LPT-11 Serial Experiments paSemiconductor Laser

Tsanangudzo

Laser kazhinji ine zvikamu zvitatu
(1) Laser kushanda svikiro
Chizvarwa chelaser chinofanira kusarudza yakakodzera svikiro rekushanda, rinogona kunge riri gasi, mvura, yakasimba kana semiconductor.Mune iyi mhando yepakati, inversion yehuwandu hwezvikamu zvinogona kuitika, inova ndiyo inodiwa mamiriro ekuwana laser.Zviripachena, kuvepo kweiyo metastable simba level kunobatsira kwazvo pakuzadzikiswa kwenhamba inversion.Parizvino, kune angangoita chiuru emhando dzekushanda midhiya, iyo inogona kuburitsa rakasiyana siyana laser wavelengths kubva kuVUV kusvika kure infrared.
(2) Mabviro ekukurudzira
Kuti uite inversion yenhamba yezvimedu zvioneke munharaunda yekushanda, zvinodikanwa kushandisa dzimwe nzira kufadza iyo atomic system kuti iwedzere huwandu hwezvimedu munzvimbo yepamusoro.Kazhinji, kubuda kwegasi kunogona kushandiswa kufadza maatomu edielectric nema electrons ane kinetic energy, iyo inonzi magetsi emagetsi;pulse light source inogonawo kushandiswa kuita irradiate working medium, iyo inonzi optical excitation;kupisa kwekupisa, makemikari excitation, etc. Nzira dzakasiyana-siyana dzekukurudzira dzinoonekwa sepombi kana pombi.Kuti uwane iyo laser inobuda nguva nenguva, zvinodikanwa kupomba nguva nenguva kuchengetedza huwandu hwezvikamu muchikamu chepamusoro kupfuura icho chiri pazasi.
(3) Resonant cavity
Nezvakakodzera zvekushandisa uye sosi yekukurudzira, iyo inversion yenhamba yenhamba inogona kuitika, asi kusimba kweiyo yakakurudzirwa radiation haina kusimba, saka haigone kushandiswa mukuita.Saka vanhu vanofunga nezvekushandisa optical resonator kukwidziridza.Iyo inonzi optical resonator ichokwadi magirazi maviri ane high reflectivity akaiswa chiso nechiso pamativi ese maviri e laser.Imwe ingangoita kuratidzwa kwakazara, imwe yacho inonyanya kuratidzwa uye inopfuudzwa zvishoma, kuitira kuti laser ibudiswe kuburikidza negirazi.Chiedza chinoratidzwa kumashure kune svikiro rekushanda chinoenderera mberi nekuunza mwaranzi mutsva unosimudzira, uye mwenje unowedzerwa.Naizvozvo, mwenje unotenderera mberi nekudzoka mune resonator, zvichiita kuti ketani iite, iyo inokwidziridzwa senge avalanche, ichigadzira yakasimba laser kubuda kubva kune imwe mugumo wechikamu chinoratidzira girazi.

Miedzo

1. Output simba characterization ye semiconductor laser

2. Divergent angle kuyerwa kwe semiconductor laser

3. Dhigirii yekuyera kwepolarization ye semiconductor laser

4. Spectral characterization ye semiconductor laser

Zvinotsanangurwa