CN109541763B - Same-wavelength transmitting and receiving optical device - Google Patents
Same-wavelength transmitting and receiving optical device Download PDFInfo
- Publication number
- CN109541763B CN109541763B CN201910061553.0A CN201910061553A CN109541763B CN 109541763 B CN109541763 B CN 109541763B CN 201910061553 A CN201910061553 A CN 201910061553A CN 109541763 B CN109541763 B CN 109541763B
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- China
- Prior art keywords
- metal tube
- light
- optical
- ceramic ferrule
- incident light
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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
- G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
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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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4237—Welding
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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
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4239—Adhesive bonding; Encapsulation with polymer material
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
Abstract
The invention relates to a same-wavelength transmitting and receiving optical device, which comprises a metal tube shell, an optical emitting device, an optical receiving device and a metal tube core, wherein the optical emitting device, the optical receiving device and the metal tube core are connected with the metal tube shell, a ceramic ferrule is arranged in the metal tube core, the ceramic ferrule is provided with a ceramic ferrule APC surface, a 45-degree light splitting sheet is arranged in the metal tube core, the optical emitting device emits incident light, the optical receiving device receives the received light, the incident light is transmitted to the ceramic ferrule APC surface without passing through the 45-degree light splitting sheet, a first included angle is formed between the incident light and the APC surface of the ceramic ferrule, the APC surface of the ceramic ferrule transmits. The invention reduces the mutual interference of emergent light and incident light and improves the transmission quality. Meanwhile, the structure is compact, the space of the optical module is reduced, the dual-fiber optical module is more miniaturized, the adaptability is strong, and the optical module can be applied to various optical fiber transmission schemes, especially to occasions with relatively short optical fiber resources.
Description
Technical Field
The invention relates to the field of optical communication, in particular to a same-wavelength transmitting and receiving optical device.
Background
At present, the competition of the optical communication market is more and more intense, and the infrastructure of communication facilities is more and more intensive, so that the existing optical fiber resources can be greatly utilized by using the same wavelength optical fiber transmission scheme, and the construction cost of a system end is reduced. However, the optical module end cannot use effective optical sorting and isolation measures during transmission with the same wavelength, so that the overall link crosstalk is large, and the transmission quality is affected.
Disclosure of Invention
The invention aims to provide a co-wavelength transmitting and receiving optical device with good transmission quality.
The invention realizes the purpose through the following technical scheme: a co-wavelength transmitting and receiving optical device comprises a metal tube shell, and an optical transmitter, an optical receiver and a metal tube core which are connected with the metal tube shell, wherein a ceramic ferrule is arranged in the metal tube core, the ceramic ferrule is provided with a ceramic ferrule APC surface, a 45-degree beam splitter is arranged in the metal tube core, the optical transmitter transmits incident light, the optical receiver receives received light, the incident light is transmitted to the ceramic ferrule APC surface without passing through the 45-degree beam splitter, a first included angle is formed between the incident light and the ceramic ferrule APC surface, the ceramic ferrule APC surface transmits the received light to the optical receiver through the 45-degree beam splitter, and the incident light and the received light form a second included angle.
A method of assembling a co-wavelength transmitting and receiving optical device according to claim 1, comprising the steps of:
(1) fixing the light emitting device and the metal tube shell, fixing the 45-degree light splitting sheet and the metal tube shell, fixing the ceramic ferrule and the metal tube core, and fixing the light receiving device and the metal tube shell;
(2) the light emitting device and the optical fiber are manually coupled or automatically coupled, the coupled optical power or the coupled current is observed in the coupling process, and the coupled index meets the output optical power of the optical device;
(3) rotating the angle of the APC surface of the ceramic ferrule to enable incident light emitted by the light emitting device not to be transmitted into the ceramic ferrule through the 45-degree light splitting sheet; forming a first included angle between incident light emitted by the light emitting device and the APC surface of the ceramic ferrule;
(4) laser welding is carried out between the metal tube core and the metal tube shell;
(5) the received light is transmitted to the light receiving device through the 45-degree light splitting sheet, and the incident light and the received light form a second included angle.
Furthermore, the light emitting device and the metal tube shell are pressed and connected by adopting an adhesive process.
Further, the 45-degree light splitting sheet is bonded with the metal tube shell by adopting a gluing process.
