Ukuphumelela! Amandla aphezulu kakhulu emhlabeni 3 μm maphakathi ne-fembu we-femtosecond fiber laser

Ukuphumelela! Amandla aphezulu kakhulu emhlabeni 3 μm maphakathi ne-infraredI-femtosecond fiber laser

I-fiber laserUkufinyelela okukhishwe kwe-laser-infrared infrared, isinyathelo sokuqala ukukhetha izinto ezifanele ze-matrix. E-Fiber Lasers esondele-infrared, i-Quartz Glass Matrix iyinto evame kakhulu ye-matrix ye-matrix enokulahleka okuphansi kakhulu, amandla athembekile wemishini kanye nokuqina okuhle. Kodwa-ke, ngenxa ye-Phonon Energy ephezulu (ngo-1150 cm-1), i-quartz fiber ayikwazi ukusetshenziselwa ukuhanjiswa kwe-laser-infrared infrared. Ukuze kufinyelelwe ukudluliswa kokulahleka okuphansi kwe-laser ephakathi kwe-infrared, kudingeka siphinde sikhethe ezinye izinto ze-matrix ze-fiber nge-lower phonon energy, njenge-sulfide ingilazi matrix noma i-matrix ye-fluoride glass matrix. I-Sulfide Fiber ene-Phonon Energy Energy ephansi (cishe ngo-350 cm Yize i-fluoride glass substrate ine-phponon energy ephakeme (550 cm-1) kune-substrate ye-sulfide glass substrate, ingakwazi futhi ukufezekisa ukudluliselwa okuphansi kwama-laserth aphakathi kwama-wavelength. Okubaluleke kakhulu, i-fluoride glass substrate ingafinyelela indawo ephakeme yoMhlaba i-Ion doping okuhlushwa, okunganikezwa inzuzo edingekayo yokulondolozwa kwe-laser ephakathi nendawo, isibonelo, i-fluoride zblan fiber evuthiwe kunazo zonke ye-ER3 + ikwazile ukufeza ukugcwala okufika ku-10 mol. Ngakho-ke, i-Fluoride Glass Matrix iyinto efanelekile kakhulu ye-Fibre Matrix ye-Fiber Lasers ephakathi nendawo.

Muva nje, iqembu likaProfessor Shuangchen noProfessor Guo Chunyu eShenzhen University bathuthukisa i-femtosecond ephezulu kakhuluPulse fiber laserIhlanganiswe nge-2.8μm Mode-Locked Er: Zblan Fibre Oscillator, imodi eyodwa
Kususelwa ekucindezelweni nasekunqumelweni kokukhuliswa kwe-Ultra-infrared pulse emunca nge-polarization kanye nemisebenzi yokulinganisa yezinombolo ye-pump yethu yokucwaninga, uhlelo lokulawula imodi ye-mode-shople offical, i-mode etholwa yi-ultra-emfushane yokuphuma, i-active aptines short yokuphuma kwamandla we-8.12 kanye nobubanzi be-pulse 148 FS. Umlando wamazwe omhlaba wamandla aphezulu aphezulu atholakala yileli qembu lokucwaninga waphinde waqabuleka.

Umdwebo ongu-1 wesakhiwo wesakhiwo se-ER: Zblan Fibre Laser ngokususelwa kwisakhiwo se-mopa
Isakhiwo seI-FemMosecond LaserUhlelo luboniswa kuMfanekiso 1. Imodi eyodwa-i-Double-Clad ER: I-zblan fiber of 3.1 m ubude benziwe njenge-foop fiber kwi-doping adventifier nge-7 mol.% kanye ne-0,1.12). Ku-amplifier enkulu, i-Clad Cold Mode Field ER: I-zblan fiber enobude obungu-4 m yayisetshenziswa njenge-inzuzo ye-fiber enokuhlangenwe nakho okungu-6 mol.% Kanye nobubanzi obuyinhloko ye-30. Ububanzi obukhulu obukhulu benza i-Fiber Fiber ibe ne-coefficial engaphansi ye-nonlinear futhi ingamelana namandla aphezulu aphezulu kanye nokuphuma kwamandla okushaya ngamandla amakhulu we-pulse. Zombili iziphetho ze-inzuzo fiber zithathiwe ku-ALF3 Geminal cap.