Fiber Ytterbium laser: qalabka, mabda'a qalliinka, awoodda, wax soo saarka, isticmaalka

laser Fiber yihiin is haysta iyo waarta, sax ah, oo ay fududahay in la kala firdhiso laaluusheen kulaylka. Waxay ku yimaadaan noocyo kala duwan oo badan oo la sameeyo iyada oo laser ah noocyada kale leeyihiin faa'idooyin gaar ah u gaar ah.

laser Fiber: hawlgalka

Qalabka noocan ah waa kala duwanaansho caadiga ah ee ilaha adag-gobolka ee shucaac isku xidhan oo ka fiber ah, halkii usha dheecaan ka shaqeeya, saxan ama disc. Iftiinka ee ay dopant ee qaybta bartamaha ee fiber ah. Qaab-dhismeedka aasaasiga ah dhaxayn karo fudud in ay arrin adag. fiber Ytterbium qalab laser sida in fiber uu leeyahay dusha ballaaran si ratio mugga, si kulaylka xad si fudud loo Taxaabay karo.

laser Fiber yihiin optically gareeyeen, inta badan iyadoo la kaashanayo laser diode, laakiin xaaladaha qaarkood - ilaha isla. Optics loo isticmaalo hababka kuwanu waa sida caadiga ah ka dhigan qaybaha optic, badidooda ama dhan oo iyaga ka mid ku xiran yihiin midba midka kale. Xaaladaha qaarkood, a optics bulk, iyo nidaamka fiber indhaha mararka qaar gudaha waxaa ay weheliso ah optics bulk dibadda.

il bamka diode A waxaa laga yaabaa inay soo diyaariyeen a diode, ama hannaanka ah dioska- shaqsi, kuwaasoo mid walba uu ku xiran yahay in waveguide isku xira fiber optic ah. fiber Doped dhamaadka kasta oo uu leeyahay resonator muraayad dalool a - ku dhaqanka dhigi fiber Bragg shabaggii. At darafyadiisa optics bulk leeyihiin, haddii aan kaliya ku jirase aad wax soo saarka galo wax kale oo aan ahayn fiber. guide iftiinka ayaa laga yaabaa in qaloocdo si haddii la doonayo saabka laser ah ayaa laga yaabaa in dherer ah dhowr mitir.

binuclear

Dunta Qaabdhismeedka loo isticmaalo in laser fiber, waxaa muhiim ah. The ugu caansan waa joomateri ee qaab-dhismeedka dual-muhiimka ah a. core Undoped dibadda ah (oo mararka qaarkood loo yaqaan intima ah) gareeyeen ururiya iftiinka iyo waxa Dardaarmi weheliyaan fiber ah. shucaaca dhiiri ahbaa in fiber ka maraa core gudaha, taas oo inta badan waa hab keli ah. Bu'da gudaha ku jira ytterbium ah daro, ay dhiiri-light bamka. Waxaa jira noocyo badan oo core dibadda noncircular oo ay ku jiraan - hexagonal, D-qaabeeya iyo qaab, yaraynta jaaniska ah qasaariyeen dogobka fudud xudunta dhexe.

laser fiber The yeelan karaan dhamaadka ah ama dhinac shubto. Xaaladdan oo iftiin ugu horeysay ee ka mid ah ama ka badan ilo galo dhamaadka fiber ah. Marka iftiin kooxda shubto la bixisey in splitter a kaas oo cunaa galay core dibadda. Arrintani waxay ka duwan ul laser Halkaas oo iftiinku dadab u galo inuu dhidibka ah.

Waayo, go'aan noocan oo kale ah u baahan tahay wax badan oo horumar ah dhismaha. dareenka badan waxaa la siiyaa koobaya iftiin bamka galay xudunta u ah in ay soo saaraan inversion dadweynaha ah, taasoo keentay in warshadu hawada u shidan ee muhiimka ah iyo barxadda gudaha. core laser laga yaabaa in darajo kala duwan ee cod in fiber ee ku xiran ay qorayeen, iyo sidoo kale on oo dhererkiisu. Arrimahan waxay lagu wadaa sida Injineer design waayo-beegyada uu u baahan yahay a.

xadka Power dhici kara, gaar ahaan marka ka hawlgala gudahood fiber-hal hab a. core a noocan oo kale ah ayaa meel aad u yar cross-qeybaha, iyo natiijada ka ag maraaba iftiin therethrough ee adag mid aad u sarreeya. Marka ay tani waxa ay noqonaysaa jejebinta Brillouin non-toosan inta badan sameysa, kaas oo xaddidaya saarka awoodda dhowr kun oo watts ah. Haddii wax soo saarka waa heer sare ah oo ku filan, dhamaadka fiber la burburay laga yaabaa.

