Kwiminyaka yakutshanje, ukusetyenziswa kwe-pulsed fiber lasers kwintsimi yokumakishwa kwe-laser kuphuhliswe ngokukhawuleza, phakathi kwazo izicelo kwiimveliso ze-elektroniki ze-3C, oomatshini, ukutya, ukupakishwa, njl.
Okwangoku, iintlobo zeelaser ze-pulsed fiber ezisetyenziswa ekuphawuleni i-laser kwimarike ikakhulu zibandakanya itekhnoloji ye-Q-switched kunye netekhnoloji ye-MOPA.I-MOPA (i-Master Oscillator Power-Amplifier) i-laser ibhekisela kwisakhiwo se-laser apho i-laser oscillator kunye ne-amplifier zihlanjululwa.Kushishino, i-laser ye-MOPA ibhekiselele kweyodwa kwaye “ekrelekrele” ngakumbi “nanosecond pulse fiber laser” eyenziwe ngumthombo wembewu we-laser semiconductor eqhutywa ziipulses zombane kunye ne-fiber amplifier."Ingqondo" yayo ibonakaliswe ngokukodwa kwi-output pulse width ixhomekeke ngokuzimeleyo (uluhlu lwe-2ns-500ns), kwaye ukuphindaphinda okuphindaphindiweyo kunokuba phezulu njenge-megahertz.Isakhiwo somthombo wembewu ye-Q-switched fiber laser kukufaka imodyuli yokulahleka kwi-fiber oscillator cavity, eyenza ukuphuma kokukhanya kwe-nanosecond pulse kunye nobubanzi be-pulse ethile ngokumodareyitha ngamaxesha athile ilahleko ye-optical in the cavity.
Ubume bangaphakathi be-laser
Umahluko wesakhiwo sangaphakathi phakathi kwe-MOPA ifayibha laser kunye ne-Q-switched ifayibha laser ikakhulu ilele kwiindlela ezahlukeneyo zesizukulwana se-pulse seed light signal.I-MOPA ye-fiber laser pulse seed optical signal yenziwa yi-electric pulse driving semiconductor laser chip, oko kukuthi, umqondiso we-optical ophumayo uhlengahlengiswa ngumqondiso wombane oqhubayo, ngoko yomelele kakhulu ekuveliseni iiparameters zepulse ezahlukeneyo (ububanzi bepulse, ukuphindaphinda ukuphindaphinda). , i-pulse wave kunye namandla, njl. njl.) Ukuguquguquka.I-pulse seed optical signal ye-Q-switched fiber laser yenza i-pulsed light output ngokunyusa ngezikhathi ezithile okanye ukunciphisa ilahleko ye-optical kwi-cavity ye-resonant, kunye nesakhiwo esilula kunye nenzuzo yexabiso.Nangona kunjalo, ngenxa yempembelelo yezixhobo zokutshintsha i-Q, iiparamitha ze-pulse zinezithintelo ezithile.
Iiparamitha zokukhanya eziphumayo
MOPA ifayibha laser output pulse ububanzi ngokuzimeleyo adjustable.Ububanzi be-pulse ye-MOPA fiber laser inakho nakuphi na ukunyamezela (uluhlu lwe-2ns～500 ns).Ukunciphisa ububanzi be-pulse, encinci indawo echaphazelekayo ukushisa, kunye nokuchaneka okuphezulu kokusebenza kunokufumaneka.Ububanzi be-pulse ye-Q-switched fiber laser ayinakuguqulwa, kwaye ububanzi be-pulse buhlala buhlala buhlala kwixabiso elithile elimiselweyo phakathi kwe-80 ns kunye ne-140 ns.I-MOPA ifayibha laser inoluhlu olubanzi lokuphindaphinda amaza.I-re-frequency ye-MOPA laser inokufikelela kwi-high frequency output ye-MHz.Uphinda-phindo oluphezulu lokuphindaphinda luthetha ukusebenza kakuhle okuphezulu, kwaye i-MOPA isenokugcina iimpawu eziphezulu zamandla phantsi kweemeko zokuphindaphinda okuphakamileyo.I-laser ye-fiber etshintshiweyo ye-Q inqunyelwe yimiqathango yokusebenza yokutshintsha kwe-Q, ngoko ke uluhlu lwe-frequency ye-output luncinci, kwaye i-frequency ephezulu inokufikelela kuphela kwi- ~ 100 kHz.