Furthermore, the ceramic ferrule and the metal tube core are bonded by adopting a gluing process.
Furthermore, the light receiving device and the metal tube shell are bonded by adopting a gluing process.
Compared with the prior art, the same-wavelength transmitting-receiving optical device has the beneficial effects that: by utilizing the physical principle that light is refracted among different media, when light emitted from the optical fiber or the ceramic ferrule is not vertically emitted, the light can deviate from the original main shaft direction for transmission, and the refraction phenomenon is generated; the incident light can be incident along the direction of the main shaft, so that an included angle is formed between the incident light and the emergent light, the two beams of light are separated, the chance of separating the two beams of light is given, the mutual interference of the emergent light and the incident light is reduced, and the transmission quality is improved. Meanwhile, the structure is compact, the space of the optical module is reduced, the dual-fiber optical module is more miniaturized, the adaptability is strong, and the optical module can be applied to various optical fiber transmission schemes, especially to occasions with relatively short optical fiber resources.
Drawings
Fig. 1 is a schematic view of an external structure of a co-wavelength light-emitting device.
Fig. 2 is a schematic diagram of the internal structure of the co-wavelength transmitting/receiving optical device.
Detailed Description
Referring to fig. 1 to 2, an optical device for transmitting and receiving light with the same wavelength includes a metal package 2, a light emitting device 1 connected to the metal package 2, a light receiving device 4, and a metal die 3. The metal tube core 3 is internally provided with a ceramic ferrule 5, and the ceramic ferrule 5 is provided with an APC surface 7 of the ceramic ferrule. The metal tube core 3 is internally provided with a 45-degree light splitting sheet 6. The light emitting device 1 emits incident light 8 and the light receiving device 4 receives received light 9. The incident light 8 is not transmitted to the APC surface 7 of the ferrule through the 45-degree beam splitter 6, and the incident light 8 and the APC surface 7 of the ferrule form a first included angle theta. The ferrule APC face transmits the received light 9 to the light receiving device 4 through the 45 ° splitter 6. The incident light 8 forms a second angle θ 1 with the received light 9.
An assembling method of a same-wavelength transceiving optical device comprises the following steps:
(1) fixing the light emitting device 1 and the metal tube shell 2, specifically, adopting a gluing process to press and connect the light emitting device and the metal tube shell; fixing the 45-degree light splitting sheet 6 and the metal tube shell 2, and specifically, adhering the 45-degree light splitting sheet and the metal tube shell by adopting an adhesive process; fixing the ceramic ferrule 5 and the metal tube core 3, specifically, adhering the ceramic ferrule and the metal tube core by adopting an adhesive process; the light receiving device 4 is fixed with the metal tube shell 2, and specifically, the light receiving device is bonded with the metal tube shell by adopting an adhesive process.
(2) The light emitting device 1 and an optical fiber (not shown) are manually coupled or automatically coupled, the coupled optical power or the coupled current is observed in the coupling process, and the coupled index meets the output optical power of the optical device;
(3) rotating the APC surface 7 of the ceramic ferrule by an angle so that the incident light 8 emitted by the light emitting device 1 is not transmitted into the ceramic ferrule 5 through the 45-degree beam splitter 6; forming a first included angle theta between incident light 8 emitted by the light emitting device 1 and the APC surface 7 of the ceramic ferrule;
(4) laser welding is carried out between the metal tube core 3 and the metal tube shell 2;
(5) the received light 9 is transmitted to the light receiving device 4 through the 45 ° spectroscopic sheet 6, and the incident light and the received light form a second angle θ 1.
