CN201708800U - Single fiber two-way transmission converter assembly and single fiber transmission system - Google Patents
Single fiber two-way transmission converter assembly and single fiber transmission system Download PDFInfo
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- CN201708800U CN201708800U CN 201020251994 CN201020251994U CN201708800U CN 201708800 U CN201708800 U CN 201708800U CN 201020251994 CN201020251994 CN 201020251994 CN 201020251994 U CN201020251994 U CN 201020251994U CN 201708800 U CN201708800 U CN 201708800U
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Abstract
The utility model relates to a single fiber two-way transmission converter assembly and a single fiber transmission system. A light adjustable attenuator is added at the receiving end of the single fiber two-way transmission converter, after the adjustable attenuator is added at the receiving end, the power received at the receiving end can be directly tested by a light power meter under the condition of the optical fiber being disconnected. The attenuation value of the adjustable attenuator is not adjusted until the light power on the power meter is lower than the receiving sensitivity of the receiver. After the installation of such an attenuator, even though the optical fiber jumper wire is pulled out at the jump contact man-madly, the light receiver can judge the present optical fiber link being disconnected due to the reflected light power is lower than the sensitivity of the receiver, thereby alarming, switching protection motion and displaying fault point on the webmaster system.
Description
Technical field
The utility model relates to a kind of single fiber bi-directional transmission converter and single fiber optical transmission system.
Background technology
Continuous development along with optical communication technique, people more and more pay attention to the optimization to fiber optic network, give full play to the high speed of photocentre transmission, jumbo advantage, optical fiber technology is used in the communications field and is come more extensively, in the prior art two ends of Transmission Fibers can only provide a direction about, so most optical fiber all is used to do one-way transmission, utility model patent ZL02271267.4 discloses a kind of optical transmission system, it makes light can carry out transmitted in both directions in same optical fiber, as shown in Figure 1, two-way optical transmission system one end comprises optical sender 101 and optical receiver 102, and optical sender 101 is connected with Transmission Fibers 104 by a transducer 103 with optical receiver 102; The other end comprises optical sender 107 and optical receiver 106 too, and be connected with Transmission Fibers 104 by transducer 105, the effect of photoconverter 103 is that light signal that optical sender 101 sends is through behind the transducer 103, be transferred to Transmission Fibers 104, and the light signal that Transmission Fibers 104 biographies are come does not enter optical sender 101, and it is same to enter optical receiver 102., optical receiver 106 will receive from Transmission Fibers 105 and pass the light signal of coming, and the light that optical sender 107 sends will enter into Transmission Fibers 104 through transducer 105 and transmit.Like this, this optical transmission system has just comprised two transmission channels, first is made of optical sender 101, transducer 103, Transmission Fibers 104, transducer 105, optical receiver 106, second is made of optical sender 107, transducer 105, Transmission Fibers 104, transducer 103 and optical receiver 102, and the transmission direction of light is opposite with the transmission direction of first passage, has realized the transmission of bi-directional light useful signal 11 on same Transmission Fibers.Though this optical transmission system has been realized the transmission of bidirectional optical signal on same Transmission Fibers, but the actual conditions behind the actual line attachment of this fibre system are: the reflection 12 of signal can take place at optical fiber jumper connection point, as shown in Figure 2, the luminous power figure that receive at receiving terminal this moment as shown in Figure 3, the consequence that causes thus is, if this optical transmission system has manual operation, extracted optical fiber at the jumper connection point, then still can receive light signal at receiving terminal.For optical receiver; as long as receive light signal; think that then circuit is normal; do not report to the police; (because optical transceiver is can't differentiate that come in the only opposite end that receives or reflect) thus cause service disconnection; and can not switch the protection action automatically, the monitor staff can't find the fault point from webmaster simultaneously.
The utility model content
The utility model is in order to overcome the shortcoming of prior art; a kind of single fiber bi-directional transmission converter assembly and fiber optic transmission system are provided; make if any manual operation; when the point of adjustment drawn optical fiber, report to the police; and changing to the protection action automatically, the monitor staff can find the fault point from webmaster simultaneously.