Gaar ahaan laser fiber

Isticmaalka fiber sida dheecaan ka shaqeeya siinayaa dhererka isdhexgal weyn, oo si fiican u shaqeeya marka laga shubto diode ah. Natiijooyinka geometry Tani waxay ku oolnimada sare beddelidda ee photons, iyo sidoo kale dhismaha lagu kalsoonaan karo oo is haysta, taas oo aan lahayn optics Discrete, u baahan in la qabsiga ama in lays.

laser fiber A, kuwaas oo qalab uu ogolaanayaa in ay si fiican u la qabsado, la waafajiyaa kartaa alxanka ee sheets biraha qaro weyn iyo in ay soo saaraan karsado femtosecond. Sammeecado Fiber-optic bixiyaan faa'iido-hal baas oo waxaa loo isticmaalaa in isgaarsiinta, sida ay xoojin kartaa wavelengths badan oo isku mar. faa'iidada kale waxa lagu isticmaalay Sammeecado xoog leh oscillator Masterka. Xaaladaha qaarkood, kordhiyo ee la qalo karaa laser la ruxruxo joogto ah.

Tusaale kale waa il warshadu hawada lama filaan ah ka fiber-xoojinta, taas oo warshadu hawada ku dhiiri u dhigan. Tusaale kale waa laser fiber Raman a weheliso firidhsan kordhay, Milanello si xooga xiirid. Waxa uu codsi laga helo cilmi, halkaas oo isku dhafan ee qarnigan iyo cod la isticmaalayo hal galaas oo fluoride halkii ugu Dunta silica caadiga ah.

Si kastaba ha ahaatee, guud ahaan, fiiloyin ka samaysan tahay quraarad silica la dhif-dhulka dopant ee asaasiga ah. The daro aasaasiga ah waa ytterbium iyo erbium. Ytterbium ayaa wavelengths ka 1030 si ay u 1080 nm, oo dhaadheer laga yaabaa in badan oo kala duwan. Isticmaalka bamka diode 940-nm si weyn u yaraynaysaa hoos u dhaca dhaqaalaha ee photons. Ytterbium uu leeyahay mana saamaynta is-demin ah, kuwaas oo at neodymium at degsiimooyin sare, si dambaysta ah waxaa loo isticmaalaa in laser bulk iyo ytterbium - in fiber (labadaba ay bixiyaan oo ku saabsan Milanello isku mid ah).

Erbium shanqarta ee nm kala duwan 1530-1620, ammaan ah indhaha. inta jeer ee loo Laab laabi karo in ay curiyaan light at 780 nm, taas oo aan la heli karin noocyada kale ee laser fiber. Ugu dambeyntii, ytterbium lagu dari karaa si erbium si element ku nuugaya shucaaca bamka iyo gudbiyaan tamarta si erbium. Thulium - dopant kale in warshadu hawada ee gobolka u dhow infrared, oo sidaas waa ammaan ah sawirada isha.

oolnimada sare

laser fiber waa nidaamka saddex heer quseyo-a. photons bamka Dhectuuro guurka ka gobolka dhulka si lakabka sare. guurka Laser waa ka qaybta ugu hoosaysa heerka sare ee mid ka mid ah dalalka kala dhulka ah. Tani waa mid aad wax ku ool ah, waayo, tusaale ahaan, ytterbium-940 bamka photon nm shanqarta photon la Milanello ee 1030 nm, oo iin ah galmada (khasaaraha tamarta), oo kaliya ku saabsan 9%.

Taas bedelkeeda, neodymium, gareeyeen at 808 nm lumiyo oo ku saabsan 24% ka mid ah tamarta. Sayidka, ytterbium muuqo leedahay oolnimada sare, in kastoo aan dhammaan waxaa ka mid ah waa la gaari la'aan awgeed qaar ka mid ah photons ah. Yb la gareeyeen laga yaabaa in tiro ka mid ah guutooyin noqnoqoshada, iyo erbium - Milanello ee 1480 ama 980 nm. inta jeer ee sare ma aha sida wax ku ool ah marka la eego photons iin, laakiin waxtar leh, xataa haddii ay taasi ku, maxaa yeelay, at 980 nm, ilaha ugu wanaagsan ee la heli karo.

oolnimada Guud ee laser fiber waa natiijada habka laba tallaabo. Marka hore, waa ku oolnimada of diode bamka. Ilo Semiconductor shucaac isku xidhan yihiin oo aad u wax ku ool ah, oo leh 50% oolnimada diinta signal koronto galay indhaha ah. Natiijooyinka waxbarashada shaybaarka soo jeedinaya in ay suurto gal tahay in ay gaaraan qiimo ah 70% ama in ka badan. Iyada oo sax ah wax soo saarka kulan nuugista shucaaca laser fiber line waxaa lagu gaarayaa iyo hufnaan ah shubto sare.

