background
The wavelength division multiplexer combines a series of optical signals which carry information and have different wavelengths into one beam and transmits the beam along a single optical fiber; and at the receiving end, the communication element separates the optical signals with different wavelengths by a certain method.
As shown in fig. 1, the current wavelength division multiplexer includes a twin-core pigtail 1, a self-focusing lens 2, a spherical lens 3 and a single-core collimator 4 which are sequentially arranged, a small glass tube 7 is sleeved on the outer wall of the twin-core pigtail 1, then a large glass tube 8 is sleeved outside the whole small glass tube 7, the self-focusing lens 2, the spherical lens 3 and the single-core collimator 4, and then the whole small glass tube, the self-focusing lens 2, the spherical lens 3 and the single-core collimator 4 are fixed by gluing.
In view of the above-mentioned related art, the inventors have considered that when the wavelength division multiplexer is integrally fixed, two glass tubes of a large size and a small size are required, thereby causing a drawback of material waste.
SUMMERY OF THE UTILITY MODEL
In order to save material, the present application provides a wavelength division multiplexer.
The application provides a wavelength division multiplexer adopts following technical scheme:
the utility model provides a wavelength division multiplexer, is including the double-core tail fiber, self-focusing lens, spherical lens and the single core collimator that set gradually, it is fixed to bond between double-core tail fiber and the self-focusing lens, spherical lens bonds with the single core collimator fixedly, be provided with the glass cover between self-focusing lens and the spherical lens, self-focusing lens all inserts with spherical lens and establishes in the glass cover and bond fixedly with the glass cover.
By adopting the technical scheme, the wavelength division multiplexer can be integrally installed and fixed only by using one glass sleeve, and other components are fixed by bonding, so that the effect of saving materials is achieved.
Optionally, more than half of the length of the self-focusing lens is located in the glass sleeve.
By adopting the technical scheme, more than half of the length of the self-focusing lens is positioned in the glass sleeve, so that the shaking and the axial offset of the self-focusing lens are reduced, and the centering performance of the self-focusing lens is ensured.
Optionally, more than half of the spherical lens is located in the glass sleeve.
Through adopting above-mentioned technical scheme, half length of spherical lens is arranged in the glass cover for guarantee spherical lens's steadiness and spherical lens and glass cover's centering nature.
Optionally, both ends of the glass sleeve in the length direction can be detachably connected with auxiliary calibration assemblies.
By adopting the technical scheme, the auxiliary calibration assembly is used for ensuring the alignment of the double-core tail fiber and the self-focusing lens after being bonded and the alignment of the spherical lens and the single-core collimator.
Optionally, the auxiliary calibration assembly comprises a calibration sleeve, one end of the calibration sleeve in the length direction is provided with an embedding groove for embedding the glass sleeve, an annular positioning boss is arranged on the inner wall of the calibration sleeve, and a gap boss is arranged on the inner wall of the calibration sleeve.
By adopting the technical scheme, after the glass sleeve is inserted into the embedding groove, the centering process of the calibration sleeve and the glass sleeve is completed, so that the centering property between the glass sleeve and the calibration sleeve is ensured, then the double-core tail fiber or the single-core collimator is inserted into the calibration sleeve and is clamped by the annular positioning boss, and the calibration of the double-core tail fiber or the single-core collimator is completed; meanwhile, the gap between the double-core tail fiber and the self-focusing lens or the gap between the spherical lens and the single-core collimator is kept by the arrangement of the gap boss, so that the installation precision of the whole wavelength division combiner is ensured.
Optionally, the calibration sleeve is composed of a pair of calibration shells with semicircular cross sections, and a locking member is arranged between the two calibration shells.
Through adopting above-mentioned technical scheme, can separate two calibration shells to be convenient for break away from the clearance boss in the glue.
Optionally, the retaining member includes first locking platform and the second locking platform of fixing respectively on two calibration shells, be provided with the inserted sheet on the first locking platform, be provided with on the second locking platform and supply the inserted locking groove of inserted sheet.
Through adopting above-mentioned technical scheme, only need insert the back in the locking groove with the inserted sheet, the inserted sheet butt is at second locking platform to accomplish the fixed between two calibration shells, thereby reach the effect of being convenient for separate and two calibration shells of installation.
Optionally, two of the calibration shells are provided with a lifting boss, and the lifting boss is provided with a holding groove.
