LPT-11 Serial Experiments ntawm Semiconductor Laser

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Los ntawm kev ntsuas lub zog, qhov hluav taws xob thiab tam sim no ntawm lub tshuab hluav taws xob semiconductor, cov tub ntxhais kawm tuaj yeem nkag siab cov yam ntxwv ua haujlwm ntawm lub tshuab hluav taws xob semiconductor nyob rau hauv cov zis tas li.Optical multichannel analyzer yog siv los soj ntsuam cov fluorescence emission ntawm semiconductor laser thaum cov tshuaj tam sim no tsawg dua qhov pib tus nqi thiab cov spectral kab hloov ntawm laser oscillation thaum tam sim no loj dua qhov pib tam sim no.

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Laser feem ntau muaj peb ntu
(1) Laser ua haujlwm nruab nrab
Lub cim ntawm laser yuav tsum xaiv qhov nruab nrab ua haujlwm tsim nyog, uas tuaj yeem yog roj, kua, khoom lossis semiconductor.Hauv qhov nruab nrab zoo li no, qhov kev hloov pauv ntawm tus lej ntawm cov khoom tuaj yeem pom tau, uas yog qhov tsim nyog yuav tsum tau txais laser.Obviously, lub hav zoov ntawm metastable zog theem yog heev pab tau rau lub realization ntawm tus lej inversion.Tam sim no, muaj ze li ntawm 1000 hom kev tshaj tawm ua haujlwm, uas tuaj yeem tsim ntau yam ntawm laser wavelengths los ntawm VUV mus rau deb infrared.
(2) Kev txhawb zog
Txhawm rau ua kom cov inversion ntawm tus naj npawb ntawm cov khoom tshwm sim hauv qhov nruab nrab ua haujlwm, nws yog ib qho tsim nyog yuav tsum siv qee txoj hauv kev los ua kom lub cev muaj zog atomic kom nce tus naj npawb ntawm cov khoom hauv qib siab.Feem ntau, cov pa tawm tuaj yeem siv los ua kom muaj zog dielectric atoms los ntawm electrons nrog lub zog kinetic, uas yog hu ua hluav taws xob excitation;pulse lub teeb ci kuj tuaj yeem siv rau irradiate ua haujlwm nruab nrab, uas yog hu ua optical excitation;thermal excitation, tshuaj excitation, thiab lwm yam. Ntau yam excitation txoj kev yog visualized li twj tso kua mis los yog twj tso kua mis.Txhawm rau kom tau txais cov txiaj ntsig laser tsis tu ncua, nws yog ib qho tsim nyog yuav tsum tau twj tso kua mis tsis tu ncua kom tus lej ntawm cov khoom nyob rau theem siab ntau dua li qhov qis dua.
(3) Resonant kab noj hniav
Nrog rau cov khoom siv ua haujlwm tsim nyog thiab qhov kev zoo siab, qhov kev hloov pauv ntawm tus lej tuaj yeem pom tau, tab sis qhov kev siv ntawm cov hluav taws xob txhawb zog yog qhov tsis muaj zog, yog li nws tsis tuaj yeem siv hauv kev xyaum.Yog li cov neeg xav txog kev siv optical resonator los ua kom nrov nrov.Lub thiaj li hu ua optical resonator yog tiag tiag ob daim iav nrog siab reflectivity ntsia lub ntsej muag ntawm ob hnub ntawm laser.Ib qho yog yuav luag tag nrho cov kev xav, lwm qhov feem ntau yog qhov cuam tshuam thiab kis me ntsis, kom lub laser tuaj yeem tawm los ntawm daim iav.Lub teeb pom kev rov qab mus rau qhov nruab nrab ua haujlwm txuas ntxiv ua rau cov hluav taws xob txhawb zog tshiab, thiab lub teeb yog amplified.Yog li ntawd, lub teeb oscillates rov qab mus rau hauv lub resonator, ua rau ib tug saw cov tshuaj tiv thaiv, uas yog amplified zoo li lub avalanche, ua ib tug muaj zog laser tso zis los ntawm ib tug kawg ntawm ib feem ntawm daim iav.

Kev sim

1. Tso zis hwj chim characterization ntawm semiconductor laser

2. Divergent kaum ntsuas ntawm semiconductor laser

3. Degree ntawm polarization ntsuas ntawm semiconductor laser

4. Spectral characterization ntawm semiconductor laser

Specifications

Yam khoom	Specifications
Semiconductor Laser	Tso zis zog <5 mW
Semiconductor Laser	Center Wavelength: 650nm
Semiconductor LaserTus tsav tsheb	0 ~ 40mA (nruam kho tau)
CCD Array Spectrometer	Wavelength range: 300 ~ 900 nm
	Grating: 600L / hli
	Focal Length: 302.5 hli
Rotary Polarizer Holder	Yam tsawg kawg nkaus: 1 °
Rotary theem	0 ~ 360 °, Tsawg kawg Scale: 1 °
Multi-Function Optical Elevating Table	Qhov siab qhov siab> 40 mm
Optical Fais Fab Meter	2 µW ~ 200 mW, 6 teev