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CN104901149A - Spectral beam combining system based on three diffraction gratings - Google Patents

Spectral beam combining system based on three diffraction gratings Download PDF

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Publication number
CN104901149A
CN104901149A CN201510224501.2A CN201510224501A CN104901149A CN 104901149 A CN104901149 A CN 104901149A CN 201510224501 A CN201510224501 A CN 201510224501A CN 104901149 A CN104901149 A CN 104901149A
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China
Prior art keywords
diffraction grating
piece
diffraction
laser
fiber amplifier
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Pending
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CN201510224501.2A
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Chinese (zh)
Inventor
何兵
郑也
周军
杨依枫
胡曼
刘广柏
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Shanghai Institute of Optics and Fine Mechanics of CAS
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Shanghai Institute of Optics and Fine Mechanics of CAS
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Priority to CN201510224501.2A priority Critical patent/CN104901149A/en
Publication of CN104901149A publication Critical patent/CN104901149A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a spectral beam combining system based on three diffraction gratings. The system comprises M seed resources with different wavelengths, M optical fiber amplifier arrays, M output collimators, a first diffraction grating, a second diffraction grating, a third diffraction grating, a plane reflector, a Fourier lens and a CCD (Charge Coupled Device) camera. The system combines multipath optical fiber laser beams into a beam of laser for outputting, so as to realize the output of high power and high beam quality. The spectral beam combining system solves the problems that the quality of a beam combined by the traditional spectral combining system is degraded seriously and the path spreading of single diffraction gratings is difficult, and is feasible for realizing higher power spreading of an optical fiber laser.