Marka labaad, tan oolnimada diinta indhaha-indhaha. Marka photons iin yar gaari karo heerka sare ah excitation iyo hufnaan ka fiirsato of oolnimada diinta indhaha-indhaha of 60-70% ah. oolnimada The keentay waa in kala duwan oo 25-35% ay.

gaadmada ah ee kala duwan

Fiber galmada matoorrada joogto ah la ruxruxo laga yaabaa in hal ama multimode (hababka transverse). Singlemode soo saari dogob tayo sare leh alaabta, ka shaqeeya ama soo diraya dogob iyada oo jawiga, iyo laser multimode fiber warshadaha ay abuuri karaan awood dheeraad ah. Waxa loo isticmaalaa goynta iyo alxanka, iyo gaar ahaan, si loogu daweeyo kulaylka, halkaas oo aag aad u ballaaran waxaa ciinwaanka.

The laser fiber dheer ku ool ah waa qalab magaabo-joogto ah sida caadiga ah millisecond nooca la karsado dhalin. Sida caadiga ah waa wareegga waajib ku yahay 10%. Tani waxay keenaysaa in awood sare peak badan hab joogto ah (caadi ahaan toban jeer) oo loo isticmaalo, tusaale ahaan, waayo, qoditaanka a pulsed. inta jeer waxaa laga yaabaa in 500 Hz, ku xiran tahay muddada.

Q-Beddelashada in laser fiber sidoo kale u dhaqmo sida in badan ka. A duration caadiga garaaca wadnaha waa in kala duwan ee nanoseconds in microseconds. The dheer fiber ah, ka dheer ay qaadato in Q-Beddelashada shucaac wax soo saarka, taasoo keentay in garaaca wadnaha dheer.

guryaha Fiber yihiin qaar ka mid ah xadeyn ku saabsan isbedbeddelka Q ah. nonlinearity ee laser fiber waa ka weyn, sababtoo ah aagga yar cross-qeybaha kala ee xudunta u ah, si ay awood ugu sarreysa waa in xoogaa kooban. Waxaad isticmaali kartaa mid ka Q shido mugga, kuwaas oo bixiya sare, ama modulators optic, taas oo ku xiran yihiin darafyadiisa oo qayb ka mid firfircoon.

digir Q-wareegay in la maqalka karaa fiber ama resonator saabka. Tusaale ka mid ah dambe waxaa laga heli karaa jilitaanka Qaranka Complex imtixaanada nuclear (NIF, Livermore, CA), halkaas oo laser fiber waa oscillator sayidkiisa for 192 alwaaxdii saqafka ah. digir yar oo ku xir asalkooda sibidhka badan oo muraayad doped maqalka si megajoules.

In laser fiber leh inta jeer soo noq-.Wadashaqayntaas ku xiran tahay dhererka wax xoojinta, sidii hababka kale ee wareeggeedii .Wadashaqayntaas iyo muddada garaaca wadnaha ku xiran tahay awoodda si kor loogu qaado dhex. ugu gaaban waa in kala duwan ee 50 FS, iyo inta badan caadi ah - in kala duwan ee 100 FS.

Inta u dhaxaysa ytterbium iyo fiber erbium, ma jiro wax farqi ah oo muhiim ah oo ay ka hawlgalaan hababka kala duwan kala firidhsan. fiber Erbium-doped saaro at 1550 nm ee gobolka a of kala firidhsan anomalous. Tani waxay u ogolaaneysaa solitons. Itterbievye fiiloyin waa kala firidhsan wanaagsan ama caadiga ah, iyada oo sababtu tahay, waxay dhalin digir la isbedbeddelka inta jeer toosan loogu dhawaaqaa. Sidaas darteed of Bragg shabaggeedii laga yaabaa in ay u baahan tahay in cadaadin dhererka wadnaha.

Waxaa jira siyaabo dhowr ah oo in wax laga beddelo karsado fiber-laser, gaar ahaan waxbarashada ultrafast picosecond. Dunta crystal Photonic la-macmalay karo diirkja aad u yar for saamaynta Fansaarada xoog leh, sida jiilka supercontinuum. Taas bedelkeeda, ka kiristaalo photonic sidoo kale la soo saaray karaa core hal hab oo aad u ballaaran si looga fogaado saamaynta Fansaarada at awoodaha sare.