Imeko yesicelo
I-MOPA ifayibha laser inoluhlu olubanzi lohlengahlengiso lweparamitha.Ke ngoko, ukongeza ekugqumeni usetyenziso lweelaser zenanosecond eziqhelekileyo, inokusebenzisa ububanzi bayo obumxinwa obumxinwa, ukuphindaphinda okuphindaphindiweyo, kunye namandla aphezulu aphezulu ukufezekisa usetyenziso oluchanekileyo olulodwa.njenge:
1.Ukusetyenziswa kwephepha le-aluminiyam oxide sheet
Iimveliso ze-elektroniki zanamhlanje ziyancipha kwaye zikhaphukhaphu.Iifowuni ezininzi eziphathwayo, iitafile, kunye neekhompyuter zisebenzisa i-aluminium oxide encinci kwaye ilula njengeqokobhe lemveliso.Xa usebenzisa i-laser ye-Q-switched ukuphawula izikhundla zokuqhuba kwi-plate ye-aluminium encinci, kulula ukubangela ukuguqulwa kwezinto eziphathekayo, okubangelwa "i-convex hulls" ngasemva, echaphazela ngokuthe ngqo i-aesthetics yembonakalo.Ukusetyenziswa kweparamitha yobubanzi obuncinci be-laser ye-MOPA inokwenza ukuba imathiriyeli ingabi lula ukuyikhubaza, kwaye umthunzi ubuthathaka kwaye uqaqambe ngakumbi.Oku kungenxa yokuba i-laser ye-MOPA isebenzisa iparamitha yobubanzi obuncinci ukwenza ukuba i-laser ihlale kwinto emfutshane, kwaye inamandla awoneleyo okususa umaleko we-anode, ukuze kusetyenzwe ukuhluba i-anode kumphezulu we-aluminium oxide obhityileyo. ipleyiti, MOPA Lasers lukhetho olungcono.
2.I-Aluminiyam efakwe i-aluminiyam efakwe mnyama isicelo
Ukusebenzisa i-laser ukuphawula iimpawu zokuthengisa ezimnyama, iimodeli, iitekisi, njl. ebusweni bezinto ze-aluminium anodized, endaweni ye-inkjet yendabuko kunye ne-silk yesikrini sobuchwepheshe, isetyenziswe ngokubanzi kumaqokobhe emveliso yedijithali.
Ngenxa yokuba i-MOPA pulsed fiber laser inobubanzi obubanzi be-pulse kunye noluhlu lokuphindaphinda uhlengahlengiso lokuphindaphinda, ukusetyenziswa kobubanzi obumxinwa be-pulse kunye neeparamitha eziphezulu zefrikhwensi inokuphawula umphezulu wento ngesiphumo esimnyama.Iindibaniso ezahlukeneyo zeeparamitha zinokuphawula amanqanaba angwevu ahlukeneyo.isiphumo.
Ke ngoko, inokhetho olungakumbi lweziphumo zenkqubo yobumnyama obahlukeneyo kunye nokuziva kwesandla, kwaye ngumthombo wokukhanya okhethwayo wokwenza mnyama i-anodized aluminium kwimarike.Ukumakisha kwenziwa ngeendlela ezimbini: imowudi yechaphaza kunye namandla amachaphaza alungelelanisiweyo.Ngokuhlengahlengisa ukuxinana kwamachaphaza, iziphumo ezahlukeneyo zegreyscale zinokulinganiswa, kwaye iifoto ezilungelelanisiweyo kunye nobugcisa bomntu bunokuphawulwa kumphezulu wemathiriyeli ye-anodized aluminiyam.