Description

Based on the spectrum beam combination system of three pieces of diffraction grating
Technical field
The present invention relates to optical-fiber laser spectrum beam combination system, particularly a kind of spectrum beam combination system based on three pieces of diffraction grating.
Background technology
Volume is little, efficiency is high owing to having for fiber laser, good beam quality and be convenient to the good feature such as heat management, achieve development at full speed in recent years, be widely used in fields such as space communication, laser weapon, materials processing, remote sensing and laser radars.Along with the development of technology, the optical-fiber laser of high-power and high-lighting beam quality becomes the active demand of each application gradually, but due to the restriction of nonlinear effect, thermal effect and facet damage, single-path optical fiber laser also exists certain power limit.In this case, optical-fiber laser conjunction bundle technology is arisen at the historic moment, comprising coherently combined and incoherent conjunction bundle.Coherently combined has strict requirement to the live width of laser, phase place, and the road realizing high power synthesis has met with certain bottleneck.But not coherently combined, also known as making spectrum beam combination, require greatly to reduce to the wavelength of laser, phase place and live width etc., this method be by one piece of diffraction grating by the laser of the different wave length of different angles incidence with same angle of diffraction outgoing, thus obtain a conjunction Shu Jiguang being total to aperture and exporting, spectrum beam combination technology is considered to one and is hopeful very much to obtain high-power conjunction bundle technology, recently becomes study hotspot.
The structure of existing optical-fiber laser spectrum beam combination system as shown in Figure 2, by the seed source 201 of N number of different wave length, N number of fiber amplifier 202 and N number of collimation follower 203, catadioptric mirror group 204, diffraction grating 205, plane mirror 206, fourier lense 207, CCD camera 208 forms.The seed source of N number of different wave length is amplified to certain power through N number of fiber amplifier, through the outgoing of N number of collimation follower.Each road shoot laser incides on diffraction grating through a pair catadioptric mirror, and diffraction grating take wavelength as λ 0li Teluo angle put, can incide on diffraction grating with suitable angle by Shi Ge road light beam by adjusting catadioptric mirror, thus with identical angle outgoing, the high power realizing multi-path laser exports in aperture altogether.
But, there is certain defect in above-mentioned existing Spectral beam combining system, lasing light emitter used in experiment all has certain live width, can extrapolate according to balzed grating, equation 2d sin θ=λ, diffraction grating also exists effect of dispersion Δ θ=Δ λ/2d cos θ for there being the light source of certain live width, because beam quality directly depends on far-field divergence angle and waist radius, this effect of dispersion will cause the decline of synthesizing beam quality, in order to ensure that synthesis beam quality is unlikely to serious degradation as far as possible, need the live width Δ λ limiting each way light beam, according to relevant document analysis, known Δ λ should be limited in GHz magnitude, and for narrow cable and wide optical fiber laser, Δ λ directly decides again the scattering threshold value of stimulated Brillouin scattering, less Δ λ just limits the power of single channel beamlet, thus the power limiting Spectral beam combining is expanded.
Summary of the invention
The present invention is directed to the above-mentioned existing optical-fiber laser synthesis beam quality closed existing for beam system degenerate serious, close Shu Jiguang way and expand not convenient problem, a kind of spectrum beam combination system based on three pieces of diffraction grating is proposed.This system reduces the degeneration of beam quality greatly by the dispersion compensation properties of parallel grating, and realizes way expansion more easily by the space structure of three blocks of gratings.
Technical solution of the present invention is as follows:
A kind of spectrum beam combination system based on three pieces of diffraction grating, comprise the seed source of M different wave length, a M fiber amplifier array, a M collimation follower, first piece of diffraction grating, second piece of diffraction grating, the 3rd piece of diffraction grating, level crossing, fourier lense and CCD camera, the position relationship of said elements is as follows: second piece of diffraction grating take wavelength as λ 0li Teluo angle put, first piece of diffraction grating is in the placement in parallel of the upper right side of second piece of diffraction grating, 3rd piece of diffraction grating is in the placement in parallel of the lower right of second piece of diffraction grating, described seed source, fiber amplifier are connected successively with collimation follower and are become the high-power fiber amplifier array of the capable row of M by wave arrangement, and wavelength is less than λ 0high-power fiber amplifier export laser incide first piece of diffraction grating abreast, wavelength is greater than λ 0high-power fiber amplifier export laser incide the 3rd piece of diffraction grating abreast, the diffraction light of the diffraction light of first piece of diffraction grating and the 3rd piece of diffraction grating all forms common aperture laser through second piece of diffraction grating diffraction exports through described level crossing, this level crossing and light path at 45 °, be described fourier lense and CCD camera successively in the folded light beam direction of this level crossing, this CCD camera is positioned at described fourier lense focal plane.
The wave-length coverage of the seed source of described different wave length is at 1040nm-1090nm, and live width is tens of GHz.
First piece of described diffraction grating, second piece of diffraction grating and the 3rd piece of diffraction grating are the uncorrelated multilayer electrolyte reflective diffraction gratings of polarization, and incisure density is every millimeter of 960 grooves.
The front surface of described a slice plane mirror is coated with the high-transmission rate film to laser-transmitting rate 99%, and rear surface is coated with anti-reflection film.
Technique effect of the present invention:
