Wamkelekile kwi-Ruijie Laser

I-fiber ye-fiber ye-fiber laser cutting machine luhlobo lwe-laser ye-infrared band ephakathi kunye ne-fiber laser njengento yokusebenza (inzuzo ephakathi).Inokwahlulwa ibe yi-laser ye-doped fiber enqabileyo yomhlaba, i-fiber optical fiber nonlinear effect laser, i-crystal fiber laser enye, i-fiber arc lasers, njl.Phakathi kwazo, i-laser ye-doped fiber lasers enqabileyo ikhule kakhulu, njenge-doped erbium fiber amplifier (EDFA) isetyenziswe ngokubanzi kwiinkqubo zonxibelelwano lwefiber optical.Iilaser zefiber eziphezulu zisetyenziswa ikakhulu emkhosini (ukujongana neefoto zombane, ukubhaqwa kwelaser, unxibelelwano lwelaser, njl.), ukusetyenzwa kwelaser (ukumakishwa kwelaser, irobhothi yelaser, i-laser micromachining, njl.), ezonyango kunye nezinye iinkalo.

I-fiber laser yenziwe yi-SiO2 njengesixhobo se-matrix yeglasi eqinileyo yefiber, umgaqo wesikhokelo sokukhanya kukusebenzisa umgaqo opheleleyo wokubonisa ityhubhu, oko kukuthi, xa ukukhanya kukhutshwa kwi-optical density medium of high refractive. isalathiso kwesinye sesalathiso esincinci se-refractive esine-engile enkulu kune-engile ebalulekileyo, umboniso opheleleyo uya kuvela kwaye ukukhanya kwesiganeko kuya kuboniswa ngokupheleleyo kwi-optical density medium ye-high refractive index.Xa ukukhanya kukhutshwa kwi-optical density medium (oko kukuthi, isalathisi sokukhanya esiphakathi sikhulu) kwi-interface ye-optical sparse medium (oko kukuthi, isalathisi sokukhanya sokukhanya sincinci phakathi), konke ukukhanya kuphinda kubonakaliswe kumbindi wokuqala.Akukho ukukhanya okuza kugqobhoza kuxinaniso oluphakathi olusisisalathisi esincinci sokuqhafaza. Ifayibha engenanto eqhelekileyo idityaniswe nombindi weglasi wesalathiso esiphezulu (udayamitha oyi-4 ~ 62.5μm), isalathiso esiphakathi se-refractive se-silicon yokugqunywa kweglasi (idayamitha engundoqo. 125μm) kunye nentlaka eyomeleziweyo engaphandle.I-Fiber optic mode yokusabalalisa i-fiber optic inokwahlulwa ibe yi-fiber ye-single-mode (SM) kunye ne-multi-mode (MM) fiber.Idayimitha ye-fiber ye-mode enye, ye-diameter encinci ye-core (4 ~ 12μm) inokusasaza imodeli enye yokukhanya kunye ne-mode dispersion encinci.I-Multimode fiber core idayamitha etyebileyo (ububanzi obungaphezulu kwe-50μm) inokusasaza iindlela ezahlukeneyo zokukhanya ngelixa i-intermodal dispersion inkulu.Ngokwezinga lokusabalalisa i-refractive, i-fiber optic inokwahlulwa ibe yi-fiber index (SI) kunye ne-graded index (GI) fiber.

Thatha i-laser ye-doped fiber lasers enqabileyo yomhlaba umzekelo, ifakwe ngamasuntswana omhlaba anqabileyo njengendlela yokuzuza, iintsinga ze-doped zigxininiswe phakathi kwezipili ezibini zenza i-resonant cavity.Ukukhanya kwempompo kuyisiganeko esivela kwi-M1 kwi-fiber kwaye emva koko ivelise i-laser esuka kwi-M2.Xa ukukhanya kwempompo kudlula kwi-fiber, kuthatyathwa yi-ion yomhlaba enqabileyo kwi-fiber kunye ne-electrons zivuyiswa kwinqanaba eliphezulu lokukhupha ukufezekisa ukuguqulwa kwabemi bamasuntswana.Amasuntswana aguquliweyo agqithiselwa ukusuka kwinqanaba eliphezulu lamandla ukuya kwimeko yomhlaba ngendlela yemitha yokuvelisa i-laser.