CN106911394A - A kind of faint light remote-pumped amplifier based on double 1480nm lasers - Google Patents
A kind of faint light remote-pumped amplifier based on double 1480nm lasers Download PDFInfo
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- CN106911394A CN106911394A CN201710228477.9A CN201710228477A CN106911394A CN 106911394 A CN106911394 A CN 106911394A CN 201710228477 A CN201710228477 A CN 201710228477A CN 106911394 A CN106911394 A CN 106911394A
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- pumped
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- 230000003287 optical effect Effects 0.000 claims abstract description 35
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 239000013307 optical fiber Substances 0.000 claims abstract description 17
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 230000008054 signal transmission Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000001069 Raman spectroscopy Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- SDIXRDNYIMOKSG-UHFFFAOYSA-L disodium methyl arsenate Chemical compound [Na+].[Na+].C[As]([O-])([O-])=O SDIXRDNYIMOKSG-UHFFFAOYSA-L 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
Classifications
-
- 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
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
-
- 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
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
- H04B10/2916—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing using Raman or Brillouin amplifiers
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Lasers (AREA)
Abstract
The present invention includes optical sender for a kind of faint light remote-pumped amplifier based on double 1480nm lasers, power amplifier, photoreceiver and Transmission Fibers, optical sender launches optical signal, enter the Transmission Fibers of 75~100km by power amplifier, deliver to loss be less than or 30dB application facility, the faint optical signal that application facility is exported again is introduced into passive remote-pumped amplifier, again through the optical signal transmission fiber and image intensifer of 75~100km, photoreceiver is sent into.The passive remote-pumped amplifier is connected as 2 1480nm lasers of pumping source through 2 pump transmission optical fiber of 75~100km respectively.The applicable Measures for Weak Light Signal Power of the present invention can be as small as 38dBm, and the optical signal signal to noise ratio for reaching receiver reaches 16dB, meet the signal to noise ratio requirement of preamplifier demand, and relative intensity noise reaches 100dB, meets the requirement of demodulation techniques；And application easy to implement.
Description
Technical field
The present invention relates to a kind of fiber amplifier technology, and in particular to for a kind of base of non-relay small-signal amplification system
In the faint light remote-pumped amplifier of double 1480nm lasers.
Background technology
- 30dBm, even up to -40dBm are often below in faint optical signal system optical signal, general is all to use to have
Source light amplification is solved.The environment of such faint optical signal system is general all more complicated, and requires long service life, can one
A little occasions do not apply to active scheme and solve, and lack effective amplification means.Faint image intensifer implementation general at present is answered
It is miscellaneous, it is necessary to many technologies are compensated and reliability is relatively low.It is at present more use the input in receiver set preamplifier with
Amplify faint optical signal, but this kind of method its OSNR can only achieve 8dB, and relative intensity noise reaches -80dB, it is impossible to meet
Demodulation techniques requirement.
The content of the invention
In order to overcome existing faint optical signal amplification system complexity and the low shortcoming of reliability, it is an object of the invention to provide
A kind of faint light remote-pumped amplifier based on double 1480nm lasers, the laser of 1480nm lasers through long range transmission light
Fibre, into remote-pumped amplifier as pump light, the acquisition gain of this remote-pumped amplifier is higher and with signal to noise ratio higher.
A kind of faint light remote-pumped amplifier based on double 1480nm lasers of present invention design includes optical sender, power
Amplifier, photoreceiver and Transmission Fibers, optical sender transmitting optical signal, the biography of 75~100km is entered by power amplifier
Lose fibre, deliver to loss be less than or 30dB application facility, the faint optical signal that application facility is exported again is introduced into passive remote pump
Amplifier, then through the optical signal transmission fiber and image intensifer of 75~100km, send into photoreceiver.The passive remote pump amplifies
Device is connected as 2 1480nm lasers of pumping source through 2 pump transmission optical fiber of 75~100km respectively.
Centered on the 1480nm lasers wavelength be 1480 ± 2nm, power output be 30.8dBm~31.8dBm (or
1.2W~1.5W) optical fiber output laser.The need for meet this remote pump gain amplifier, because only being exceeded with a power
1.5W lasers occur strong nonlinear effect.
The power amplifier is the EDFA Erbium-Doped Fiber Amplifier of power output >=12dBm.
Described Transmission Fibers, optical signal transmission fiber and pump transmission optical fiber are G.652 optical fiber or G.655 optical fiber.
Described application facility is detection sensor array, underwater gas transportation pipeline optical fiber leak detection array or fibre optic hydrophone battle array
Row etc..
The remote-pumped amplifier is the passive erbium-doped fiber amplifier for comprising only light path part.
The image intensifer is Pre-EDFA or backward pump raman amplifier.The backward pump Raman
Amplifier is the Raman Fiber Amplifier of 1455nm laser pump (ing)s.