The present invention adopts three pieces of diffraction grating to carry out conjunction bundle to various laser, upper and lower two groups of bigrating structures can be regarded as, bigrating structures can realize certain dispersion compensation, this just greatly reduces the problem that the beam quality caused by the finite linewidth of incident light source is degenerated, this just makes bigrating structures can reduce the requirement of the live width to beamlet, because we know for narrow linewidth high-capacity optical fiber laser, live width directly affects the scattering threshold value of stimulated Brillouin scattering, so relax the requirement of live width, also just mean that the power of beamlet can do more, this involutory bundle technology is highly profitable.Be limited to grating manufacturing process simultaneously, monolithic raster size can not make large especially, under reality, a unlimited collimated light beam can not be had to incide one piece of diffraction grating simultaneously, and the structure of three pieces of diffraction grating exactly can address this problem, beamlets different for wavelength divides and does that upper and lower two parts are parallel respectively incides two pieces of diffraction grating by we, and their diffraction light co-incident on the 3rd block of grating, thus achieves the spectrum beam combination of multichannel light beam.
Three pieces of diffraction grating all adopt quartz substrate, Heat stability is good, and the laser that can bear high power density irradiates, without the need to the cooling system of complexity.
Accompanying drawing explanation
Fig. 1 is the spectrum beam combination system schematic that the present invention is based on three pieces of diffraction grating
Fig. 2 is existing spectrum beam combination system schematic
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
First refer to Fig. 1, Fig. 1 is the spectrum beam combination system schematic that the present invention is based on three pieces of diffraction grating.As seen from the figure, the present invention is based on the spectrum beam combination system of three pieces of diffraction grating, comprise the seed source 101 of M different wave length, a M fiber amplifier array 102, a M collimation follower 103, first piece of diffraction grating 104, second piece of diffraction grating 105, the 3rd piece of diffraction grating 106, level crossing 107, fourier lense 108 and CCD camera 109, the position relationship of said elements is as follows: second piece of diffraction grating 105 take wavelength as λ 0li Teluo angle put, first piece of diffraction grating 104 is in the placement in parallel of the upper right side of second piece of diffraction grating 105,3rd piece of diffraction grating 106 is in the placement in parallel of the lower right of second piece of diffraction grating 105, described seed source 101, fiber amplifier 102 are connected successively with collimation follower 103 and are become the high-power fiber amplifier array of the capable row of M by wave arrangement, and wavelength is less than λ 0high-power fiber amplifier export laser incide first piece of diffraction grating 104 abreast, wavelength is greater than λ 0high-power fiber amplifier export laser incide the 3rd piece of diffraction grating 106 abreast, the diffraction light of the diffraction light of first piece of diffraction grating 104 and the 3rd piece of diffraction grating 106 all forms common aperture laser through second piece of diffraction grating 105 diffraction and exports through described level crossing 107, this level crossing 107 is at 45 ° with light path, be described fourier lense 108 and CCD camera 109 successively in the folded light beam direction of this level crossing 107, this CCD camera 109 is positioned at described fourier lense focal plane.
The wave-length coverage of the seed source 101 of described different wave length is at 1040nm-1090nm, and live width is tens of GHz.
First piece of described diffraction grating, 104, second piece of diffraction grating 105 and the 3rd piece of diffraction grating 106 are the uncorrelated multilayer electrolyte reflective diffraction gratings of polarization, and incisure density is every millimeter of 960 grooves.
Described a slice plane mirror 107 front surface is coated with the high-transmission rate film to laser-transmitting rate 99%, and rear surface is coated with anti-reflection film.
The seed source 101 of described different wave length is divided into two groups according to wavelength, and as shown in Figure 2, one group of wavelength is all less than λ 0, λ n< ... λ 1< λ 0, be positioned at Fig. 2 the first half; Another group wavelength is greater than λ 0, λ m> ... λ n+1> λ 0, be positioned at Fig. 2 the latter half.Wavelength is less than λ 0one group of light beam parallelly incide first piece of diffraction grating 104, be transferred to the same some place of second piece of diffraction grating 105 with different angle of diffraction outgoing, wavelength is greater than λ 0one group of light beam parallelly incide the 3rd piece of diffraction grating 106, be transferred to second piece of diffraction grating 105 with different angle of diffraction outgoing, act on same some place with first group of light beam.According to grating equation, second piece of diffraction grating 105 is to all beam diffractions incided on it, thus the common aperture realizing all beamlets exports, the synthesis beam Propagation exported is to a slice level crossing 107, the light transmission level crossing 107 of 99%, the light of 1% reflects through level crossing 107, is imaged on the CCD camera 109 being positioned at focal plane place by a slice fourier lense 108, thus detects far field synthesis hot spot.
Close with No. four fiber amplifiers the example restrainted below to be described, four road seed source 101 wavelength are respectively 1060nm, 1064nm, 1072nm, 1076nm, first second piece of diffraction grating 105 is put with the Li Teluo angle of 1068nm wavelength laser, according to balzed grating, equation 2d sin θ=λ, can draw for 1064nm wavelength, the diffraction grating of 960 every millimeter, lines, its Li Teluo angle is 30.84 °; Then by first piece of diffraction grating 104 and the 3rd piece of diffraction grating 106 in a distance respectively in second piece of diffraction grating 105 upper right side with lower right is in parallel puts; 1060nm and 1064nm beamlet incides first piece of diffraction grating 104,1072nm and 1076nm beamlet incides the 3rd piece of diffraction grating; Open four road seed sources 101, open No. four fiber amplifiers 102, adjustment collimater 103 makes that each road laser is parallel to be incided on corresponding diffraction grating, the position of intense adjustment three pieces of diffraction grating, makes 1060nm, 1064nm beamlet be applied to the same point of second piece of diffraction grating 105 through the diffraction light of first piece of diffraction grating and 1072nm, 1076nm beamlet through the diffraction light of the 3rd piece of diffraction grating; Level crossing 107 is put with optical axis is at 45 °, the position of intense adjustment fourier lense 108 and CCD camera 109, make to monitor synthesis far field beam hot spot in CCD camera, made the synthesis far field beam hot spot aperture completely altogether in CCD camera by the pH effect element in adjustment light path, thus complete the Spectral beam combining of four road fiber lasers.

