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 PDF

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Publication number
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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CN
China
Prior art keywords
amplifier
lasers
double
remote
pumped
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710228477.9A
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Chinese (zh)
Inventor
童章伟
刘志强
付益
曾笑波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUILIN DAWEI COMMUNICATIONS TECHNOLOGY Co Ltd
GUILIN XINTONG TECHNOLOGY Co Ltd
CETC 34 Research Institute
Original Assignee
GUILIN DAWEI COMMUNICATIONS TECHNOLOGY Co Ltd
GUILIN XINTONG TECHNOLOGY Co Ltd
CETC 34 Research Institute
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Application filed by GUILIN DAWEI COMMUNICATIONS TECHNOLOGY Co Ltd, GUILIN XINTONG TECHNOLOGY Co Ltd, CETC 34 Research Institute filed Critical GUILIN DAWEI COMMUNICATIONS TECHNOLOGY Co Ltd
Priority to CN201710228477.9A priority Critical patent/CN106911394A/en
Publication of CN106911394A publication Critical patent/CN106911394A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29Repeaters
    • H04B10/291Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/2912Repeaters 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29Repeaters
    • H04B10/291Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/2912Repeaters 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
    • H04B10/2916Repeaters 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

A kind of faint light remote-pumped amplifier based on double 1480nm lasers
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.
CN201710228477.9A 2017-04-10 2017-04-10 A kind of faint light remote-pumped amplifier based on double 1480nm lasers Pending CN106911394A (en)

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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Cited By (2)

* Cited by examiner, † Cited by third party
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

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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

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* Cited by examiner, † Cited by third party
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

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Cited By (3)

* Cited by examiner, † Cited by third party
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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