The invention utilizes the physical principle that light is refracted among different media, and when the light emitted from the optical fiber or the ceramic ferrule is not vertically emitted, the light can deviate from the original main shaft direction for transmission, so that the refraction phenomenon is generated; the incident light can be incident along the direction of the main shaft, so that an included angle is formed between the incident light and the emergent light, the two beams of light are separated, the chance of separating the two beams of light is given, the mutual interference of the emergent light and the incident light is reduced, and the transmission quality is improved. Meanwhile, the structure is compact, the space of the optical module is reduced, the dual-fiber optical module is more miniaturized, the adaptability is strong, and the optical module can be applied to various optical fiber transmission schemes, especially to occasions with relatively short optical fiber resources.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (6)
1. A co-wavelength transceiver optical device, comprising: the metal tube shell comprises a metal tube shell, and an optical emitter, an optical receiver and a metal tube core which are connected with the metal tube shell, wherein a ceramic ferrule is arranged in the metal tube core, the ceramic ferrule is provided with a ceramic ferrule APC surface, a 45-degree beam splitter is arranged in the metal tube core, the optical emitter emits incident light, the optical receiver receives the received light, the incident light is transmitted to the ceramic ferrule APC surface without passing through the 45-degree beam splitter, a first included angle is formed between the incident light and the ceramic ferrule APC surface, the ceramic ferrule APC surface transmits the received light to the optical receiver through the 45-degree beam splitter, and the incident light and the received light form a second included angle.
2. A method of assembling a co-wavelength transceiver optical device according to claim 1, comprising the steps of:
(1) fixing the light emitting device and the metal tube shell, fixing the 45-degree light splitting sheet and the metal tube shell, fixing the ceramic ferrule and the metal tube core, and fixing the light receiving device and the metal tube shell;
(2) the light emitting device and the optical fiber are manually coupled or automatically coupled, the coupled optical power or the coupled current is observed in the coupling process, and the coupled index meets the output optical power of the optical device;
(3) rotating the angle of the APC surface of the ceramic ferrule to enable incident light emitted by the light emitting device not to be transmitted into the ceramic ferrule through the 45-degree light splitting sheet; forming a first included angle between incident light emitted by the light emitting device and the APC surface of the ceramic ferrule;
(4) laser welding is carried out between the metal tube core and the metal tube shell;
(5) the received light is transmitted to the light receiving device through the 45-degree light splitting sheet, and the incident light and the received light form a second included angle.
3. The method of assembling a co-wavelength transceiver optical device of claim 2, wherein: and the light emitting device and the metal tube shell are pressed and connected by adopting an adhesive process.
4. The method of assembling a co-wavelength transceiver optical device of claim 2, wherein: and the 45-degree light splitting sheet is bonded with the metal tube shell by adopting a gluing process.
5. The method of assembling a co-wavelength transceiver optical device of claim 2, wherein: the ceramic inserting core and the metal tube core are bonded by adopting a gluing process.
6. The method of assembling a co-wavelength transceiver optical device of claim 2, wherein: the light receiving device and the metal tube shell are bonded by adopting an adhesive process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910061553.0A CN109541763B (en) | 2019-01-23 | 2019-01-23 | Same-wavelength transmitting and receiving optical device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910061553.0A CN109541763B (en) | 2019-01-23 | 2019-01-23 | Same-wavelength transmitting and receiving optical device |
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| Publication Number | Publication Date |
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| CN109541763A CN109541763A (en) | 2019-03-29 |
| CN109541763B true CN109541763B (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910061553.0A Active CN109541763B (en) | 2019-01-23 | 2019-01-23 | Same-wavelength transmitting and receiving optical device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110596827A (en) * | 2019-08-12 | 2019-12-20 | 广东九联科技股份有限公司 | PON optical transceiver |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998755A (en) * | 2012-10-16 | 2013-03-27 | 绍兴飞泰光电技术有限公司 | Coarse identical-wavelength division multiplexing bidirectional light receiving and transmitting integrated module with tail fiber type structure and single fiber |
| CN107223214A (en) * | 2017-03-21 | 2017-09-29 | 索尔思光电（成都）有限公司 | Low filter insertion loss transceiver and production and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7266270B2 (en) * | 2002-03-15 | 2007-09-04 | Tessera North America | Waveguide to waveguide monitor |
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- 2019-01-23 CN CN201910061553.0A patent/CN109541763B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998755A (en) * | 2012-10-16 | 2013-03-27 | 绍兴飞泰光电技术有限公司 | Coarse identical-wavelength division multiplexing bidirectional light receiving and transmitting integrated module with tail fiber type structure and single fiber |
| CN107223214A (en) * | 2017-03-21 | 2017-09-29 | 索尔思光电（成都）有限公司 | Low filter insertion loss transceiver and production and preparation method thereof |
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| CN109541763A (en) | 2019-03-29 |
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