Debecsan fiber crystal photonic la core weyn abuuray ee codsiyada u baahan awood sare. Mid ka mid ah hababka waa isqaloocinta ula kac ah fiber ah in meesha laga saaro wax kasta oo aan la rabin hababka ugu sareeya iyadoo la sii hab transverse aasaasi ah. The non-linearity abuuraa harmonics; iyo kalagoynta inta jeer ee laabanto, waxaad samayn kartaa a wavelengths gaaban oo dheer. saamaynta Fansaarada aan sidoo kale soo saari kartaa riixo garaaca, taas oo keenta in ay shanlooyinka inta jeer u saftay.

Isha supercontinuum sida digir aad u gaaban soo saaraan qaybaha kala joogto ah iyada oo loo marayo isbedbeddelka wajiga. Tusaale ahaan, ka hore 6 karsado Sabuurka ee 1050 nm, taas oo spectrum laser fiber ytterbium ka helay ee kala duwan ee ka dhaca loolalka sare in ka badan 1600 nm. Ilo kale oo il erbium-supercontinuum IR-gareeyeen ee Milanello a of 1550 nm.

awood sare

Industry haatan macaamiisha ugu badan ee laser fiber. In baahida weyn ee hadda jecel yahay xoogga amarka kilowatts isticmaalo suuqa baabuurta. suuqa baabuurta guurayaan xagga wax soo saarka ee baabuurta steel-xoog sare si ay ula kulmaan shuruudaha cimri dherer iyo waa ay sahlan tahay in dhaqaalaha shidaalka weyn. qalabka mashiinka caadiga ah waa mid aad u adag, tusaale ahaan, feeraan godad ee noocan ah ee steel iyo ilaha shucaaca taxan dhigo mid fudud.

Goynta laser fiber biraha, noocyada kale ee matoor galmada marka la barbar dhigo waxa uu leeyahay tiro ka mid ah faa'iidooyinka. Tusaale ahaan, waveband dhow-infrared si fiican u nuugo birta. Dogobka loo dhiibi karaa iyada oo fiber ah, kaas oo u ogolaanaya robot ah si fudud ugu guuraan diiradda markii jarida iyo qodista.

fiber indhaha dhergiyaa shuruudaha ugu sareeya waayo, xoog. Hubka US Navy, tijaabiyey ee 2014, waxay ka kooban tahay 6-fiber a laser 5.5-kilowatt isugu daray hal dogob iyo radiating sii marayo Nidaamka indhaha u sameynta. 33 unit kw waxaa loo isticmaali jiray in laga adkaado gaari waadin. Inkastoo dogobka ma aha hal-hab, nidaamka waa oo xiiso leh, sida ay u ogolaanaya in la abuuro laser fiber gacmahooda ka soo baxay oo caadiga ah, maaddooyinka sahlan loo heli karo.

awooda hal-hab Ilaha ugu sareeya iftiin ishaysata ee IPG Photonics waa 10 kw. oscillator sayidkayga ayaa soo saarta watt ah awoodda indhaha, kaas oo bixisey in kordhiyo stage gareeyeen at 1018 nm iftiinka of laser kale fiber. Nidaamka oo dhan uu leeyahay size a of laba qaboojiyeyaasha.

Isticmaalka laser fiber ayaa sidoo kale kordhiyay in goynta awood sare iyo alxanka. Tusaale ahaan, waxay bedelay iska caabin ah alxanka sheet bir xalinta dhibaatada lahayo ku ah waxyaabaha la. control Power iyo xuduudaheedu kale ogolaanaya gooladaha goynta aad u sax ah, gaar ahaan geesood.

The laser fiber multimode ugu awooda badan - waayo, soo saaraha isku jarjaraya Biraha - ilaa 100 kw. Nidaamka wuxuu ku salaysan yahay isku-dar ah ku jirase aad ka baaqsiga, sidaas darteed ma ahan super dogob oo tayo sare leh. caabin Taas ayaa ka dhigaysa laser fiber soo jiidasho for warshadaha.

qodista la taaban karo

Multimode saarka fiber laser of 4 kw loo isticmaali karaa goynta iyo qodista la taaban karo. Maxay sameeyaan? Marka injineero ayaa isku dayaya in ay gaaraan iska caabin seismic dhismayaasha hadda jira, si aad uga taxadar leh la taaban karo ah. Marka lagu rakibay waxaa ku jira, sida xoojinta steel qodista durbaanka caadiga ah waxay keeni kartaa ayna duleella oo wiiqi la taaban karo, laakiin laser fiber gooyay oo aan u burburin.

