CN113311543A - Novel coarse wavelength division multiplexer assembly - Google Patents
Novel coarse wavelength division multiplexer assembly Download PDFInfo
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- CN113311543A CN113311543A CN202110619149.8A CN202110619149A CN113311543A CN 113311543 A CN113311543 A CN 113311543A CN 202110619149 A CN202110619149 A CN 202110619149A CN 113311543 A CN113311543 A CN 113311543A
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- Prior art keywords
- wavelength division
- division multiplexer
- branching
- transmission
- multiplexers
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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
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
-
- 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
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a novel coarse wavelength division multiplexer assembly, which is integrated in a case and comprises: the wavelength division multiplexer comprises a transmission end, a COM end and a reflection end, the wavelength division multiplexer consists of 1 main path wavelength division multiplexer and 24 branching wavelength division multiplexers, the transmission end of the main path wavelength division multiplexer is connected with the input end of the 1 x 24 branching wavelength division multiplexer, the output end of the 1 x 24 branching wavelength division multiplexer is connected with the transmission end of the 24 branching wavelength division multiplexers, and the 24 branching wavelength division multiplexers are connected in parallel. The wavelength division multiplexer is used for reflecting the wavelength, the unnecessary wavelength is filtered, in order to improve the return loss of the reflection end of the wavelength division multiplexer, the transmission end and the transmission end of the wavelength division multiplexer are connected through the branching unit, and the return loss of the reflection product is improved.
Description
Technical Field
The invention relates to the field of communication equipment, in particular to a novel coarse wavelength division multiplexer assembly.
Background
Wavelength division multiplexing refers to a technology of converging two or more optical carrier signals with different wavelengths together at a sending end through a multiplexer and coupling the optical carrier signals to the same optical fiber of an optical line for transmission; at the receiving end, the optical carriers of the various wavelengths are separated by a demultiplexer and then further processed by an optical receiver to recover the original signal. This technique of simultaneously transmitting two or more optical signals of different wavelengths in the same optical fiber is called wavelength division multiplexing.
In patent application document CN202021642258.9, a multi-channel wavelength division multiplexer assembly is mentioned, which is composed of a device packaging box, a plurality of single-channel wavelength division multiplexers, and a contact protection sleeve, wherein the device packaging box has a multi-channel space capable of accommodating a plurality of single-channel wavelength division multiplexers arranged side by side; the single-channel wavelength division multiplexer comprises an input optical fiber, a reflection output optical fiber and a transmission output optical fiber; a plurality of single-channel wavelength division multiplexers are connected in series; the first channel COM end is an input end, the reflection end of the first channel wavelength division multiplexer is welded with the COM end of the next channel wavelength division multiplexer, and so on, the reflection end of the last channel can be used as a product upgrading section for standby, and the transmission end of each channel is connected with a tail fiber. However, this patent filters out a plurality of different signals for signal transmission, mainly transmitting transmission wavelengths.
Disclosure of Invention
The invention provides a novel coarse wavelength division multiplexer component, which is realized by fusing a plurality of wavelength division multiplexers with the same specification with a branching unit, filtering transmission, respectively connecting the transmission with the input and the output of the branching unit, mainly transmitting reflection wavelength, realizing transmission of a plurality of groups of same signals and improving the return loss of a reflection port of a product by the following technical scheme:
novel coarse wavelength division multiplexer subassembly, novel coarse wavelength division multiplexer subassembly is integrated in an organic case, a serial communication port, include: the wavelength division multiplexer comprises a transmission end, a COM end and a reflection end, the wavelength division multiplexer consists of 1 main path wavelength division multiplexer and 24 branching wavelength division multiplexers, the transmission end of the main path wavelength division multiplexer is connected with the input end of the 1 x 24 branching wavelength division multiplexer, the output end of the 1 x 24 branching wavelength division multiplexer is connected with the transmission end of the 24 branching wavelength division multiplexers, and the 24 branching wavelength division multiplexers are connected in parallel.
Preferably, the novel coarse wavelength division multiplexer assembly further comprises: and the COM ends of the 24 branching wavelength division multiplexers are welded with the 0.9LC/APC tail fiber and are fixed in the rack.
Preferably, the novel coarse wavelength division multiplexer assembly further comprises: and the reflection ends of the 24 branching wavelength division multiplexers are respectively added with 12-core MPO connectors and fixed in the middle of the case.
Preferably, the main path wavelength division multiplexer COM end and the reflection end are respectively welded with two 0.9LC/APC pigtails and fixed on the left side of the chassis.
Preferably, the transmission end of the main path wavelength division multiplexer is connected with the input end of the 1 × 24 splitter, and the output end of the 1 × 24 splitter is connected with the transmission ends of the 24 branching wavelength division multiplexers in a fusion mode.
The invention has the beneficial effects that:
the invention utilizes the wavelength division multiplexer to reflect the wavelength, filters the unnecessary wavelength, and connects the transmission end and the transmission end of the wavelength division multiplexer through the branching unit to improve the return loss of the reflection end of the wavelength division multiplexer, thereby improving the return loss of the reflection product. The transmission channels are filtered, and 24 FWDM transmission ends are connected through a 1-24 splitter, so that 25 FWDMs can be assembled and integrated in one chassis for convenient use and operation. This kind of structural design can filter a plurality of with specification wavelength division multiplexer and branching unit fusion mode, will transmit and filter respectively with branching unit input and output connection, main transmission reflection wavelength realizes that the multiunit carries out the transmission with the signal, improves product reflection port return loss, and conventional product reflection return loss > 40dB, according to novel structure, reflection return loss > 45 dB.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of the novel coarse wavelength division multiplexer assembly of the present invention;
FIG. 2 is a schematic diagram of a wavelength division multiplexer architecture;
FIG. 3 is a diagram of the exterior design of the enclosure of the present invention;
fig. 4 is a diagram of the internal components of the product of the present invention.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
In this embodiment, as shown in fig. 1, a novel coarse wavelength division multiplexer assembly is provided, where the novel coarse wavelength division multiplexer assembly is integrated in a chassis, and the novel coarse wavelength division multiplexer assembly includes: the wavelength division multiplexer comprises a transmission end, a COM end and a reflection end, the wavelength division multiplexer consists of 1 main path wavelength division multiplexer and 24 branching wavelength division multiplexers, the transmission end of the main path wavelength division multiplexer is connected with the input end of the 1 x 24 branching wavelength division multiplexer, the output end of the 1 x 24 branching wavelength division multiplexer is connected with the transmission end of the 24 branching wavelength division multiplexers, and the 24 branching wavelength division multiplexers are connected in parallel.
