CN203387511U - Full-link monitoring remote pump system - Google Patents
Full-link monitoring remote pump system Download PDFInfo
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- CN203387511U CN203387511U CN201320373855.XU CN201320373855U CN203387511U CN 203387511 U CN203387511 U CN 203387511U CN 201320373855 U CN201320373855 U CN 201320373855U CN 203387511 U CN203387511 U CN 203387511U
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- division multiplexer
- gain unit
- wave division
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- link monitoring
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Abstract
The utility model is applicable to the technical field of optical communication and provides a full-link monitoring remote pump system. The full-link monitoring remote pump system comprises a first transmission optical fiber, a remote gain unit, a second transmission optical fiber and a remote pumping unit which are connected in sequence. The system further comprises a first wavelength division multiplexer and a second wavelength division multiplexer, wherein two transmission ends of the first wavelength division multiplexer are connected between the first transmission optical fiber and the remote gain unit, two transmission ends of the second wavelength division multiplexer are connected between the remote gain unit and the second transmission optical fiber, and multiplexing ends of the first wavelength division multiplexer and the second wavelength division multiplexer are connected via an optical fiber. The two wavelength division multiplexers are added on the basis of an existing remote pump system so that probe light and reflected light thereof can bypass the remote gain unit and full-link fault monitoring of the remote pump system can be achieved.
Description
Technical field
The utility model belongs to the optical communication technique field, relates in particular to a kind of full link monitoring Remote optical pumping amplifier.
Background technology
Along with the optical fiber communication distance lengthens gradually, the construction of relay station, management and operation maintenance meeting become more difficult.The full optical transmission system of overlength span provides powerful guarantee for network security, stable, economical operation.Owing to having reduced light/electric conversion times, and can utilize the abundant bandwidth resources of optical fiber, the extra long distance transmission technology greatly reduces the cost of long Distance Transmission, and reliability and the transmission quality of simultaneity factor all are guaranteed.Adopt distant pump technology can greatly enlarge the single spanning distance distance.
Current distant pump technology is widely used in the non-relay optical transmission system of long span, as shown in Figure 1.Remote optical pumping amplifier generally includes the first Transmission Fibers 1 connected in turn, long-range gain unit 2, the second Transmission Fibers 3 and remotely pumping unit 4, its medium-long range gain unit includes Er-doped fiber and wavelength division multiplexer, the passive devices such as isolator, existing Remote optical pumping amplifier can be realized the path monitoring of the second Transmission Fibers, be specially, squeeze into optical time domain reflectometer (Optical Time Domain Reflectometer from receiving terminal (i.e. the equipped at outlet port of the second Transmission Fibers), OTDR) survey light, survey light transmits in described the second Transmission Fibers 3, 2, when the second Transmission Fibers 3 breaks down (such as disconnecting), now having a small amount of detection light reflects and enters into OTDR at the fault place, OTDR can assert that according to reverberation being detected the second optical fiber breaks down, and can calculate concrete abort situation.Because long-range gain unit 2 comprises many passive devices, make detection light can't see through long-range gain unit, therefore from receiving terminal, squeeze into OTDR and survey the light time, can't realize the first Transmission Fibers remote failure monitoring.
The utility model content
In view of the above problems, the utility model provides a kind of full link monitoring Remote optical pumping amplifier, is intended to solve existing Remote optical pumping amplifier and can only realizes the second Transmission Fibers malfunction monitoring, can't realize, at receiving terminal, the first Transmission Fibers is carried out to malfunction monitoring.
Described full link monitoring Remote optical pumping amplifier comprises the first Transmission Fibers, long-range gain unit, the second Transmission Fibers and the remotely pumping unit connected in turn, described system also comprises first wave division multiplexer and Second Wave division multiplexer, two transmission ends of described first wave division multiplexer are connected between described the first Transmission Fibers and long-range gain unit, two transmission ends of described Second Wave division multiplexer are connected between described long-range gain unit and the second Transmission Fibers, and the multiplexing end of described first wave division multiplexer and Second Wave division multiplexer is connected by optical fiber.
The beneficial effects of the utility model are: the utility model has increased by two wavelength division multiplexers on the basis of existing Remote optical pumping amplifier, make detection light can walk around long-range gain unit, enter the first Transmission Fibers, if the first Transmission Fibers breaks down, having a small amount of detection light reflects, reverberation is walked around long-range gain unit and is entered the second Transmission Fibers, then by OTDR, received, further OTDR can calculate concrete abort situation, thereby realizes the full link failure monitoring of Remote optical pumping amplifier.
The accompanying drawing explanation
Fig. 1 is the structure chart of existing Remote optical pumping amplifier;
Fig. 2 is the structure chart of the full link monitoring Remote optical pumping amplifier that provides of the utility model one embodiment;
Fig. 3 is the structure chart that another embodiment of the utility model provides full link monitoring Remote optical pumping amplifier.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Technical solutions of the utility model are applicable to bypass Remote optical pumping amplifier He Sui road Remote optical pumping amplifier, corresponding, the long-range gain unit adopted can, for great distance journey gain unit or the long-range gain unit of bypass, describe below by specific embodiment.