Claims (4)

1. the spectrum beam combination system based on three pieces of diffraction grating, be characterised in that comprise M different wave length seed source (101), a M fiber amplifier array (102), a M collimation follower (103), first piece of diffraction grating (104), second piece of diffraction grating (105), the 3rd piece of diffraction grating (106), level crossing (107), fourier lense (108) and CCD camera (109), the position relationship of said elements is as follows: second piece of diffraction grating (105) take wavelength as λ 0li Teluo angle put, first piece of diffraction grating (104) is in the upper right side placement in parallel of second piece of diffraction grating (105), 3rd piece of diffraction grating (106) is in the lower right placement in parallel of second piece of diffraction grating (105), described seed source (101), fiber amplifier (102) are connected successively with collimation follower (103) and are become the high-power fiber amplifier array of the capable row of M by wave arrangement, and wavelength is less than λ 0high-power fiber amplifier export laser incide first piece of diffraction grating (104) abreast, wavelength is greater than λ 0high-power fiber amplifier export laser incide the 3rd piece of diffraction grating (106) abreast, the diffraction light of the diffraction light of first piece of diffraction grating (104) and the 3rd piece of diffraction grating (106) all forms common aperture laser through second piece of diffraction grating (105) diffraction and exports through described level crossing (107), this level crossing (107) is at 45 ° with light path, described fourier lense (108) and CCD camera (109) successively in the folded light beam direction of this level crossing (107), this CCD camera (109) is positioned at described fourier lense focal plane.
2. the spectrum beam combination system based on three pieces of diffraction grating according to claim 1, it is characterized in that the wave-length coverage of the seed source (101) of described different wave length is at 1040nm-1090nm, live width is tens of GHz.
3. the spectrum beam combination system based on three pieces of diffraction grating according to claim 1, it is characterized in that first piece of described diffraction grating (104), second piece of diffraction grating (105) and the 3rd piece of diffraction grating (106) are the uncorrelated multilayer electrolyte reflective diffraction gratings of polarization, incisure density is every millimeter of 960 grooves, and diffraction efficiency is greater than 98%.
4. the spectrum beam combination system based on three pieces of diffraction grating according to claim 1, it is characterized in that the front surface of described level crossing (107) is coated with the high-transmission rate film to laser-transmitting rate 99%, rear surface is coated with anti-reflection film.
CN201510224501.2A 2015-05-05 2015-05-05 Spectral beam combining system based on three diffraction gratings Pending CN104901149A (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105140769A (en) * 2015-09-28 2015-12-09 湖北航天技术研究院总体设计所 Spectral-combined beam overlapping detection and adjustment device
CN105762632A (en) * 2016-05-06 2016-07-13 中国人民解放军国防科学技术大学 High-power laser high-brightness spectrum synthesis system
CN107121782A (en) * 2017-05-26 2017-09-01 武汉光迅科技股份有限公司 A kind of compact multi-wavelength light component and its application method
WO2017197883A1 (en) * 2016-05-18 2017-11-23 上海高意激光技术有限公司 Laser array beam combining device
CN108321677A (en) * 2018-04-28 2018-07-24 上海高意激光技术有限公司 A kind of semiconductor laser beam merging apparatus
DE102017115786A1 (en) * 2017-07-13 2019-01-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optical arrangement and method for generating a combined beam of a plurality of laser light sources
CN110109259A (en) * 2019-04-25 2019-08-09 中国科学院苏州生物医学工程技术研究所 The beam merging apparatus of semiconductor laser high light beam quality high-power output
CN110323672A (en) * 2019-06-27 2019-10-11 苏州长光华芯光电技术有限公司 A kind of Bragg grating outside cavity gas laser module beam merging apparatus and close Shu Fangfa
CN111289987A (en) * 2018-12-06 2020-06-16 深圳市速腾聚创科技有限公司 Laser radar apparatus and laser radar ranging system
CN111854291A (en) * 2020-01-20 2020-10-30 中国科学院上海光学精密机械研究所 Efficient active heat exchange spectrum beam combination grating integrated module and preparation method thereof
WO2020171865A3 (en) * 2018-12-11 2020-12-17 Northrop Grumman Systems Corporation Wavelength-controlled beam stabilizer for spectrally beam combined laser sources
CN112157345A (en) * 2020-09-27 2021-01-01 华夏鲲鹏科技股份有限公司 Multi-wavelength laser beam combining device
CN113794098A (en) * 2021-11-15 2021-12-14 中国工程物理研究院激光聚变研究中心 High-light-beam-quality spectrum beam combining device
CN113794100A (en) * 2021-11-15 2021-12-14 中国工程物理研究院激光聚变研究中心 Two-dimensional spectrum synthesizer
CN114234131A (en) * 2021-11-18 2022-03-25 晶影光学技术(常熟)有限公司 Beam-combining and light-splitting illumination system
CN115096177A (en) * 2022-01-06 2022-09-23 同济大学 Device and method for monitoring laser beam combination system beam by using sub-beam position
CN115629483A (en) * 2022-12-23 2023-01-20 中国航天三江集团有限公司 Two-dimensional array spectrum synthesis device and synthesis method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070229939A1 (en) * 2005-01-26 2007-10-04 Aculight Corporation Method and apparatus for spectral-beam combining of fiber-amplified laser beams using high-efficiency dielectric diffractive gratings
US20080084605A1 (en) * 2006-10-05 2008-04-10 Rothenberg Joshua E Method and system for hybrid coherent and incoherent diffractive beam combining
CN103633548A (en) * 2013-12-13 2014-03-12 山东海富光子科技股份有限公司 Spectrum pulse beam-combining fiber laser device based on volume Bragg gratings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070229939A1 (en) * 2005-01-26 2007-10-04 Aculight Corporation Method and apparatus for spectral-beam combining of fiber-amplified laser beams using high-efficiency dielectric diffractive gratings
US20080084605A1 (en) * 2006-10-05 2008-04-10 Rothenberg Joshua E Method and system for hybrid coherent and incoherent diffractive beam combining
CN103633548A (en) * 2013-12-13 2014-03-12 山东海富光子科技股份有限公司 Spectrum pulse beam-combining fiber laser device based on volume Bragg gratings

