Emkhakheni wama-laser anamandla amakhulu, imigoqo ye-laser iyizici ezibalulekile ezibalulekile. Azisebenzi nje kuphela njengamayunithi ayisisekelo okukhipha amandla, kodwa futhi zihlanganisa ukunemba nokuhlanganiswa kobunjiniyela besimanje be-optoelectronic.-ukuzitholela isiteketiso: "injini" yezinhlelo ze-laser. Kodwa siyini ngempela ukwakheka kwe-laser bar, futhi iwaletha kanjani amashumi noma amakhulu ama-watts okukhiphayo ukusuka kumamilimitha ambalwa nje ngosayizi? Lesi sihloko sihlola izakhiwo zangaphakathi nezimfihlo zobunjiniyela ezingemuva kwemishayo ye-laser.
1. Iyini Ibha Ye-Laser?
Ibha ye-laser iyisisetshenziswa esikhipha amandla aphezulu esakhiwe ama-chips e-laser diode amaningi ahlelwe eceleni ku-substrate eyodwa. Nakuba isimiso sayo sokusebenza sifana nese-laser ye-semiconductor eyodwa, ibha ye-laser isebenzisa ukwakheka kwe-multi-emitter ukuze kuzuzwe amandla aphezulu okubona kanye nesici sefomu esihlangene kakhudlwana.
Amabha e-laser asetshenziswa kabanzi kuyo yonke imikhakha yezimboni, yezokwelapha, yesayensi, neyokuvikela, njengemithombo ye-laser eqondile noma njengemithombo yephampu yama-fiber lasers nama-solid-state lasers.
2. Ukwakhiwa Kwesakhiwo Sebha Ye-Laser
Isakhiwo sangaphakathi se-laser bar sinquma ngokuqondile ukusebenza kwayo. Ngokuyinhloko iqukethe izingxenye ezibalulekile ezilandelayo:
①I-Emitters Array
Amabha e-laser ngokuvamile aqukethe ama-emitters ayi-10 kuye kwayi-100 (imigodi ye-laser) ehlelwe ngokuhambisana. I-emitter ngayinye icishe ibe ngu-50-150μm ububanzi futhi isebenza njengesifunda sokuzuza ezimele, esihlanganisa ukuhlangana kwe-PN, i-resonant cavity, kanye nesakhiwo se-waveguide ukukhiqiza nokukhipha ukukhanya kwe-laser. Ngenkathi wonke ama-emitters abelana nge-substrate efanayo, ngokuvamile aqhutshwa ngogesi ngokuhambisana noma ngamazoni.
②Isakhiwo Sesendlalelo Semiconductor
Enhliziyweni ye-laser bar kunenqwaba yezendlalelo ze-semiconductor, okuhlanganisa:
- Uhlobo lwe-P kanye nezingqimba ze-epitaxial zohlobo lwe-N (zakha ukuhlangana kwe-PN)
- Isendlalelo esisebenzayo (isb., isakhiwo somthombo we-quantum), esikhiqiza ukukhishwa okukhuthazwayo
- Isendlalelo se-Waveguide, siqinisekisa ukulawulwa kwemodi eziqondisweni ezisemaceleni nezime mpo
- Izibonisi ze-Bragg noma izimbotshana ze-HR/AR, ezithuthukisa ukuphuma kwe-laser okuqondisayo
③I-Substrate kanye neSakhiwo Sokulawula Okushisayo
Ama-emitters atshalwa ku-monolithic semiconductor substrate (imvamisa ama-GaAs). Ukuze kuncishiswe ukushisa okusebenzayo, ibha ye-laser idayiswa ezintweni ezisezingeni eliphezulu ezifana nethusi, ingxubevange ye-W-Cu, noma idayimane le-CVD, futhi ibhangqwe namasinki okushisa namasistimu okupholisa asebenzayo.