Through adopting above-mentioned technical scheme, be convenient for hold two calibration shells and make two effect that the calibration shell parts.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the wavelength division multiplexer can be integrally installed and fixed only by using one glass sleeve, and other components are fixedly bonded, so that the effect of saving materials is achieved;
2. the auxiliary calibration assembly ensures the overall bonding quality of the wavelength division multiplexer.
Drawings
Fig. 1 is a schematic diagram of a wavelength division multiplexer according to the related art.
Fig. 2 is a schematic structural diagram of a finished wavelength division multiplexer according to an embodiment of the present application.
Fig. 3 is a schematic diagram of an overall structure of a wavelength division multiplexer according to an embodiment of the present application.
Fig. 4 is a cross-sectional view of a wavelength division multiplexer according to an embodiment of the present application.
Description of reference numerals: 1. a dual-core pigtail; 2. a self-focusing lens; 3. a spherical lens; 4. a single core collimator; 5. a glass sleeve; 6. an auxiliary calibration component; 61. calibrating the shell; 62. a locking member; 621. a first locking stage; 622. a second locking stage; 623. inserting sheets; 624. a locking groove; 63. a fitting groove; 64. a positioning table; 65. a gap boss; 66. lifting the boss; 67. a holding groove; 7. a small glass tube; 8. a large glass tube.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a wavelength division multiplexer. Referring to fig. 2, the wavelength division multiplexer includes a twin-core pigtail 1, a self-focusing lens 2, a spherical lens 3, and a single-core collimator 4 sequentially arranged along a light path direction. The twin-core tail fiber 1 and the self-focusing lens 2 are fixedly bonded by glue with the same optical refractive index as that of the twin-core tail fiber 1. The side, far away from the twin-core tail fiber 1, of the self-focusing lens 2 is sleeved with the glass sleeve 5 and is fixed with the glass sleeve 5 through gluing, and the length of the self-focusing lens 2 is more than half of that of the glass sleeve 5, so that the shaking and the axial offset of the self-focusing lens 2 are reduced, and the centering performance of the self-focusing lens 2 is guaranteed. One end of the spherical lens 3 in the axial direction is inserted into the glass sleeve 5 and is fixedly bonded with the glass sleeve 5, so that the self-focusing lens 2 and the spherical lens 3 are centered and fixed. And half of the length of the spherical lens 3 is positioned in the glass sleeve 5, so as to ensure the stability of the spherical lens 3. The spherical lens 3 is located at one end outside the glass sleeve 5 and is fixedly connected with the single-core collimator 4, so that the wavelength division multiplexer can be integrally installed and fixed only by using one glass sleeve 5, and the effect of saving materials is achieved.
Referring to fig. 3 and 4, auxiliary alignment assemblies 6 are detachably attached to both sides of the glass sleeve 5 in the axial direction. The auxiliary calibration assembly 6 comprises a calibration sleeve. The calibration sleeve is composed of two calibration shells 61 with semicircular cross sections, two locking pieces 62 are arranged between the two calibration shells 61, and the locking pieces 62 comprise a first locking table 621 and a second locking table 622 which are respectively fixed on the two calibration shells 61. The first locking table 621 is provided with an inserting sheet 623 with an arrow-shaped cross section, the second locking table 622 is provided with a locking groove 624 for inserting the inserting sheet 623, and after the inserting sheet 623 is inserted into the locking groove 624, the inserting sheet 623 abuts against the second locking table 622, thereby completing the fixation between the two calibration shells 61. The same end of the two calibration shells 61 in the axial direction is provided with an embedding groove 63 for the glass sleeve 5 to be embedded, so that after the glass sleeve 5 is inserted into the embedding groove, the centering process of the calibration sleeve and the glass sleeve 5 is completed, and the centering performance between the glass sleeve 5 and the calibration sleeve is ensured.
Referring to fig. 3 and 4, a semicircular positioning table 64 for fixing the dual-core pigtail 1 or the single-core collimator 4 is fixed on the inner wall of each calibration shell 61, and the two semicircular positioning tables 64 are combined into a complete annular positioning boss after the two calibration shells 61 are buckled together, so that the dual-core pigtail 1 or the single-core collimator 4 is clamped and fixed in the annular positioning boss, and the centering and fixing effects are achieved.
