Icyitonderwa cyo guhitamo laser ya fiber imwe

Ifatizo ryo guhitamolaser ya fibre yo mu buryo bumwe
Mu bikorwa bifatika, guhitamo uburyo bumwe bukwiyelaser ya fibrebisaba gupima ibipimo bitandukanye kugira ngo imikorere yayo ihuze n'ibisabwa byihariye mu ikoreshwa, imiterere y'imikorere n'ingengo y'imari. Iki gice kizatanga uburyo bwo guhitamo bufatika bushingiye ku bisabwa.
Ingamba zo guhitamo zishingiye ku buryo bwo gukoresha
Ibisabwa mu mikorere yaimirasire ya laserbiratandukanye cyane mu bihe bitandukanye byo gukoresha. Intambwe ya mbere mu guhitamo ni ugusobanura neza ibyo porogaramu isaba.
Gutunganya ibikoresho neza no gukora micro-nano: Muri ubwo buryo harimo gukata neza, gucukura, gukata semiconductor wafer, gushyiraho ikimenyetso cya micron no gucapa mu buryo bwa 3D, nibindi. Bifite ibisabwa cyane ku bwiza bw'imirasire n'ingano y'ahantu hashyizwemo. Laser ifite factor ya M² hafi ya 1 (nka <1.1) igomba gutoranywa. Ingufu zisohoka zigomba kugenwa hashingiwe ku bunini bw'ibikoresho n'umuvuduko wo kubitunganya. Muri rusange, ingufu ziva kuri watts icumi kugeza ku magana zishobora kuzuza ibisabwa na micro-processing nyinshi. Ku bijyanye n'uburebure bw'umurambararo, 1064nm ni yo mahitamo meza ku bikoresho byinshi by'icyuma bitewe n'uko ifite umuvuduko mwinshi wo kwinjiza ibintu ndetse n'igiciro gito kuri watts imwe y'ingufu za laser.
Ubushakashatsi bwa siyansi n'ibipimo byo mu rwego rwo hejuru: Ingero z'ikoreshwa zirimo utubuto tw'ijisho, fiziki y'atome ikonje, spectroscopy ifite ubushobozi bwo hejuru na interferometry. Ubusanzwe utu duce dukurikirana cyane monochromaticity, frequency stability n'imikorere y'urusaku rwa lasers. Modeli zifite linewide rito (ndetse na single frequency) n'urusaku rwo hasi zigomba guhabwa umwanya wa mbere. Ubunini bw'umurambararo bugomba gutoranywa hashingiwe ku murongo wa resonance wa atome cyangwa molekile runaka (urugero, 780nm ikunze gukoreshwa mu gukonjesha atome za rubidium). Umusaruro wo kubungabunga bias ubusanzwe ni ngombwa mu igerageza ryo kubangamira. Ubusanzwe ingufu zikenerwa ntabwo ari nyinshi, kandi milliwatts amagana menshi kugeza kuri watts nyinshi akenshi zirahagije.
Ubuvuzi n'ikoranabuhanga rya bio: Ikoreshwa ririmo kubaga amaso, kuvura uruhu no gupima imiterere y'amaso hakoreshejwe mikorosikopi. Umutekano w'amaso ni wo ugomba kwitabwaho cyane, bityo imirasire ya laser ifite uburebure bwa 1550nm cyangwa 2μm, iri mu gice cy'umutekano w'amaso, ikunze gutoranywa. Ku bijyanye no gusuzuma indwara, hagomba kwitabwaho uburyo ingufu zihamye; Ku bijyanye no kuvura, ingufu zikwiye zigomba gutoranywa hashingiwe ku burebure bw'ubuvuzi n'ingufu zikenewe. Uburyo bworoshye bwo kohereza amashusho ni inyungu ikomeye muri ubwo buryo.
Itumanaho n'Itumanaho: Gupima fibre optique, liDAR n'itumanaho ry'ikirere ni ibintu bisanzwe bikoreshwa. Ibi bintu bisabalaserkugira icyizere cyo hejuru, ubushobozi bwo guhangana n'ibidukikije no kudahungabana igihe kirekire. Umugozi wa 1550nm wabaye amahitamo meza bitewe n'igihombo gito cyane cyo kwanduzanya mu migozi y'urumuri. Ku buryo bwo gutahura buhuza (nk'ubucucike bwa coherent lidar), laser ifite umurongo ugororotse ifite ubugari buto cyane irakenewe nk'icyuma gipima aho uherereye.
2. Gutondekanya ibipimo by'ingenzi byihutirwa
Bitewe n'ibipimo byinshi, ibyemezo bishobora gufatwa hashingiwe ku byihutirwa bikurikira:
Ibipimo by'ingenzi: Ubwa mbere, menya ubwiza bw'uburebure n'ubuziranenge bw'umuraba. Ubunini bw'uburebure bugenwa n'ibisabwa by'ingenzi mu ikoreshwa (imiterere y'ibikoresho, amahame y'umutekano, imirongo ya atome), kandi ubusanzwe nta mwanya wo kubangamira. Ubwiza bw'umuraba bugena mu buryo butaziguye ubushobozi bw'ibanze bwo gukoreshwa. Urugero, gutunganya neza ntibishobora kwakira lazeri zifite M² nyinshi cyane.
Ibipimo by'imikorere: Icya kabiri, kwita ku ngufu zo gusohora n'ubugari bw'umurongo/polarisation. Ingufu zigomba kuzuza ibisabwa ku rwego rw'ingufu cyangwa ibisabwa mu mikorere myiza y'inganda. Ibiranga ubugari bw'umurongo n'polarisation bigenwa hashingiwe ku nzira yihariye y'inganda (nk'uko hari ukwivanga cyangwa gukuba inshuro ebyiri). Ibipimo ngiro: Hanyuma, tekereza ku guhagarara (nk'uguhagarara kw'ingufu zo gusohora igihe kirekire), kwizera (igihe cyo gukora nta makosa), ikoreshwa ry'ingufu, uburinganire bw'imiyoboro n'igiciro. Ibi bipimo bigira ingaruka ku ngorane zo guhuza hamwe n'ikiguzi cyose cyo gutunga laser mu kazi nyako.

3. Guhitamo no guhitamo hagati y'uburyo bumwe n'uburyo bwinshi
Nubwo iyi nkuru yibanda ku buryo bumwelaser za fibre, ni ngombwa gusobanukirwa neza akamaro ko guhitamo uburyo bumwe mu guhitamo nyabwo. Iyo ibisabwa by'ingenzi muri porogaramu ari ugukora neza cyane, agace gato gafite ingaruka ku bushyuhe, ubushobozi bwo kwibanda ku kintu cyose cyangwa intera ndende yo kohereza, laser ya fiber ya mode imwe ni yo yonyine ikwiye. Ku rundi ruhande, niba ikoreshwa rikubiyemo gusudira plate nini, gutunganya ubuso bunini cyangwa kohereza ingufu nyinshi intera ngufi, kandi ibisabwa byose byo gukora neza bitari hejuru, laser ya fiber ya multimode ishobora kuba amahitamo ahendutse kandi afatika bitewe n'imbaraga zayo zose n'igiciro gito.