④I-Emission Surface kanye ne-Collimation System
Ngenxa yokwehluka kwama-engeli amakhulu wemishayo ekhishiwe, amabha e-laser ngokuvamile afakwe ama-micro-lens arrays (FAC/SAC) ukuze ahlangane kanye nokubunjwa kwe-beam. Kwezinye izinhlelo zokusebenza, ama-optics angeziwe-njengamalensi angamacylindrical noma amaprism-zisetshenziselwa ukulawula ukuhlukana kwezindawo ezikude kanye nekhwalithi ye-beam.
3. Izinto Ezibalulekile Zesakhiwo Ezinomthelela ekusebenzeni
Isakhiwo se-laser bar sidlala indima ebalulekile ekunqumeni ukuzinza, ukusebenza kahle, kanye nempilo yesevisi. Izici ezibalulekile ezimbalwa zifaka:
①I-Thermal Management Design
Amabha e-laser afaka ukuminyana kwamandla aphezulu nokushisa okugxilile. Ukumelana nokushisa okuphansi kubalulekile, kufinyelelwa nge-AuSn soldering noma i-indium bonding, kuhlanganiswe nokupholisa i-microchannel ukuze kukhishwe ukushisa okufanayo.
②Ukubunjwa kwe-Beam nokuqondanisa
Ama-emitters amaningi ngokuvamile ahlushwa ukuhlangana okubi nokungaqondani kahle kwe-wavefront. Idizayini yelensi enembile nokuqondanisa kubalulekile ukuze kuthuthukiswe ikhwalithi yogongolo lwenkundla ekude.
③Ukulawula Ukucindezeleka Nokwethembeka
Ukungafani kokubalulekile kuma-coefficients anwebekayo ashisayo kungase kuholele ekungqubuzaneni noma ekuqhekekeni okuncane. Ukupakisha kufanele kuklanyelwe ukusabalalisa ukucindezeleka komshini ngokulinganayo futhi kumelane nokuhamba ngebhayisikili okushisayo ngaphandle kokuwohloka.
4. Amathrendi Esikhathi esizayo ku-Laser Bar Design
Njengoba isidingo samandla aphezulu, usayizi omncane, nokuthembeka okukhulu kukhula, izakhiwo zebha ye-laser ziyaqhubeka nokuvela. Izikhombisi-ndlela eziyinhloko zokuthuthukisa zifaka:
①Ukunwetshwa kwe-Wavelength: Inwebela ku-1.5μm naphakathi kwe-infrared bands
②I-Miniaturization: Ivumela ukusetshenziswa kumadivayisi ahlangene namamojula ahlanganiswe kakhulu
③I-Smart Packaging: Ihlanganisa izinzwa zokushisa namasistimu empendulo yesimo
④I-High-Density Stacking: Amalungu afanayo anezendlalelo ukuze afinyelele okukhiphayo kwezinga le-kilowatt endaweni ehlangene
5. Isiphetho
Njengoba i“inhliziyo”wezinhlelo ze-laser ezinamandla amakhulu, ukwakheka kwesakhiwo semigoqo ye-laser kuthonya ngokuqondile ukusebenza kokubona, ugesi, kanye nokusebenza okushisayo kwesistimu iyonke. Ukuhlanganisa inqwaba yama-emitters esakhiweni esingamamilimitha nje ububanzi akubonisi nje izinto ezithuthukisiwe nezindlela zokwenza, kodwa futhi kumelela izinga eliphezulu lokuhlanganisa namuhla.'s imboni yezithombe.
Uma sibheka phambili, njengoba isidingo semithombo ye-laser esebenza kahle, enokwethenjelwa siqhubeka nokwanda, ukusungulwa kwesakhiwo sebha ye-laser kuzohlala kungumshayeli oyinhloko ekuthuthukiseni imboni ye-laser ibe phezulu.
Uma u'futhi ufuna ukwesekwa kochwepheshe ekufakweni kwebha ye-laser, ukuphatha okushisayo, noma ukukhetha umkhiqizo, zizwe ukhululekile ukuxhumana nathi. Thina'ngilapha ukuze unikeze izixazululo ezifanelana nezidingo zakho zohlelo lokusebenza.
Isikhathi sokuthumela: Jul-02-2025