The utility model is achieved through the following technical solutions above-mentioned purpose, and a kind of single fiber bi-directional transmission converter assembly is provided, and it comprises a single fiber bi-directional transmission converter and an adjustable optical attenuator that increases at single fiber bi-directional transmission converter receiving terminal;
Wherein, described transducer is an optical circulator;
Wherein, described transducer can also be made of coupler and isolator, first port of coupler is used for being connected with Transmission Fibers, second port is connected with above-mentioned adjustable optical attenuator, adjustable optical attenuator is used for being connected with optical receiver, the 3rd port is used for being connected with described isolator, and described isolator is used for being connected with optical sender;
Wherein, be connected with a light power meter on optical fiber jumper connection point or welding point, it is used for the directly test power that receiving terminal received under the situation of optical fiber jumper connection point or the disconnection of welding point.
To achieve these goals, the utility model also provides a kind of single fiber optical transmission system, be included in first optical sender and first optical receiver that are arranged on single optical fiber one end, and second optical sender and second optical receiver that are provided with at the single optical fiber other end, it is characterized in that, described first optical sender is connected with described single optical fiber one end by first converter assembly with first optical receiver, described second optical sender is connected with the described single optical fiber other end by second converter assembly with second optical receiver, and described first and second converter assemblies are above-mentioned single fiber bi-directional transmission converter assembly;
Wherein, on optical fiber jumper connection point or welding point, connect a light power meter, be used for the directly test power that receiving terminal received under the situation of optical fiber jumper connection point or the disconnection of welding point, adjust the pad value of adjustable optical attenuator, till being lower than the receiving sensitivity of receiver in the luminous power on the power meter;
Wherein, on described first and second optical receivers, alarm is set, when not receiving light signal, reports to the police, switch the protection action automatically, and show, can find the fault point from webmaster to be used for the monitor staff;
Wherein, also comprise more a plurality of optical senders and optical receiver and single fiber bi-directional transmission converter assembly, to form the multiple spot optical fiber transmission network.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a prior art single fiber bi-directional transmission optical communication system structure chart
Fig. 2 is the schematic diagram of single fiber bi-directional transmission converter line attachment
Fig. 3 is that prior art is at the received luminous power schematic diagram of receiving terminal
Fig. 4 is the first embodiment of the invention structure chart
Fig. 5 is the receiving sensitivity schematic diagram that increases an adjustable optical attenuator
Fig. 6 is the second embodiment of the invention structure chart
Fig. 7 is the third embodiment of the invention structure chart
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 4, connect an adjustable optical attenuator 201,202 at transducer 103,104 receiving terminals and form single fiber bi-directional transmission converter assembly of the present utility model; As shown in Figure 6, when being used as transducer, its receiving terminal is connected an adjustable optical attenuator 201,202, just formed another single fiber bi-directional transmission converter assembly of the present utility model with circulator 110,111; As shown in Figure 7, when forming transducer, connect an adjustable optical attenuator 201,202, just formed another embodiment of the present utility model at the output of coupler with coupler 401,402 and isolator 403,404.
Single fiber bi-directional optical transmission system as shown in Figure 4, be included in the optical sender 101 and the optical receiver 102 that are arranged on single optical fiber 104 1 ends, and the optical sender 106 and the optical receiver 107 that are provided with at single optical fiber 104 other ends, optical sender 101 is connected with single optical fiber 104 1 ends by transducer 103 and adjustable optical attenuator 201 with optical receiver 102, optical sender 106 is connected with single optical fiber 104 other ends by transducer 103 and adjustable optical attenuator 202 with optical receiver 107,11 expression useful signals among the figure, 12 expression reflected signals, 108 expression optical fiber jumper connection points, 109 expression fused fiber splice points, after system installs, on optical fiber jumper connection point or welding point, connect a light power meter, directly test the power that receiving terminal received under the situation of optical fiber jumper connection point or the disconnection of welding point, adjust the pad value of adjustable optical attenuator, till being lower than the receiving sensitivity of receiver, as shown in Figure 5 in the luminous power on the power meter.
Can find the fault point from webmaster for the ease of the monitor staff, on optical receiver 102,107, alarm is set, when not receiving light signal, report to the police, switch the protection action automatically, and show.
