Ukuqonda Umjikelezo Wemisebenzi Kuma-Laser E-Semiconductor: Incazelo Enkulu Ngemuva Kwepharamitha Encane

Kubuchwepheshe besimanje be-optoelectronic, ama-laser e-semiconductor avelele ngesakhiwo sawo esincane, ukusebenza kahle okuphezulu, kanye nokusabela okusheshayo. Adlala indima ebalulekile emikhakheni efana nokuxhumana, ukunakekelwa kwezempilo, ukucubungula izimboni, kanye nokuzwa/ukuhlukanisa. Kodwa-ke, lapho kuxoxwa ngokusebenza kwama-laser e-semiconductor, ipharamitha eyodwa ebonakala ilula kodwa ebaluleke kakhulu—umjikelezo womsebenzi—ivame ukunganakwa. Lesi sihloko sigxila emqondweni, ekubalweni, emiphumeleni, kanye nokubaluleka okusebenzayo komjikelezo womsebenzi ezinhlelweni ze-laser ze-semiconductor.

1. Uyini Umjikelezo Womsebenzi?

Umjikelezo womsebenzi uyisilinganiso esingenakulinganiswa esisetshenziselwa ukuchaza isilinganiso sesikhathi i-laser ekuso esimweni "sokuvuliwe" phakathi nesikhathi esisodwa sesiginali ephindaphindayo. Ngokuvamile ivezwa njengephesenti. Ifomula ithi: Umjikelezo Womsebenzi = (Ububanzi bePulse/Isikhathi Sokushaya Kwenhliziyo)×100%. Isibonelo, uma i-laser ikhipha i-pulse ye-1-microsecond njalo nge-10 microseconds, umjikelezo womsebenzi uwukuthi: (1 μs/10 μs)×100%=10%.

2. Kungani Umjikelezo Womsebenzi Ubalulekile?

Nakuba kuyisilinganiso nje, umjikelezo womsebenzi uthinta ngqo ukuphathwa kokushisa kwe-laser, isikhathi sokuphila, amandla okukhipha, kanye nomklamo wohlelo lonke. Ake sihlaziye ukubaluleka kwayo:

① Ukuphathwa Kokushisa kanye Nempilo Yedivayisi

Emisebenzini ye-pulsed ephindaphindwayo, umjikelezo womsebenzi ophansi usho izikhathi ezinde "zokungasebenzi" phakathi kwe-pulses, okusiza i-laser ukuthi iphole. Lokhu kuwusizo ikakhulukazi ezinhlelweni zamandla aphezulu, lapho ukulawula umjikelezo womsebenzi kunganciphisa ukucindezeleka kokushisa futhi kwandise impilo yedivayisi.

② Amandla Okukhipha kanye Nokulawula Ukuqina Kokukhanya

Umjikelezo womsebenzi ophezulu uholela ekuphumeni okukhulu kwe-optical okumaphakathi, kanti umjikelezo womsebenzi ophansi unciphisa amandla aphakathi. Ukulungisa umjikelezo womsebenzi kuvumela ukulungiswa kahle kwamandla okukhipha ngaphandle kokushintsha ugesi we-peak drive.

③ Impendulo Yesistimu Nokuguqulwa Kwesignali

Ekuxhumaneni kwe-optical kanye nezinhlelo ze-LiDAR, umjikelezo womsebenzi uthinta ngqo isikhathi sokuphendula kanye nezinhlelo zokuguquguquka. Isibonelo, ekuhlukaniseni kwe-laser evunguzayo, ukusetha umjikelezo womsebenzi ofanele kuthuthukisa ukutholwa kwesignali ye-echo, kuthuthukisa kokubili ukunemba kokulinganisa kanye nemvamisa.

3. Izibonelo Zokusetshenziswa Komjikelezo Womsebenzi

① I-LiDAR (Ukutholwa Nokuhlukaniswa Kwe-Laser)

Kumamojula we-laser angu-1535nm, ukucushwa kwe-pulse yomjikelezo ophansi, enokuphakama okuphezulu kuvame ukusetshenziswa ukuqinisekisa ukutholwa kwebanga elide kanye nokuphepha kwamehlo. Imijikelezo yomthwalo ivame ukulawulwa phakathi kuka-0.1% no-1%, kulinganiswa amandla aphezulu nokusebenza okuphephile nokupholile.

② Ama-Laser Ezokwelapha

Ezinhlelweni ezifana nokwelashwa kwesikhumba noma ukuhlinzwa nge-laser, imijikelezo ehlukene yomsebenzi iholela emiphumeleni ehlukene yokushisa kanye nemiphumela yokwelapha. Umjikelezo womsebenzi ophezulu ubangela ukushisa okuqhubekayo, kanti umjikelezo womsebenzi ophansi usekela ukususwa kwe-pulse okusheshayo.

③ Ukucubungula Izinto Zezimboni

Ekuphawuleni nasekushiseleni nge-laser, umjikelezo womsebenzi uthinta indlela amandla afakwa ngayo ezintweni. Ukulungisa umjikelezo womsebenzi kuyisihluthulelo sokulawula ukujula kokuqopha kanye nokungena kokushisela.

4. Ungayikhetha Kanjani I-Duty Cycle Efanele?

Umjikelezo womsebenzi ofanele uncike ekusetshenzisweni okuthile kanye nezici ze-laser:

①Umjikelezo Womsebenzi Ophansi (<10%)

Kuhle kakhulu ekusetshenzisweni kwe-high-peak, okufushane njengokulinganisa noma ukumaka ngokunemba.

②Umjikelezo Womsebenzi Ophakathi (10%–50%)

Ifanele izinhlelo ze-laser eziphindaphindwayo kakhulu.

③Umjikelezo Womsebenzi Ophezulu (>50%)

Kusondela ekusebenzeni kwamagagasi aqhubekayo (CW), okusetshenziswa ezinhlelweni zokusebenza ezifana nokupompa kwe-optical kanye nokuxhumana.

Ezinye izinto okufanele uzicabangele zihlanganisa ikhono lokushabalalisa ukushisa, ukusebenza kwesekethe yomshayeli, kanye nokuqina kokushisa kwe-laser.

5. Isiphetho

Nakuba incane, umjikelezo womsebenzi uyipharamitha ebalulekile yokuklama ezinhlelweni ze-laser ze-semiconductor. Akuthinti nje kuphela umkhiqizo wokusebenza kodwa futhi nokuzinza kwesikhathi eside kanye nokuthembeka kohlelo. Ekuthuthukisweni nasekusetshenzisweni kwe-laser esikhathini esizayo, ukulawula okunembile kanye nokusetshenziswa okuguquguqukayo komjikelezo womsebenzi kuzobaluleka ekuthuthukiseni ukusebenza kahle kohlelo kanye nokwenza kube lula ukusungula izinto ezintsha.

Uma unemibuzo eminingi mayelana nomklamo noma izinhlelo zokusebenza zepharamitha ye-laser, zizwe ukhululekile ukuxhumana nathi noma ushiye amazwana. Silapha ukuzokusiza!