Njengoba izicelo ze-laser ezinamandla amakhulu ziqhubeka nokwanda, imigoqo ye-laser diode isibaluleke kakhulu ezindaweni ezifana nokumpompa nge-laser, ukucutshungulwa kwezimboni, okokusebenza kwezokwelapha, kanye nocwaningo lwesayensi. Ngokuminyana kwawo okuhle kakhulu kwamandla, ukunwebeka kwe-modular, kanye nokusebenza kahle okuphezulu kwe-electro-optical, lawa madivayisi ayisisekelo sezinhlelo eziningi zesimanje ze-laser. Nokho phakathi kwezinkomba eziningi zokusebenza zebha ye-laser diode, ipharamitha eyodwa ivamise ukunganakwa kodwa ibaluleke kakhulu: i-divergence angle. Lesi sihloko sihlola izici, umsuka womzimba, nemithelela ye-engeli yokuhluka kumabha we-laser diode—nokuthi umklamo obonakalayo ungawuphatha kanjani ngempumelelo.
1. Iyini i-Divergence angle?
I-divergence angle ichaza ukuthi i-laser beam esabalala kanjani njengoba isakazeka endaweni ekhululekile. Ibonisa izinga lapho i-beam inweba khona kusukela ku-emission facet. Kumabha e-laser diode, i-divergence angle ibonisa i-asymmetry eqinile ngezindlela ezimbili eziyinhloko:
I-Axis Esheshayo: I-Perpendicular to the surface bar. Indawo ekhishwayo incane kakhulu (imvamisa i-1–2 µm), okuholela kuma-engeli amakhulu wokuhlukana, ngokuvamile angu-30°–45° noma ngaphezulu.
I-Slow Axis: Ihambisana nobude bebha. Isifunda esikhishwa yizintuthwane sibanzi kakhulu (amakhulu ama-microns), okuholela kuma-engeli amancane okuhlukana, ngokuvamile azungeze u-5°–15°.
Lokhu kwehluka kwe-asymmetric kuyinselelo enkulu yokuklama yokuhlanganiswa kwesistimu okubandakanya imigoqo ye-laser diode.
2. Umsuka Ongokoqobo Wokwehlukana
I-engeli yokuhluka inqunywa ngokuyinhloko isakhiwo se-waveguide kanye nosayizi wesici sokukhishwa:
Ku-axis esheshayo, indawo ekhishwayo incane kakhulu. Ngokusho kwe-diffraction theory, ama-apertures amancane aholela ekuhlukeni okukhulu.
Ku-eksisi ehamba kancane, i-beam inwebeka ngobude bebha kuma-emitter amaningi, okuholela ku-engeli encane yokuhluka.
Njengomphumela, amabha e-laser diode akhombisa ngokwemvelo ukwehluka okuphezulu ku-eksisi esheshayo kanye nokwehlukana okuphansi ku-eksisi ehamba kancane.
3. Ukuthi I-Divergence Angle Ithinta Ukuklama Kwesistimu
① Izindleko Eziphezulu Zokuhlanganisa Nokubunjwa Kwe-Beam
Ngenxa ye-asymmetry ephezulu ye-beam eluhlaza, i-FAC (Fast Axis Collimation) kanye ne-SAC (Slow Axis Collimation) kufanele isetshenziswe. Lokhu kwandisa inkimbinkimbi yesistimu futhi kudinga ukunemba okuphezulu kokufakwa nokuzinza kwe-thermal.
② Ukusebenza Kahle Kwe-Fiber Coupling Elinganiselwe
Lapho uhlanganisa imigoqo ye-laser ibe imicu ye-multimode, amasistimu okukhanya, noma amalensi aspheric, ukwehluka okukhulu kwe-axis esheshayo kungaholela “ekuchithekeni kwe-beam,” kunciphisa ukusebenza kahle kokuhlanganisa. I-Divergence ingumthombo omkhulu wokulahleka kwe-optical.
③ Ikhwalithi ye-Beam ku-Module Stacking
Kumamojula anamabha amaningi astakiwe, ukwehlukana okungalawulwa kahle kungabangela ukugqagqana okungalingani kwe-beam noma ukuhlanekezela kwenkundla ekude, kuthinte ukunemba okugxilile nokusabalalisa okushisayo.
4. Indlela Yokulawula Nokuthuthukisa Ukuhlukana Kumabha e-Laser Diode
Nakuba ukwehlukana kuchazwa kakhulu ukwakheka kwedivayisi, amasu amaningana ezingeni lesistimu angasetshenziswa ukuze kulungiselelwe:
①Ukusetshenziswa kwamalensi e-FAC
Ukubeka ilensi yokuhlanganisa i-axis esheshayo eduze ne-facet ephumayo kucindezela ugongolo futhi kunciphisa ukuhlukana ku-eksisi esheshayo—lokhu kubalulekile emiklamweni eminingi.
②Amalensi e-SAC Wokubunjwa Okungeziwe
Nakuba ukuhlukana kwe-eksisi ehamba kancane kukuncane, ukubumba kusadingeka kumalungu afanayo noma emithonjeni yokukhanya komugqa ukuze kuzuzwe okukhiphayo okufanayo.
③I-Beam Combining kanye ne-Optical Shaping Design
Ukusebenzisa ama-lens ama-micro-lens, amalensi ayisilinda, noma ama-optics ahlelekile angasiza ekulolongeni imishayo ye-laser eminingi ibe ukukhanya okuphezulu, okuphumayo okufanayo.
④Ukuthuthukisa I-Waveguide Yezinga Ledivayisi
Ukulungisa ukujiya kwesendlalelo esisebenzayo, idizayini ye-waveguide, kanye nezakhiwo ze-grating kungaqhubeka nokwenza ngcono ukwehlukana kwe-eksisi esheshayo ukusuka kuleveli ye-chip.
5. Ukulawula Ukwehlukana Kuzinhlelo Zokusebenza Zomhlaba Wangempela
①Imithombo Yephampu Laser
Kumasistimu anamandla aphezulu okuqinile noma i-fiber laser, amabha e-laser diode asebenza njengemithombo yepompo. Ukulawula ukwehlukana—ikakhulukazi ku-eksisi esheshayo—kuthuthukisa ukusebenza kahle kokuhlanganisa nokugxila kwe-beam.
②Amadivayisi Ezokwelapha
Kuzinhlelo ezifana nokwelashwa nge-laser nokususwa kwezinwele, ukuphatha ukwehlukana kuqinisekisa ukulethwa kwamandla okufanayo kanye nokwelashwa okuphephile, okusebenza ngempumelelo.
③I-Industrial Material Processing
Ekushiseleni nasekusikeni kwe-laser, ukuhlukana okuthuthukisiwe kunomthelela ekukhuleni kwamandla aphezulu, ukugxila okungcono, nokucubungula okunembe kakhudlwana, okuphumelelayo.
6. Isiphetho
I-engeli yokuhluka yebha ye-laser diode iyindawo ebalulekile yoshintsho—kusuka ku-micro-scale chip physics kuya kumasistimu okubona esikalini esikhulu.
Isebenza njengenkomba yekhwalithi ye-beam kanye nomngcele wokuklama wokuhlanganiswa. Njengoba izimfuno zohlelo lokusebenza nobunkimbinkimbi besistimu buqhubeka bukhuphuka, ukuqonda nokulawula ukwehlukana kuba ikhono eliwumgogodla kubakhiqizi be-laser nabadidiyeli ngokufanayo—ikakhulukazi ukuqhubekela phambili emandleni aphezulu, ukukhanya, nokwethembeka.
Isikhathi sokuthumela: Jul-14-2025