The photoreceiver and it is positioned in same place computer room as 2 1480nm lasers of pumping source, pumping source
Transmission Fibers are identical with the length of optical signal transmission fiber.
Compared with prior art, a kind of advantage of the faint light remote-pumped amplifier based on double 1480nm lasers of the present invention
For：1st, there is provided a kind of effective technology scheme of faint optical amplification system, its Measures for Weak Light Signal Power can be as small as -38dBm, reach
The optical signal signal to noise ratio of receiver can reach 16dB, meet the signal to noise ratio requirement of preamplifier demand, and relative intensity is made an uproar
Sodar reaches the requirement of demodulation techniques to -100dB；2nd, constituted using existing part, it is easy to practice.
Brief description of the drawings
Fig. 1 is this faint light remote-pumped amplifier example structure schematic diagram based on double 1480nm lasers.
Each map logo is as follows in figure：
Tx, optical sender, BA, power amplifier, SENSORS, detection sensor array, FA, remote-pumped amplifier, LA,
Raman Fiber Amplifier, 1480nmPY, 1480nm pumping source, Rx, photoreceiver.
Specific embodiment
This faint light remote-pumped amplifier embodiment based on double 1480nm lasers as shown in figure 1,
Optical sender Tx transmitting optical signals are by the EDFA Erbium-Doped Fiber Amplifier power output as power amplifier BA
The optical signal of 12dBm, 20dB has been lost by 100km single-mode transmission optical fibers G.652, is left optical signal power -8dBm, is sent
It is the detection sensor array SENSORS of 30dB to Insertion Loss, application facility output Measures for Weak Light Signal Power is only -38dBm.It is micro-
Low light signals enter remote-pumped amplifier FA.This example remote-pumped amplifier FA is passive erbium-doped fiber amplifier, and 2 centre wavelengths are
1480 ± 2nm, power output are 30.8dBm~31.8dBm, optical fiber output laser as 1480nm pumping sources
1480nmPY, respectively the mode pump Transmission Fibers connection remote-pumped amplifier FA through 2 100km G.652.Remote-pumped amplifier FA
The optical signal signal to noise ratio of output reaches 16dB, then through 100km single mode optical signal transmission fibers G.652 and by 1455nm laser
The Raman Fiber Amplifier LA of pumping amplifies, feeding photoreceiver Rx.The optical signal signal to noise ratio for reaching receiver Rx reaches 16dB,
And relative intensity noise reaches -100dB.
Above-described embodiment, only the purpose of the present invention, technical scheme and beneficial effect are further described is specific
Individual example, the present invention is not limited to this.All any modifications made within the scope of disclosure of the invention, equivalent, change
Enter, be all contained within protection scope of the present invention.
Claims (9)
1. a kind of faint light remote-pumped amplifier based on double 1480nm lasers, including optical sender, power amplifier, light-receiving
Machine and Transmission Fibers, it is characterised in that：
The optical sender (Tx) launches optical signal, and the Transmission Fibers of 75~100km are entered by power amplifier (BA), delivers to
Loss be less than or 30dB application facility (SENSORS), the faint optical signal that application facility (SENSORS) is exported again is introduced into nothing
Source remote-pumped amplifier (FA), then through the optical signal transmission fiber and image intensifer (LA) of 75~100km, send into photoreceiver
(Rx)；The passive remote-pumped amplifier (FA) is connected as the 2 of pumping source through 2 pump transmission optical fiber of 75~100km respectively
Individual 1480nm lasers (1480nmPY).
2. the faint light remote-pumped amplifier based on double 1480nm lasers according to claim 1, it is characterised in that：
Centered on the 1480nm lasers (1480nmPY) wavelength be 1480 ± 2nm, power output be 30.8dBm~
31.8dBm, optical fiber output laser.
3. the faint light remote-pumped amplifier based on double 1480nm lasers according to claim 1, it is characterised in that：
The power amplifier (BA) is the EDFA Erbium-Doped Fiber Amplifier of power output >=12dBm.
4. the faint light remote-pumped amplifier based on double 1480nm lasers according to claim 1, it is characterised in that：
Described Transmission Fibers, optical signal transmission fiber and pump transmission optical fiber are G.652 optical fiber or G.655 optical fiber.
5. the faint light remote-pumped amplifier based on double 1480nm lasers according to claim 1, it is characterised in that：
Described application facility (SENSORS) is detection sensor array, underwater gas transportation pipeline optical fiber leak detection array or optical fiber water
Listen device array.
6. the faint light remote-pumped amplifier based on double 1480nm lasers according to claim 1, it is characterised in that：
The remote-pumped amplifier (FA) is the passive erbium-doped fiber amplifier for comprising only light path part.
7. the faint light remote-pumped amplifier based on double 1480nm lasers according to claim 1, it is characterised in that：
The image intensifer (LA) is Pre-EDFA or backward pump raman amplifier.