Laser la fiber Q-wareegay loo isticmaalo tusaale ahaan calaamadeynta ama soo saaridda of korantada Semiconductor. Waxaa sidoo kale loo isticmaalaa in raadiyayaal kala duwan: modules waa size ee gacan ku jira laser fiber il-ammaan ah, kuwaas oo wax soo saarka waa 4 kw, inta jeer ee 50 Khz iyo muddada garaaca wadnaha of 5-15 NS ah.

daaweynta dusha

Waxaa jira xiiso weyn ee laser fiber yar micro iyo nanoprocessing. Marka ay ka saareen daaha dusha sare, haddii muddada garaaca wadnaha way ka gaaban tahay 35 Sabuurka, wax ku xereen lahayn. Tani waxay ka hortagtaa formation of dimples iyo artifacts kale aan loo baahnayn. karsado ee taliskii femtosecond soo saaro saamaynta Fansaarada aan u nugul yihiin Milanello iyo degaanka ku hareereysan ma aha kulul, jidaynayey si ay u shaqeeyaan iyada oo aan dhaawac la taaban karo, ama itaal darro deegaannada ku xeeran. Intaa waxaa dheer, godad laga gooyaa laga yaabaa in la qoto dheer sare si ay width - tusaale ahaan, si deg deg ah godad yar yar 1 mm isticmaalaya ahama ah digir 800-FS la soo noqnoqoshada ah 1 MHz (gudahood ah rabtay yar).

Sidoo kale waa suurto gal ah in ay soo saaraan alaabta hufan dusha loola dhaqmo, tus, isha aadanaha. Si aad u gooyn sacadda a at microsurgery indhaha, digir femtosecond vysokoaperturnym gashto si adag diirada at hal dhibic dusha sare ee isha hoose oo aan ku keeni karo wax kasta oo waxyeello dushiisa, laakiin isha by baabbi'iyeen wax on qoto dheer gacanta. dusha siman ee wilka, taas oo muhiim u ah aragtida luminayo. sacadda ayaa laga soocay hooseysa, ka dibna waa la kala fujin karo si baxaan laser la xirrira gashto excimer. codsiyada kale ee caafimaadka waxaa ka mid ah qalliin lays-gacmeed ee maqaarka, iyo sidoo kale isticmaalka noocyo ka mid ah si raajito loogu wadashaqaynta indhaha.

laser femtosecond

laser Femtosecond sayniska loo isticmaalo in lagu Dhectuuro spectroscopy ku laser burburka, spectroscopy fluorescence la xal kumeelgaadh ah, iyo sidoo kale cilmi qalabka guud. Intaa waxaa dheer, waxaa loo baahan yahay ay wax soo saarka ee shanlo inta jeer femtosecond loo baahan yahay in METROLOGY iyo waxbarashada guud. Mid ka mid ah codsiyada dhabta ah muddo gaaban noqon doonaa saacadaha qaaradda ee satalayt GPS ee jiil cusub, oo wuxuu korodhsan doonaa sax boos ah.

Single laser fiber inta jeer la sameeyaa iyadoo linewidth a spectral ka yar 1 Khz. Qalabka waxa cajiib ah oo xoog leh oo ah wax soo saarka shucaac yar 10 MW in 1W. Raadiyaa codsiga berrinkii isgaarsiinta, METROLOGY (tus, in gyroscopes fiber) iyo spectroscopy.

Maxaa ku xiga?

Sida codsiyada kale ee cilmi-baarista, waa weli wax badan oo iyaga ka mid ah waxaa lagu bartay. Tusaale ahaan, injineernimada military, kaas oo lagu saleyn karaa meelo kale, taas oo ka kooban in la mideeyo ah alwaaxdii saqafka haysay fiber-laser si aad u hesho dogob sare isticmaalaya isku-ka isku xidhan ama spectral. Sidaas darteed, awood dheeraad ah waxaa lagu gaarayaa in dogob-hal hab a.

Production of laser fiber si degdeg ah u koraya, gaar ahaan baahida warshadaha baabuurta. Sidoo kale, waxaa jira bedelka aaladaha fiber aan buunshada ku. Waxa intaa dheer in horumarka guud ee qiimaha iyo waxqabadka, waxaa jira wax dheeraad ah la taaban karo laser femtosecond iyo ilaha supercontinuum. laser Fiber mashquulin niches dheeraad ah oo ay noqoto il horumar noocyada kale ee laser.