Umzila wobuchwepheshe oyinhloko wamalaser anobubanzi obuncane bomugqa oguqulekayo

Umzila oyinhloko wezobuchwepheshe weama-lasers anobubanzi obuncane bomugqa

Imizila yezobuchwepheshe eyinhloko ye-tunableama-lasers anobubanzi bomugqa omncaneenezimbotshana zangaphandle ze-semiconductor

Amalaser anobubanzi obuncane obuncane obunwebekayo ayisisekelo sokusetshenziswa okubanzi emikhakheni efana ne-atomic physics, i-spectroscopy, ulwazi lwe-quantum, ukuxhumana okuhambisanayo, ukuzwa okukude, kanye nokulinganisa ukunemba. Kule mikhakha, ama-laser alula, ashibhile, ububanzi bomugqa obuncane kanye nobubanzi obubanzi bokushuna azoqhubeka eshayela izinhlelo zokusebenza ezintsha zalobu buchwepheshe.

Eminyakeni engu-50 edlule, umlando we-umthombo wokukhanya osebenzisekayoI-TLS Laser ikhombise kakhulu ukuthuthukiswa kobuchwepheshe be-laser. Amalaser odayi okuqala athathelwe indawo ama-laser diode diode angaphandle (ECDLs), kuyilapho amasistimu anamandla aphezulu abuswa ama-laser aqinile esifunda (njengama-laser e-titanium-sapphire) noma ama-laser e-Nd:YAG aguqulelwe imvamisa asebenzisa ama-optical parametric oscillator (OPO). Amalaza e-Diode angenayo imigodi yangaphandle ezinzile agcwalise isiphetho semakethe esibiza kancane nesisebenza kancane ngama-diode e-DFB Laser ne-DBR, anobubanzi bemigqa obuncane njengo-500kHz. Muva nje, ama-fiber lasers nama-variable-frequency fiber lasers aqale ukushintsha amasistimu amaningi e-solid state ngamadizayini ahlukene, anikeza amandla aphakeme kanye nokuthuna okukhulu, noma ububanzi bemigqa emincane. Namuhla, ukuvela kwama-frequency Combs kwenza ama-lasers azinzile ukuthi azuzwe kunoma yibuphi ubude be-wavelength kuyilapho kugcinwa ukuzinza nokunemba okuhle kakhulu. Nokho, naphezu kwalokhu, umgodi wangaphandleI-semiconductor laserisasigcina isimo sayo njengomthombo wokukhanya osetshenziswa ngokuvamile kumalabhorethri amaningi ngenxa yobulula bayo, ukusebenza okuningi, ukusebenza okuhloniphekile kanye nezindleko eziphansi kakhulu.

Njengamanje, ama-lases anobubanzi obuncane bomugqa obunwebekayo anama-semiconductors angaphandle asetshenziswe kabanzi ku:

Ukupholisa i-laser nokubamba

I-Bose-Einstein condensation

I-Quantum Optics: Isibani esicindezelwe

I-electromagnetic transparent and slow ukukhanya

Amazinga wesikhathi nemvamisa

I-Laser spectroscopy

Amalaser anobubanzi obuncane bomugqa obunwebekayo ngokuvamile akhiwa isilawuli, i-laser diode kanye nemojula yokukhetha imvamisa. Isibonelo, ama-gratings asetshenziselwa ukukhetha nokushuna kwe-laser, noma izihlungi ezisekelwe esakhiweni seso lekati, njll. Izici ezibalulekile zamalaser anobubanzi obuncane obuncane obunama-semiconductors angaphandle ahlanganisa ubude bomugqa we-laser obuncane, i-low frequency drift, kanye nobubanzi bokushuna, njll. Futhi lezi zici ezivelele zincike kumjikelezo we-laser drive omuhle kakhulu, ukukhethwa komshini kanye nokuzinza kwe-laser. Ukuze kuzuzwe ukuzinza okuphezulu kwemvamisa ye-laser, izinhlobo ezahlukene zamamojula wokukhiya imvamisa ye-laser zingangezwa. Isibonelo, ngokusebenzisa ubuchwepheshe bokuzinzisa imvamisa ye-PDH ukukhiya ubude begagasi be-laser ku-optical super-stable cavity, ububanzi bomugqa we-laser bungancishiswa bufinyelele ezingeni le-1 Hz, futhi ukuzinza kwemvamisa kungafinyelela ku-< 3× 10-15 @ 1 s.