Referring to fig. 3 and 4, a gap boss 65 for ensuring a gap between the two-core pigtail 1 and the self-focusing lens 2 or a gap between the spherical lens 3 and the single-core collimator 4 is provided on the collimating case 61 between the annular positioning boss and the embedding groove. After the calibration shell 61 is mounted on the glass sleeve 5, the calibration shell 61 is rotated, the twin-core tail fiber 1 is inserted after the self-focusing lens 2 is attached to the gap boss 65, and then the twin-core tail fiber 1 is rotated to enable the end face of the twin-core tail fiber 1 to be attached to the gap boss 65, so that the gap between the twin-core tail fiber 1 and the self-focusing lens 2 is maintained. A glue injection hole is arranged on the calibration shell 61 between the annular positioning boss and the embedding groove, when the double-core tail fiber 1 is inserted into the calibration sleeve and the angle is adjusted, glue is injected from the glue injection hole to complete the bonding and fixing of the double-core tail fiber 1 and the self-focusing lens 2, thereby ensuring the centering between the double-core tail fiber 1 and the self-focusing lens 2,
referring to fig. 3 and 4, each calibration shell 61 is fixed with a lifting boss 66, and the lifting boss 66 is provided with an inner concave holding groove 67, so that the two calibration shells 61 can be held conveniently, and the two calibration shells 61 can be separated.
The implementation principle of the wavelength division multiplexer in the embodiment of the application is as follows: firstly, the self-focusing lens 2 and the spherical lens 3 are inserted into the glass sleeve 5 and are fixedly bonded with the glass sleeve 5. And then the double-core tail fiber 1 and the single-core collimator 4 are fixedly bonded through the auxiliary calibration assembly 6, and then the auxiliary calibration assembly 6 is disassembled to form a finished product of the wavelength division multiplexer.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A wavelength division multiplexer, characterized by: including the two core tail optical fibers (1), self-focusing lens (2), spherical lens (3) and the single core collimator (4) that set gradually, it is fixed to bond between two core tail optical fibers (1) and self-focusing lens (2), spherical lens (3) and single core collimator (4) bond fixedly, be provided with glass cover (5) between self-focusing lens (2) and spherical lens (3), self-focusing lens (2) and spherical lens (3) are all inserted and are established in glass cover (5) and are fixed with glass cover (5) bonding.
2. A wavelength division multiplexer according to claim 1, wherein: more than half of the length of the self-focusing lens (2) is positioned in the glass sleeve (5).
3. A wavelength division multiplexer according to claim 1, wherein: more than half of the length of the spherical lens (3) is positioned in the glass sleeve (5).
4. A wavelength division multiplexer according to claim 1, wherein: both ends of the glass sleeve (5) in the length direction can be detachably connected with auxiliary calibration components (6).
5. A wavelength division multiplexer according to claim 4, wherein: the auxiliary calibrating component (6) comprises a calibrating sleeve, one end of the calibrating sleeve in the length direction is provided with an embedded groove (63) for embedding the glass sleeve (5), the inner wall of the calibrating sleeve is provided with an annular positioning boss, and the inner wall of the calibrating sleeve is provided with a gap boss (65).
6. A wavelength division multiplexer according to claim 5, wherein: the calibration sleeve is composed of a pair of calibration shells (61) with semicircular cross sections, and a locking piece (62) is arranged between the two calibration shells (61).
7. A wavelength division multiplexer according to claim 6, wherein: retaining member (62) are including fixing first locking platform (621) and second locking platform (622) on two calibration shell (61) respectively, be provided with inserted sheet (623) on first locking platform (621), be provided with on second locking platform (622) and supply inserted sheet (623) male locking groove (624).
8. A wavelength division multiplexer according to claim 6, wherein: the two calibration shells (61) are provided with lifting bosses (66), and the lifting bosses (66) are provided with holding grooves (67).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023164488.1U CN213633910U (en) | 2020-12-24 | 2020-12-24 | Wavelength division multiplexer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023164488.1U CN213633910U (en) | 2020-12-24 | 2020-12-24 | Wavelength division multiplexer |
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| CN213633910U true CN213633910U (en) | 2021-07-06 |
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| CN202023164488.1U Active CN213633910U (en) | 2020-12-24 | 2020-12-24 | Wavelength division multiplexer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325950A (en) * | 2021-12-10 | 2022-04-12 | 江苏永鼎光电子技术有限公司 | High-performance 100G dense wavelength division multiplexing device |
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2020
- 2020-12-24 CN CN202023164488.1U patent/CN213633910U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325950A (en) * | 2021-12-10 | 2022-04-12 | 江苏永鼎光电子技术有限公司 | High-performance 100G dense wavelength division multiplexing device |
| CN114325950B (en) * | 2021-12-10 | 2024-03-26 | 江苏永鼎光电子技术有限公司 | High-performance 100G dense wavelength division multiplexing device |
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