CN201491015U - Optical communication equipment with single fiber and bidirectional asymmetrical rate - Google Patents
Optical communication equipment with single fiber and bidirectional asymmetrical rate Download PDFInfo
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- CN201491015U CN201491015U CN2009201729102U CN200920172910U CN201491015U CN 201491015 U CN201491015 U CN 201491015U CN 2009201729102 U CN2009201729102 U CN 2009201729102U CN 200920172910 U CN200920172910 U CN 200920172910U CN 201491015 U CN201491015 U CN 201491015U
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Abstract
The utility model discloses optical communication equipment with a single fiber and bidirectional asymmetrical rate. The equipment adopts a simplex serializer and a deserializer with mutually independent uplink transmission rate and downlink transmission rate, namely the serializer and the deserializer use independent phase-locking ring respectively. An optical communication module which adopts the asymmetrical rate uses an FP laser in the uplink and downlink directions. The optical communication equipment with the single fiber and the bidirectional asymmetrical rate has different uplink transmission rate and downlink transmission rate, thereby effectively improving the transmission efficiency and avoiding the transmission of a large amount of useless data. The reduction of the transmission rate increases transmission distance and also improves the stability of a system simultaneously. Furthermore, in the utility model, the FP laser is used in the uplink and the downlink directions, and the cost of a device is reduced.
Description
Technical field
The utility model relates to the optical communication technique field, particularly relates to the optical communication equipment of the asymmetric speed of a kind of single fiber bi-directional.
Background technology
At present, known optical communications module is 1X9, SFP, SFF, GBIC etc. for example, and its traffic rate is all followed the standard-required of synchronous optical network (SONET), promptly is made of light carrier levels such as OC-1, OC-3, OC-12, OC-24, OC-48.Its total characteristics are that reception and transmission are to use by symmetrical rate.With above-mentioned corresponding module and serial/separate the serial chip to be used, constitute typical optical communication equipment.
The working method of traditional optical communication equipment is: upstream rate is 1.25Gbps, operation wavelength λ 1=1310nm, FP laser; Downstream rate is 1.25Gbps, operation wavelength λ 2=1550nm, Distributed Feedback Laser; When optical transmission distance during less than 20 kilometers, overcome the influence of the decay of optical fiber and dispersion characteristics to proper communication, no matter operation wavelength λ 2=1550nm is in uply or descending, all will use Distributed Feedback Laser could guarantee that the communication of equipment is normal.
Above-mentioned optical communication equipment has obtained extensive use on most communication system.But, but be asymmetric in its loaded information amount of industrial circle, promptly a large amount of information are sent to Master Control Center, and the information of passback is considerably less.In the application of single fiber bi-directional,, but adopt Distributed Feedback Laser certainly will cause the significantly increase of cost because the problem of chromatic dispersion has adopted Distributed Feedback Laser; A large amount of idle datas certainly will cause the stability decreases of optical link simultaneously.
The utility model content
Problem to be solved in the utility model provides the optical communication equipment of the asymmetric speed of a kind of single fiber bi-directional, to overcome the high and stable defective of equipment cost in the prior art.
For achieving the above object, provide the optical communication equipment of the asymmetric speed of a kind of single fiber bi-directional according to execution mode of the present utility model, described equipment comprises single worker's up serializer, single worker's up deserializer, single worker's descending serializer, single worker's descending deserializer, the first asymmetric simplex optical module and the second asymmetric simplex optical module; The described first asymmetric simplex optical module is connected respectively with described single worker's up serializer, single worker's descending deserializer, the second asymmetric simplex optical module, and the described second asymmetric simplex optical module also is connected respectively with described single worker's up deserializer, single worker's descending serializer; At up direction, the described first asymmetric simplex optical module receives the data of described single worker's up serializer transmission, and described data are sent to the second asymmetric simplex optical module, the described second asymmetric simplex optical module sends to data described single worker's up deserializer; At down direction, the described second asymmetric simplex optical module receives the data of described single worker's descending serializer transmission, and described data are sent to the first asymmetric simplex optical module, the described first asymmetric simplex optical module sends to data described single worker's descending deserializer; Up direction and down direction adopt independently message transmission rate.
