Laser Diode Classification thiab txawv?

Laser Diode(LD luv luv), lub cev qauv ntawm lub laser diode yog teem nyob nruab nrab ntawm lub junctions ntawm lub teeb-emitting diode ib txheej ntawm lub teeb-active semiconductor, nws kawg lub ntsej muag tom qab polishing muaj ib feem kev xav, yog li tsim ib lub teeb resonator.LEDs, luv luv rau lub teeb-emitting diodes, yog ua los ntawm cov tebchaw uas muaj gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), thiab lwm yam. Thaum electrons tau ua ke nrog lub qhov, lawv emit pom lub teeb thiab tuaj yeem ua tau. siv los ua lub teeb-emitting diodes.

CovLaser Diodeyog ib hom teeb pom kev zoo semiconductor laser, tseem hu ua laser diode, tsim nyob rau xyoo 1960. LASER yog ib qho luv luv ntawm Lub Teeb Amplification los ntawm Stimulated Emission of Radiation, feem ntau hu ua LD luv luv. Vim nws muaj peev xwm ua tau raws nraim tib lub wavelength thiab theem zog ntawm lub teeb, yog li siab coherence yog nws tus yam ntxwv loj tshaj plaws. Thaum ntxov vim nws tsuas muaj peev xwm emit tsawg-luminosity liab lub teeb, HP yuav lub patent raws li qhov taw qhia siv.

Cov hauv qab no yog lub lag luam tam sim no feem ntau ntawm laser diode lub cev daim duab thiab sab hauv kev sib txuas daim duab:

Nyob rau hauv cov ntaub ntawv ntawm kev tsis ncaj ncees rau pem hauv ntej, LED niam txiv emits lub teeb thiab cuam tshuam nrog lub optical resonator, yog li ntxiv stimulating lub emission ntawm ib lub teeb wavelength los ntawm kev sib tshuam, lub cev lub zog ntawm cov khoom nyob ntawm seb.

1. Qhov txawv ntawm lub hauv paus ntsiab lus ntawm luminescence

LD yog lub ntsiab lus Askiv ntawm tuslaser diode. Lub cev architecture ntawm lub laser diode yog npaj ib txheej ntawm photoactive semiconductor ntawm lub junctions ntawm lub teeb-emitting diode, thiab nws kawg lub ntsej muag muaj ib feem ntawm kev xav tom qab polishing, yog li tsim ib tug optical resonator.

Nyob rau hauv cov ntaub ntawv ntawm kev tsis ncaj ncees rau pem hauv ntej, LED niam txiv emits lub teeb thiab cuam tshuam nrog lub optical resonator, yog li ntxiv stimulating lub emission ntawm ib lub teeb wavelength los ntawm kev sib tshuam, lub cev lub zog ntawm cov khoom nyob ntawm seb.

Semiconductor laser diodes ua haujlwm tib yam li cov roj lasers hauv kev xav. Laser diodes tau dav siv hauv cov khoom siv hluav taws xob qis xws li CD tsav hauv computers thiab luam ntawv hauv laser printers.

LED siv cov cab kuj spontaneous hluav taws xob compound luminescence txhaj rau hauv cheeb tsam active, laser diode LD yog stimulated hluav taws xob compound luminescence. Cov kev taw qhia thiab theem ntawm photon emitted los ntawm LED yog random, thaum lub photon emission los ntawm lub laser diode nyob rau hauv tib txoj kev thiab theem.

Nyob rau hauv PN hlws ris ntawm qee cov khoom siv semiconductor, ob peb tus neeg nqa khoom txhaj tshuaj yuav tso tawm lub zog ntau dhau ntawm lub teeb thaum ua ke nrog cov neeg nqa khoom feem ntau, yog li hloov hluav taws xob ncaj qha mus rau lub teeb lub zog. PN hlws ris nrog rov qab voltage, ob peb cov cab kuj nyuaj rau txhaj, yog li tsis muaj lub teeb. Hom diode no ua los ntawm kev txhaj tshuaj electroluminescence txoj cai hu ua lub teeb-emitting diode, feem ntau hu ua LED.

2. Qhov sib txawv ntawm kev ua haujlwm, qauv, thiab kev ua haujlwm zoo

① Ua hauj lwm hauv paus ntsiab lus: LED siv spontaneous carrier radiation compound luminescence txhaj rau hauv lub active cheeb tsam, thaum LD yog stimulated hluav taws xob compound luminescence.

② Architecture: LD muaj qhov kho qhov muag resonator, uas ua rau cov photon oscillate generated thiab amplify nyob rau hauv kab noj hniav, thaum LED tsis muaj resonator.

③ Kev ua tau zoo: Tsis muaj qhov tseem ceeb super-requisition rau LED, thiab cov spectral ceev yog ob peb txiav txim ntawm magnitude siab tshaj li ntawm LD. LED tso zis zog yog me me thiab lub divergence Angle yog loj.

Cov lus ceeb toom ntawm kev siv Laser Diodes:

① Anti-static: Thaum noj cov kav dej los yog vuam pins, hnav lub dab teg hauv av (lub dab teg yog txuas nrog 1MΩ tsis kam grounding, raws li qhia hauv daim duab 3, los tiv thaiv cov yeeb nkab los ntawm kev puas tsuaj los ntawm hluav taws xob zoo li qub.

② Vuam: vuam, lub plhaub ntawm cov hlau hluav taws xob yuav tsum txuas nrog hauv av, nws yog qhov zoo tshaj kom rub lub hwj chim ntsaws ntawm lub qhov (socket). Lub sij hawm vuam yuav tsum luv luv (qhov siab tshaj plaws vuam kub 260 degree, vuam lub sij hawm tsawg dua 5s), thiab ib zaug vuam tsis muaj zog tom qab ib tug tej lub sij hawm yuav welded dua.

③ Ua hauj lwm tam sim no: tsis txhob ua kom nws siab tshaj tus nqi thaum kho, kuj tsis tuaj yeem muaj overshoot tam sim no. Tiv thaiv cov kab tawg hauv kev hloov kho, txwv tsis pub, nws yuav hlawv tawm cov yeeb nkab. Ob qho tib si AC thiab DC ua haujlwm tau txais, tab sis tus nqi siab tshaj yuav tsum tsis pub tshaj tus nqi siab tshaj plaws.Yog tias koj tsis tas yuav saib xyuas cov zis, koj tuaj yeem siv VD2.

④ Tiv thaiv lub laser beam los ntawm kev mob qhov muag: thaum lub laser ua hauj lwm, tsis txhob saib lub teeb qhov chaw ncaj qha los yog los ntawm kev xav, txwv tsis pub nws yuav ua mob rau lub qhov muag. Raws li kev xyaum thoob ntiaj teb, cov ntawv ceeb toom yuav tsum tau txuas nrog lasers.

Cov ntaub ntawv tiv tauj:

Yog tias koj muaj lus nug, thov hu rau peb. Txawm peb cov neeg muas zaub nyob qhov twg thiab peb cov kev xav tau yog dab tsi, peb yuav ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom zoo, tus nqi qis, thiab kev pabcuam zoo tshaj plaws.