3.Ukumakishwa kwelaser kombala
Kwisicelo sombala wensimbi engenasici, i-laser iyadingeka ukuba isebenze kunye nobubanzi obuncinci kunye nobubanzi be-pulse kunye nee-frequencies eziphezulu.Ukutshintsha kombala kuchaphazeleka ikakhulu ngamaza kunye namandla.Umahluko kule mibala uchaphazeleka ikakhulu ngamandla epulse enye yelaser ngokwayo kunye nesantya sokugqithelana kwendawo yayo kwizinto eziphathekayo.Ngenxa yokuba ububanzi be-pulse kunye nokuphindaphinda kwe-laser ye-MOPA zilungelelaniswa ngokuzimeleyo, ukulungelelanisa enye yazo akuyi kuchaphazela ezinye iiparitha.Basebenzisana kunye ukuze bafezekise amathuba ahlukeneyo, angenakukwazi ukufezekiswa nge-laser ye-Q-switched.Kwizicelo ezisebenzayo, ngokulungelelanisa ububanzi be-pulse, frequency, amandla, isantya, indlela yokuzalisa, isithuba sokuzalisa kunye nezinye iiparamitha, ukuvumela kunye nokudibanisa iiparamitha ezahlukeneyo, unokumakisha ngaphezulu kwemibala yayo, imibala etyebileyo kunye nethambileyo.Kwi-tableware yensimbi engenasici, izixhobo zonyango kunye nemisebenzi yezandla, iilogo ezintle okanye iipateni zinokumakishwa ukuze zidlale umphumo omhle wokuhombisa.
Ngokubanzi, ububanzi be-pulse kunye nokuphindaphinda kwe-MOPA fiber laser zilungelelaniswa ngokuzimeleyo, kwaye uluhlu lweparameter yohlengahlengiso lukhulu, ngoko ke ukulungiswa kulungile, umphumo we-thermal uphantsi, kwaye unenzuzo ebalaseleyo kwi-aluminium oxide sheet marking, i-aluminium anodized. mnyama, kunye nombala wensimbi engenasici.Qonda isiphumo sokuba i-laser ye-Q-switched fiber ayinakukwazi ukufikelela I-Q-switched fiber laser ibonakaliswe ngamandla anamandla okumakisha, aneenzuzo ezithile ekusetyenzweni okunzulu kweentsimbi, kodwa umphumo wokumakisha unzima.Kwizicelo zokumakisha eziqhelekileyo, i-MOPA pulsed fiber lasers ithelekiswa ne-Q-switched fiber lasers, kwaye iimpawu zabo eziphambili ziboniswa kwitheyibhile elandelayo.Abasebenzisi banokukhetha i-laser efanelekileyo ngokweemfuno zangempela zokumakisha izixhobo kunye nemiphumo.
I-MOPA ifayibha laser pulse ububanzi kunye nobubanzi bulungelelaniswa ngokuzimeleyo, kwaye uluhlu lweparameter yohlengahlengiso likhulu, ngoko ke ukusetyenzwa kulungile, umphumo we-thermal uphantsi, kwaye unenzuzo ebalaseleyo ekuphawulweni kwe-aluminium oxide sheet, i-anodized aluminium emnyama, umbala wentsimbi engenasici, kunye ne-sheet metal welding.Isiphumo sokuba i-Q-switched fiber laser ayikwazi ukufikelela.I-laser ye-Q-switched fiber ibonakaliswe ngamandla anamandla okumakisha, aneenzuzo ezithile ekusetyenzweni okunzulu kwesinyithi, kodwa umphumo wokumakisha urhabaxa.
Ngokubanzi, iilaser ze-MOPA fiber zingaphantse zithathe indawo ye-Q-switched fiber lasers kwi-laser high-end marking and welding applications.Kwixesha elizayo, uphuhliso lwe-MOPA fiber lasers luya kuthatha ububanzi obuncinci be-pulse kunye ne-frequencies ephezulu njengesikhokelo, kwaye kwangaxeshanye imatsha isiya kumandla aphezulu kunye namandla aphezulu, ukuqhubeka nokuhlangabezana neemfuno ezintsha zokusetyenzwa kakuhle kwe-laser, kwaye uqhubeke ukuphuhlisa ezifana laser derusting kunye lidar.Kwaye ezinye iindawo ezintsha zesicelo.
Ixesha lokuposa: Jul-18-2021