Preferably, the message transmission rate of up direction is 1.25Gbps.
Preferably, the message transmission rate of down direction is 52Mbps.
Preferably, in the described first asymmetric simplex optical module and the second asymmetric simplex optical module, all adopt the FP laser.
Preferably, in the described first asymmetric simplex optical module and the second asymmetric simplex optical module, it is the FP laser of 1310nm that up direction adopts operation wavelength.
Preferably, in the described first asymmetric simplex optical module and the second asymmetric simplex optical module, it is the FP laser of 1550nm that down direction adopts operation wavelength.
Compared with prior art, the technical solution of the utility model has following advantage:
Therefore the speed difference of the up-downgoing of the optical communication equipment of the asymmetric speed of single fiber bi-directional of the present utility model transmission has improved efficiency of transmission effectively, thereby has avoided the transmission of a large amount of hash.The reduction of transmission rate has increased transmission range, has also improved the stability of system simultaneously.The utility model has all adopted the FP laser at up-downlink direction in addition, avoids using expensive Distributed Feedback Laser, thereby has reduced device cost.
Description of drawings
Fig. 1 is the structural representation of optical communication equipment of the asymmetric speed of a kind of single fiber bi-directional of the utility model embodiment.
Wherein, 1 is up transmission high speed data transfer, and 2 is up reception high speed data transfer, 3 is descending reception low speed data transmission, 4 is the transmission of descending transmission low speed data, and 5 be that the light wavelength lambda 1,6 of up transmission high speed data transfer is the light wavelength lambda 2 that descending transmission low speed data transmits.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
The structure of the optical communication equipment of the asymmetric speed of a kind of single fiber bi-directional of the utility model embodiment as shown in Figure 1, described equipment comprises single worker's up serializer, single worker's up deserializer, single worker's descending serializer, single worker's descending deserializer, the first asymmetric simplex optical module and the second asymmetric simplex optical module.The first asymmetric simplex optical module is connected respectively with described single worker's up serializer, single worker's descending deserializer, the second asymmetric simplex optical module, and the described second asymmetric simplex optical module also is connected respectively with described single worker's up deserializer and single worker's descending serializer.At up direction, the described first asymmetric simplex optical module receives the data of described single worker's up serializer transmission, and described data are sent to the second asymmetric simplex optical module, the described second asymmetric simplex optical module sends to data described single worker's up deserializer; At down direction, the described second asymmetric simplex optical module receives the data of described single worker's descending serializer transmission, and described data are sent to the first asymmetric simplex optical module, the described first asymmetric simplex optical module sends to data described single worker's descending deserializer.
The up direction of described equipment and down direction adopt independently message transmission rate, and for example, the message transmission rate of up direction can be 1.25Gbps, and the message transmission rate of down direction can be 52Mbps.
In the described first asymmetric simplex optical module and the second asymmetric simplex optical module, adopt the FP laser.For example adopting operation wavelength at up direction is the FP laser of 1310nm, and adopting operation wavelength at down direction is the FP laser of 1550nm.
In the present embodiment, adopt single worker's serializer, deserializer, uplink speed and downlink transfer speed are promptly used independently phase-locked loop separately without any relation, improve the efficiency of transmission ratio of transmission bandwidth (effective bandwidth with).Adopt the optical communications module of asymmetric speed, avoid using expensive Distributed Feedback Laser as much as possible, thereby reduce equipment cost, thereby reach the purpose of the stability that improves transmission range and equipment.
When the descending bulk information of needs and during up a little information, according to design of the present utility model, the message transmission rate that up direction can be set is correspondingly less than the message transmission rate of down direction.
Adopt the optical communication equipment of the asymmetric speed of single fiber bi-directional of present embodiment, when the optical transmission distance was used less than 20 kilometers and single fiber bi-directional, no matter the decay of optical fiber can both guarantee that with dispersion characteristics communicating by letter of equipment is normal.
Compare with traditional optical communication equipment, the optical communication equipment of the asymmetric speed of single fiber bi-directional of present embodiment has the following advantages:
1, the speed difference of up-downgoing transmission has been avoided the transmission of a large amount of hash like this, thereby has been improved efficiency of transmission effectively.The reduction of transmission rate has increased transmission range, has also improved the stability of system simultaneously.In fact at industrial control field, the characteristics major part of its communication all is to go up the continuous periodic a large amount of information of behavior, following behavior paroxysmal a spot of information intermittently, and this point in use especially will be noted.