Fig. 2 shows the structure of the full link monitoring Remote optical pumping amplifier that the utility model embodiment provides, and only shows for convenience of explanation the part relevant to the utility model embodiment.
The full link monitoring Remote optical pumping amplifier Wei Sui road Remote optical pumping amplifier that the present embodiment provides, comprise the first Transmission Fibers 1, long-range gain unit 2, the second Transmission Fibers 3 and the remotely pumping unit 4 that connect in turn, described system also comprises first wave division multiplexer 5 and Second Wave division multiplexer 6, two transmission ends of described first wave division multiplexer (port 51, port 52) are connected between described the first Transmission Fibers 1 and long-range gain unit 2, two transmission ends (ports 61 of described Second Wave division multiplexer 6.Port 62) be connected between described long-range gain unit 2 and the second Transmission Fibers 3, the multiplexing end of described first wave division multiplexer 5 and Second Wave division multiplexer 6 is connected by optical fiber, and port 53 is connected with port 63.
Long-range gain unit described here is during with great distance journey gain unit, as shown in Figure 2, in the normal transmission light path, flashlight is from the input input of the first Transmission Fibers 1, flashlight passes through the port 51 of first wave division multiplexer successively, port 52, long-range gain unit 2, the port 61 of Second Wave division multiplexer, port 62, the second Transmission Fibers 3, 4 outputs of remotely pumping unit, in transmitting procedure, the pump light that remotely pumping unit 4 sends enters long-range gain unit 2 by the second Transmission Fibers 3, the amplification of realization to flashlight, in current Remote optical pumping amplifier, as described in the background art, squeeze into OTDR from receiving terminal and survey the light time, can only detect the second Transmission Fibers and whether have fault, and concrete abort situation, and the present embodiment makes and surveys light and can walk around long-range gain unit and realized full link failure monitoring by increasing by two wavelength division multiplexers, concrete, from the reception of the second Transmission Fibers 3, the distolateral OTDR that squeezes into surveys light, if break down in the somewhere in the second Transmission Fibers 3, have a small amount of reverberation at the fault place and be back to OTDR, OTDR just can determine concrete abort situation according to the reverberation detected, if break down in the somewhere of the first Transmission Fibers 1, now survey light by the second Transmission Fibers 3, the port 62 of Second Wave division multiplexer, port 63, the port 53 of first wave division multiplexer, port 51 enters into the first Transmission Fibers 1, and produce a small amount of reverberation at the fault place, described reverberation An Yuan road is back to OTDR in the other direction, OTDR can further calculate concrete fault distance.So just realized the full link monitoring of Remote optical pumping amplifier.
With reference to Fig. 3, the utility model embodiment provides another kind of full link monitoring Remote optical pumping amplifier, this system is the bypass Remote optical pumping amplifier, here long-range gain unit is the long-range gain unit of bypass, for with Fig. 2 in long-range gain unit to show difference, in Fig. 3, described long-range gain unit is labeled as to 7, the present embodiment medium-long range gain unit 7 has an independently pump light input port 72, port 71 is the flashlight interface, remotely pumping unit 4 has an independently pump light delivery outlet, described pump light delivery outlet is connected to the pump light input port of long-range gain unit by an individual fibers, the pump light that pump laser in the remotely pumping unit sends enters long-range gain unit by individual fibers, for flashlight provides the light amplification energy.In the pumping system of Sui road, pump light is to share the second Transmission Fibers to enter long-range gain unit, and in the bypass Remote optical pumping amplifier, pump light is to enter long-range gain unit by individual fibers, realizes that flashlight amplifies purpose.
As a kind of actual mode of choosing, the wavelength range of choice of the pump laser in described remotely pumping unit 4 is 1450nm～1490nm.Preferably, described first wave division multiplexer 5 and Second Wave division multiplexer 6 are the filter with low insertion loss wavelength division multiplexer, can reduce like this loss of flashlight and detection light, while specifically choosing, the Insertion Loss of 5 pairs of flashlights of described first wave division multiplexer is less than 0.5dB, and the Insertion Loss of surveying light is less than to 0.8dB, and the Insertion Loss of 6 pairs of flashlights of described Second Wave division multiplexer and detection light is less than 1dB, the isolation of described first wave division multiplexer 5 and Second Wave division multiplexer 6 is greater than 35dB, and return loss is greater than 50dB.By above-mentioned preferred wavelength division multiplexer selection mode, increased wavelength division multiplexer in Remote optical pumping amplifier after, substantially can not have influence on various optical signal transmission.