8. the faint light remote-pumped amplifier based on double 1480nm lasers according to claim 7, it is characterised in that：
The backward pump raman amplifier is the Raman Fiber Amplifier of 1455nm laser pump (ing)s.
9. the faint light remote-pumped amplifier based on double 1480nm lasers according to claim 1, it is characterised in that：
The photoreceiver (Rx) and it is positioned over same place computer room as 2 1480nm lasers (1480nmPY) of pumping source
Interior, pump transmission optical fiber is identical with the length of optical signal transmission fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710228477.9A CN106911394A (en) | 2017-04-10 | 2017-04-10 | A kind of faint light remote-pumped amplifier based on double 1480nm lasers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710228477.9A CN106911394A (en) | 2017-04-10 | 2017-04-10 | A kind of faint light remote-pumped amplifier based on double 1480nm lasers |
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| Publication Number | Publication Date |
|---|---|
| CN106911394A true CN106911394A (en) | 2017-06-30 |
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| CN201710228477.9A Pending CN106911394A (en) | 2017-04-10 | 2017-04-10 | A kind of faint light remote-pumped amplifier based on double 1480nm lasers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449744A (en) * | 2018-08-31 | 2019-03-08 | 中国船舶重工集团公司第七〇五研究所 | A kind of non-relay long-range large-scale optical fiber hydrophone array Raman amplification system |
| CN112600619A (en) * | 2020-12-02 | 2021-04-02 | 中科长城海洋信息系统有限公司 | Unrepeatered transmission system and method for optical fiber hydrophone array |
Citations (6)
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|---|---|---|---|---|
| US6507679B1 (en) * | 1999-05-13 | 2003-01-14 | Litton Systems, Inc. | Long distance, all-optical telemetry for fiber optic sensor using remote optically pumped EDFAs |
| CN201740954U (en) * | 2010-08-24 | 2011-02-09 | 武汉光迅科技股份有限公司 | Light path structure for light amplifier of 1480nm pump |
| CN103698959A (en) * | 2012-09-27 | 2014-04-02 | 上海华魏光纤传感技术有限公司 | Remote optical pumped amplifier for distributed optical fiber sensing |
| CN104953451A (en) * | 2015-07-15 | 2015-09-30 | 中国电子科技集团公司第三十四研究所 | Far-end pumping erbium-doped optical fiber amplifier |
| CN106067654A (en) * | 2016-07-22 | 2016-11-02 | 中国电子科技集团公司第三十四研究所 | A kind of far-end pump erbium-doped optical fiber amplifier based on 1950nm laser instrument |
| CN206629067U (en) * | 2017-04-10 | 2017-11-10 | 中国电子科技集团公司第三十四研究所 | A kind of faint light remote-pumped amplifier based on double 1480nm lasers |
-
2017
- 2017-04-10 CN CN201710228477.9A patent/CN106911394A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6507679B1 (en) * | 1999-05-13 | 2003-01-14 | Litton Systems, Inc. | Long distance, all-optical telemetry for fiber optic sensor using remote optically pumped EDFAs |
| CN201740954U (en) * | 2010-08-24 | 2011-02-09 | 武汉光迅科技股份有限公司 | Light path structure for light amplifier of 1480nm pump |
| CN103698959A (en) * | 2012-09-27 | 2014-04-02 | 上海华魏光纤传感技术有限公司 | Remote optical pumped amplifier for distributed optical fiber sensing |
| CN104953451A (en) * | 2015-07-15 | 2015-09-30 | 中国电子科技集团公司第三十四研究所 | Far-end pumping erbium-doped optical fiber amplifier |
| CN106067654A (en) * | 2016-07-22 | 2016-11-02 | 中国电子科技集团公司第三十四研究所 | A kind of far-end pump erbium-doped optical fiber amplifier based on 1950nm laser instrument |
| CN206629067U (en) * | 2017-04-10 | 2017-11-10 | 中国电子科技集团公司第三十四研究所 | A kind of faint light remote-pumped amplifier based on double 1480nm lasers |
Non-Patent Citations (2)
| Title |
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| JOSEP PRAT等: "Remote amplification in high-density passive optical networks" * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449744A (en) * | 2018-08-31 | 2019-03-08 | 中国船舶重工集团公司第七〇五研究所 | A kind of non-relay long-range large-scale optical fiber hydrophone array Raman amplification system |
| CN112600619A (en) * | 2020-12-02 | 2021-04-02 | 中科长城海洋信息系统有限公司 | Unrepeatered transmission system and method for optical fiber hydrophone array |
| CN112600619B (en) * | 2020-12-02 | 2022-07-01 | 中科长城海洋信息系统有限公司 | Unrepeatered transmission system and method for optical fiber hydrophone array |
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