2, in conventional transmission range scope, avoid using expensive Distributed Feedback Laser, thereby reduced device cost.Above-mentioned two kinds of working methods through overall merit, directly reduce cost 55% with regard to hop.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. the optical communication equipment of the asymmetric speed of single fiber bi-directional, it is characterized in that described equipment comprises single worker's up serializer, single worker's up deserializer, single worker's descending serializer, single worker's descending deserializer, the first asymmetric simplex optical module and the second asymmetric simplex optical module;
The described first asymmetric simplex optical module is connected respectively with described single worker's up serializer, single worker's descending deserializer, the second asymmetric simplex optical module, and the described second asymmetric simplex optical module also is connected respectively with described single worker's up deserializer and single worker's descending serializer;
At up direction, the described first asymmetric simplex optical module receives the data of described single worker's up serializer transmission, and described data are sent to the second asymmetric simplex optical module, the described second asymmetric simplex optical module sends to data described single worker's up deserializer;
At down direction, the described second asymmetric simplex optical module receives the data of described single worker's descending serializer transmission, and described data are sent to the first asymmetric simplex optical module, the described first asymmetric simplex optical module sends to data described single worker's descending deserializer;
Up direction and down direction adopt independently message transmission rate.
2. the optical communication equipment of the asymmetric speed of single fiber bi-directional as claimed in claim 1 is characterized in that, the message transmission rate of up direction is 1.25Gbps.
3. the optical communication equipment of the asymmetric speed of single fiber bi-directional as claimed in claim 1 is characterized in that, the message transmission rate of down direction is 52Mbps.
4. as the optical communication equipment of the asymmetric speed of each described single fiber bi-directional of claim 1 to 3, it is characterized in that, in the described first asymmetric simplex optical module and the second asymmetric simplex optical module, all adopt the FP laser.
5. the optical communication equipment of the asymmetric speed of single fiber bi-directional as claimed in claim 4, it is characterized in that, in the described first asymmetric simplex optical module and the second asymmetric simplex optical module, it is the FP laser of 1310nm that up direction adopts operation wavelength.
6. the optical communication equipment of the asymmetric speed of single fiber bi-directional as claimed in claim 4, it is characterized in that, in the described first asymmetric simplex optical module and the second asymmetric simplex optical module, it is the FP laser of 1550nm that down direction adopts operation wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201729102U CN201491015U (en) | 2009-08-12 | 2009-08-12 | Optical communication equipment with single fiber and bidirectional asymmetrical rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201729102U CN201491015U (en) | 2009-08-12 | 2009-08-12 | Optical communication equipment with single fiber and bidirectional asymmetrical rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201491015U true CN201491015U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201729102U Expired - Lifetime CN201491015U (en) | 2009-08-12 | 2009-08-12 | Optical communication equipment with single fiber and bidirectional asymmetrical rate |
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| Country | Link |
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| CN (1) | CN201491015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891695A (en) * | 2012-11-06 | 2013-01-23 | 中国科学院上海微***与信息技术研究所 | Asymmetric flexible communication transceiver and communication system |
-
2009
- 2009-08-12 CN CN2009201729102U patent/CN201491015U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891695A (en) * | 2012-11-06 | 2013-01-23 | 中国科学院上海微***与信息技术研究所 | Asymmetric flexible communication transceiver and communication system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING C + W TECHNOLOGY DEVELOPMENT CO., LTD. ZHA |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20101108 Address after: 100015 Beijing City, Chaoyang District Jiuxianqiao Road No. 14 building 14 layer C Co-patentee after: Beijing C & W Technology Development Co.,Ltd. Patentee after: Beijing C&W Electronics (Group) Co., Ltd. Co-patentee after: Zhaowei Optical Communication Technolog Co., Ltd., Beijing Address before: 100015 Beijing City, Chaoyang District Jiuxianqiao Road No. 14 building 14 layer C Patentee before: Beijing C&W Electronics (Group) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |
|
| CX01 | Expiry of patent term |