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
THOMAS H. LOFTUS ET AL.: "522 W average power, spectrally beam-combined fiber laser with near-diffraction-limited beam quality", 《OPTICS LETTERS》 *
马毅等: "光纤激光共孔径光谱合成实现5kW高效优质输出", 《强激光与粒子束》 *

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CN105140769A (en) * 2015-09-28 2015-12-09 湖北航天技术研究院总体设计所 Spectral-combined beam overlapping detection and adjustment device
CN105140769B (en) * 2015-09-28 2018-06-26 湖北航天技术研究院总体设计所 A kind of Spectral beam combining light beam overlapping detection adjusting apparatus
CN105762632A (en) * 2016-05-06 2016-07-13 中国人民解放军国防科学技术大学 High-power laser high-brightness spectrum synthesis system
CN105762632B (en) * 2016-05-06 2019-06-07 中国人民解放军国防科学技术大学 High power laser high brightness spectrum synthesis system
WO2017197883A1 (en) * 2016-05-18 2017-11-23 上海高意激光技术有限公司 Laser array beam combining device
CN107121782A (en) * 2017-05-26 2017-09-01 武汉光迅科技股份有限公司 A kind of compact multi-wavelength light component and its application method
DE102017115786A1 (en) * 2017-07-13 2019-01-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optical arrangement and method for generating a combined beam of a plurality of laser light sources
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DE102017115786B4 (en) * 2017-07-13 2021-02-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optical arrangement and method for generating a combined beam of several laser light sources
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US11784465B2 (en) 2018-04-28 2023-10-10 Ii-Vi Suwtech, Inc. Semiconductor laser beam combining device
WO2019205500A1 (en) * 2018-04-28 2019-10-31 Ii-Vi Suwtech Inc. Semiconductor laser beam combining device
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WO2020171865A3 (en) * 2018-12-11 2020-12-17 Northrop Grumman Systems Corporation Wavelength-controlled beam stabilizer for spectrally beam combined laser sources
EP4167402A1 (en) * 2018-12-11 2023-04-19 Northrop Grumman Systems Corporation Wavelength-controlled beam stabilizer for spectrally beam combined laser sources
JP7438218B2 (en) 2018-12-11 2024-02-26 ノースロップ グラマン システムズ コーポレーション Wavelength-controlled beam stabilizer for spectrally beam-combined laser sources
US11294193B2 (en) 2018-12-11 2022-04-05 Northrop Grumman Systems Corporation Wavelength-controlled beam stabilizer for spectrally beam combined laser sources
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US11631966B2 (en) 2019-06-27 2023-04-18 Suzhou Everbright Photonics Co., Ltd. Beam combining device and beam combining method for Bragg grating external-cavity laser module
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CN112157345A (en) * 2020-09-27 2021-01-01 华夏鲲鹏科技股份有限公司 Multi-wavelength laser beam combining device
CN113794098A (en) * 2021-11-15 2021-12-14 中国工程物理研究院激光聚变研究中心 High-light-beam-quality spectrum beam combining device
CN113794100A (en) * 2021-11-15 2021-12-14 中国工程物理研究院激光聚变研究中心 Two-dimensional spectrum synthesizer
CN114234131A (en) * 2021-11-18 2022-03-25 晶影光学技术(常熟)有限公司 Beam-combining and light-splitting illumination system
CN115096177A (en) * 2022-01-06 2022-09-23 同济大学 Device and method for monitoring laser beam combination system beam by using sub-beam position
CN115096177B (en) * 2022-01-06 2023-08-04 同济大学 Device and method for monitoring laser beam combining system beam by sub-beam position
CN115629483A (en) * 2022-12-23 2023-01-20 中国航天三江集团有限公司 Two-dimensional array spectrum synthesis device and synthesis method thereof

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Application publication date: 20150909