In a word, the utility model embodiment has increased by two wavelength division multiplexers on existing Remote optical pumping amplifier basis, makes and surveys light and survey reflection of light light and can walk around long-range gain unit, can realize the full link failure monitoring of Remote optical pumping amplifier.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (8)
1. a full link monitoring Remote optical pumping amplifier, comprise the first Transmission Fibers (1) connected in turn, long-range gain unit (2), the second Transmission Fibers (3) and remotely pumping unit (4), it is characterized in that, described system also comprises first wave division multiplexer (5) and Second Wave division multiplexer (6), two transmission ends of described first wave division multiplexer are connected between described the first Transmission Fibers (1) and long-range gain unit (2), two transmission ends of described Second Wave division multiplexer (6) are connected between described long-range gain unit (2) and the second Transmission Fibers (3), described first wave division multiplexer (5) is connected by optical fiber with the multiplexing end of Second Wave division multiplexer (6).
2. full link monitoring Remote optical pumping amplifier as claimed in claim 1, is characterized in that, described long-range gain unit is with great distance journey gain unit or the long-range gain unit of bypass.
3. full link monitoring Remote optical pumping amplifier as claimed in claim 2, is characterized in that, when described long-range gain unit is the long-range gain unit of bypass, the pump light delivery outlet of remotely pumping unit is connected to the pump light entrance of long-range gain unit by an individual fibers.
4. as full link monitoring Remote optical pumping amplifier as described in claim 1-3 any one, it is characterized in that, the wavelength range of choice of the pump laser in described remotely pumping unit (4) is 1450nm～1490nm.
5. full link monitoring Remote optical pumping amplifier as claimed in claim 4, is characterized in that, described first wave division multiplexer (5) and Second Wave division multiplexer (6) are the filter with low insertion loss wavelength division multiplexer.
6. full link monitoring Remote optical pumping amplifier as claimed in claim 5, is characterized in that, described first wave division multiplexer (5) is less than 0.5dB to the Insertion Loss of flashlight, and the Insertion Loss of surveying light is less than to 0.8dB.
7. full link monitoring Remote optical pumping amplifier as claimed in claim 5, is characterized in that, described Second Wave division multiplexer (6) is less than 1dB to flashlight and the Insertion Loss of surveying light.
8. full link monitoring Remote optical pumping amplifier as claimed in claim 5, is characterized in that, the isolation of described first wave division multiplexer (5) and Second Wave division multiplexer (6) is greater than 35dB, and return loss is greater than 50dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320373855.XU CN203387511U (en) | 2013-06-27 | 2013-06-27 | Full-link monitoring remote pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320373855.XU CN203387511U (en) | 2013-06-27 | 2013-06-27 | Full-link monitoring remote pump system |
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| Publication Number | Publication Date |
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| CN203387511U true CN203387511U (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320373855.XU Expired - Lifetime CN203387511U (en) | 2013-06-27 | 2013-06-27 | Full-link monitoring remote pump system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105049123A (en) * | 2015-07-01 | 2015-11-11 | 武汉光迅科技股份有限公司 | Bidirectional remote pump transmission system sharing remote gain units |
| CN108879305A (en) * | 2018-07-27 | 2018-11-23 | 武汉光迅科技股份有限公司 | A kind of distant pump pumping source device and control method with OTDR function |
| CN108933624A (en) * | 2018-09-14 | 2018-12-04 | 国网西藏电力有限公司 | A kind of optical link detection method and system may pass through gain unit |
| CN112838893A (en) * | 2020-12-22 | 2021-05-25 | 武汉光迅科技股份有限公司 | Remote pump system, in-station pumping unit and method for automatically positioning fault of remote pump system |
-
2013
- 2013-06-27 CN CN201320373855.XU patent/CN203387511U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105049123A (en) * | 2015-07-01 | 2015-11-11 | 武汉光迅科技股份有限公司 | Bidirectional remote pump transmission system sharing remote gain units |
| CN105049123B (en) * | 2015-07-01 | 2017-12-22 | 武汉光迅科技股份有限公司 | Share the two-way distant pump Transmission system of remote gain unit |
| CN108879305A (en) * | 2018-07-27 | 2018-11-23 | 武汉光迅科技股份有限公司 | A kind of distant pump pumping source device and control method with OTDR function |
| CN108879305B (en) * | 2018-07-27 | 2019-12-27 | 武汉光迅科技股份有限公司 | Remote pump pumping source device with OTDR function and control method |
| CN108933624A (en) * | 2018-09-14 | 2018-12-04 | 国网西藏电力有限公司 | A kind of optical link detection method and system may pass through gain unit |
| CN112838893A (en) * | 2020-12-22 | 2021-05-25 | 武汉光迅科技股份有限公司 | Remote pump system, in-station pumping unit and method for automatically positioning fault of remote pump system |
| CN112838893B (en) * | 2020-12-22 | 2022-03-29 | 武汉光迅科技股份有限公司 | Remote pump system, in-station pumping unit and method for automatically positioning fault of remote pump system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |
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| CX01 | Expiry of patent term |