Nzira huru yehunyanzvi yema lasers akamanikana anogadziriswa
Nzira huru dzehunyanzvi dzekugadzirisalasers dzakatetepa-dzakafaraine migero yekunze ye semiconductor
Malaser ane upamhi hwemutsara mutete anogadziriswa (Tunable narrow-line width lasers) ndiwo hwaro hwekushandiswa kwakakura muminda yakaita seatomic physics, spectroscopy, quantum information, coherent communication, remote sensing, uye kuyera nemazvo. Muminda iyi, malaser ane upamhi hwemutsara mutete, akachipa, akapfava uye akafara tuning range acharamba achitungamira mashandisirwo matsva etekinoroji iyi.
Mumakore makumi mashanu apfuura, nhoroondo yechiedza chinogadziriswaTLS Laser yakaratidza zvakanyanya kukura kwetekinoroji yelaser. Malaser ekutanga edhayi akatsiviwa nemalaser ekunze ekunze (ECDLs), nepo masisitimu ane simba guru achitongwa nemalaser ekudzivirira anogadziriswa (akadai setitanium-sapphire lasers) kana malaser eNd:YAG anoshandurwa frequency achishandisa optical parametric oscillators (OPO). Malaser eDiode asina macavity ekunze akagadzikana akazadza musika wepasi uye usingashande zvakanyanya nema diode eDFB Laser neDBR, ane upamhi hwemitsara hwakatetepa se500kHz. Munguva pfupi yapfuura, malaser emagetsi ...laser ye semiconductorichiri kuramba ichishandiswa zvakanyanya sechiedza mumarabhoritari mazhinji nekuda kwekureruka kwayo, mashandiro ayo akawanda, mashandiro ayo anoremekedzeka uye mutengo wayo wakaderera.
Parizvino, ma laser anochinjika ane hupamhi hwemutsara mutete ane ma semiconductor ekunze akashandiswa zvakanyanya mu:
Kutonhodza nekubata neLaser
Kunyoroveswa kweBose-Einstein
Quantum Optics: Chiedza chakamanikidzwa
Chiedza chemagetsi chinoonekera uye chinononoka
Nguva uye frequency standards
Laser spectroscopy
Malaser ane hurefu hwemutsara unochinjika anowanzo umbwa ne controller, laser diode uye frequency selection module. Semuenzaniso, ma grating anoshandiswa pakusarudza uye kugadzirisa ma frequency e laser, kana ma filters zvichienderana nechimiro cheziso rekati, nezvimwewo. Hunhu hwakakosha hwemalaser ane hurefu hwemutsara unochinjika ane external cavity semiconductors anosanganisira narrow laser linewidth, low frequency drift, uye wide tuning range, nezvimwewo. Uye hunhu uhwu hwakanaka hunoenderana ne laser drive circuit yakanaka kwazvo, kugadzikana kwese kwemechanical kwelaser, uye musimboti wekusarudza ma frequency. Kuti uwane kugadzikana kwefrequency kwakanyanya kwelaser, mhando dzakasiyana dze laser frequency-locking modules dzinogona kuwedzerwa. Semuenzaniso, nekushandisa PDH frequency stabilization technology kuvhara wavelength yelaser pane optical super-stable cavity, linewidth yelaser inogona kuderedzwa kusvika padanho re1 Hz, uye kugadzikana kwefrequency kunogona kusvika < 3× 10-15 @ 1 s.
Nguva yekutumira: Chikumi-11-2025