Communicate for the ease of multiple spot, more a plurality of optical senders and optical receiver and single fiber bi-directional transmission converter assembly (single fiber bi-directional transmission converter assembly is any in the above-mentioned single fiber bi-directional transmission converter assembly) are set, to form the multiple spot optical fiber transmission network on the single fiber optical transmission system.
Fig. 6 is used as the another single fiber optical communication system that transducer forms with circulator 110,111, and its principle is identical with above-mentioned principle.
Fig. 7 is used as the another single fiber optical communication system that transducer forms with coupler 401,402 and isolator 403,404, and its principle is also identical with above-mentioned principle.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (8)
1. single fiber bi-directional transmission converter assembly, it comprises a single fiber bi-directional transmission converter and an adjustable optical attenuator that increases at single fiber bi-directional transmission converter receiving terminal.
2. single fiber bi-directional transmission converter assembly as claimed in claim 1 is characterized in that described transducer is an optical circulator.
3. single fiber bi-directional transmission converter assembly as claimed in claim 1, it is characterized in that, described transducer is made of coupler and isolator, first port of coupler is used for being connected with Transmission Fibers, second port is connected with described adjustable optical attenuator, adjustable optical attenuator is used for being connected with optical receiver, and the 3rd port is used for being connected with described isolator, and described isolator is used for being connected with optical sender.
4. as the described single fiber bi-directional transmission converter of one of claim 1-3 assembly, it is characterized in that, be connected with a light power meter on optical fiber jumper connection point or welding point, it is used for the directly test power that receiving terminal received under the situation of optical fiber jumper connection point or the disconnection of welding point.
5. single fiber optical transmission system, be included in first optical sender and first optical receiver that are arranged on single optical fiber one end, and second optical sender and second optical receiver that are provided with at the single optical fiber other end, it is characterized in that, described first optical sender is connected with described single optical fiber one end by first converter assembly with first optical receiver, described second optical sender is connected with the described single optical fiber other end by second converter assembly with second optical receiver, and described first and second converter assemblies are arbitrary described single fiber bi-directional transmission converter assembly among the claim 1-3.
6. single fiber optical transmission system as claimed in claim 5, it is characterized in that, on optical fiber jumper connection point or welding point, be connected with a light power meter, be used for the directly test power that receiving terminal received under the situation of optical fiber jumper connection point or the disconnection of welding point, adjust the pad value of adjustable optical attenuator, till being lower than the receiving sensitivity of receiver in the luminous power on the power meter.
7. as claim 5 or 6 described single fiber optical transmission systems; it is characterized in that; on described first and second optical receivers, alarm is set; when not receiving light signal; report to the police; automatically switch the protection action, and show, can find the fault point from webmaster to be used for the monitor staff.
8. single fiber optical transmission system as claimed in claim 7 is characterized in that, also comprises more a plurality of optical senders and optical receiver and single fiber bi-directional transmission converter assembly, to form the multiple spot optical fiber transmission network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020251994 CN201708800U (en) | 2010-07-09 | 2010-07-09 | Single fiber two-way transmission converter assembly and single fiber transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020251994 CN201708800U (en) | 2010-07-09 | 2010-07-09 | Single fiber two-way transmission converter assembly and single fiber transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201708800U true CN201708800U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020251994 Expired - Fee Related CN201708800U (en) | 2010-07-09 | 2010-07-09 | Single fiber two-way transmission converter assembly and single fiber transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201708800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840883A (en) * | 2013-08-16 | 2014-06-04 | 北京邮电大学 | Method for restraining stimulated Raman scattering crosstalk in two-way optical fiber transmission |
-
2010
- 2010-07-09 CN CN 201020251994 patent/CN201708800U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840883A (en) * | 2013-08-16 | 2014-06-04 | 北京邮电大学 | Method for restraining stimulated Raman scattering crosstalk in two-way optical fiber transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huanggang uotek Communication Technology Co., Ltd. Assignor: Zou Meiyu Contract record no.: 2012420000084 Denomination of utility model: Single fiber two-way transmission converter assembly and single fiber transmission system Granted publication date: 20110112 License type: Exclusive License Record date: 20120711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20160709 |