In this embodiment, the novel coarse wavelength division multiplexer component further includes: and the COM ends of the 24 branching wavelength division multiplexers are welded with the 0.9LC/APC tail fiber and are fixed in the rack.
In this embodiment, the novel coarse wavelength division multiplexer component further includes: and the reflection ends of the 24 branching wavelength division multiplexers are respectively added with 12-core MPO connectors and fixed in the middle of the case.
In this embodiment, the main path wavelength division multiplexer COM end and the reflection end are respectively welded to two different 0.9LC/APC pigtails and fixed to the left side of the chassis.
In this embodiment, the transmission end of the main path wavelength division multiplexer is connected to the input end of the 1 × 24 splitter, and the output end of the 1 × 24 splitter is connected to the transmission ends of the 24 branching wavelength division multiplexers in a fusion manner.
As shown in fig. 2, the conventional FWDM wavelength division multiplexer is usually a three-port device, the COM terminal is connected to a light source, the access light source is divided into transmission and reflection wavelengths for emission, and the COM terminal, the transmission terminal and the reflection terminal are connected to other devices in a conventional SC/FC/LC connector manner, which is usually a single device.
It should be added that, in the present invention, the FWDM wavelength ranges are reflection (1270-.
As shown in fig. 4, regarding port description:
FWDM wavelength division multiplexer to the left of the splitter:
the COM terminal of the FWDM represents the COM IN terminal of the client;
the reflection end of the FWDM represents the IP-OUT end of a client;
the transmissive side of the FWDM represents the IN side of the customer;
1 x 24 splitter output end all editing CATV 1-24;
FWDM wavelength division multiplexer on the right of the splitter:
the COM end of the FWDM represents the CATV + IP end of the client;
the reflection end of the FWDM represents the IP end of the client;
the transmissive side of the FWDM represents the CATV side of the customer (this is fused to the 1 x 24 output);
product connector description:
adding LC/APC connectors to COM IN and IP-OUT;
all CATV + IP (1-24) are added with LC/APC connectors (adding heads according to serial numbers);
IP end (1-24) plus 3 sets of 12 core MPO/APC (with 8 heads in the middle) plus 1-89-1617-24 in sequence number.
As shown in fig. 3, the innovation point of the invention is as follows: the transmission channels are filtered, and 24 FWDM transmission ends are connected through a 1-24 splitter, so that 25 FWDMs can be assembled and integrated in one chassis for convenient use and operation.
The advantages are that: the invention relates to a structure design which integrates a plurality of wavelength division multiplexers with the same specification and a branching unit, filters transmission and respectively connects with the input and the output of the branching unit, mainly transmits reflection wavelength, realizes transmission of a plurality of groups of same signals, and improves the return loss of a product reflection port.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. Novel coarse wavelength division multiplexer subassembly, novel coarse wavelength division multiplexer subassembly is integrated in an organic case, a serial communication port, include: the wavelength division multiplexer comprises a transmission end, a COM end and a reflection end, the wavelength division multiplexer consists of 1 main path wavelength division multiplexer and 24 branching wavelength division multiplexers, the transmission end of the main path wavelength division multiplexer is connected with the input end of the 1 x 24 branching wavelength division multiplexer, the output end of the 1 x 24 branching wavelength division multiplexer is connected with the transmission end of the 24 branching wavelength division multiplexers, and the 24 branching wavelength division multiplexers are connected in parallel.
2. The novel coarse wavelength division multiplexer assembly according to claim 1, further comprising: and the COM ends of the 24 branching wavelength division multiplexers are welded with the 0.9LC/APC tail fiber and are fixed in the rack.
3. The novel coarse wavelength division multiplexer assembly according to claim 1, further comprising: and the reflection ends of the 24 branching wavelength division multiplexers are respectively added with 12-core MPO connectors and fixed in the middle of the case.
4. The new coarse wavelength division multiplexer assembly according to claim 1, wherein the main path wavelength division multiplexer COM end and the reflection end are respectively fusion-spliced with two 0.9LC/APC pigtails and fixed to the left side of the chassis.
5. The novel coarse wavelength division multiplexer assembly according to claim 1, wherein the transmission port of the main wavelength division multiplexer is connected to the input port of the 1 x 24 splitter, and the output port of the 1 x 24 splitter is connected to the transmission ports of the 24 branch wavelength division multiplexers by fusion bonding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110619149.8A CN113311543A (en) | 2021-06-03 | 2021-06-03 | Novel coarse wavelength division multiplexer assembly |
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| CN202110619149.8A CN113311543A (en) | 2021-06-03 | 2021-06-03 | Novel coarse wavelength division multiplexer assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655567A (en) * | 2021-09-01 | 2021-11-16 | 四川天邑康和通信股份有限公司 | Wavelength division multiplexer with multiple channels |
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Application publication date: 20210827 |
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