Iyo huru yehunyanzvi nzira yetunable nhete-linewidth lasers
Iyo huru tekinoroji nzira dze tunablenhete-linewidth lasersine semiconductor ekunze cavities
Tunable nhete-linewidth lasers ndiyo hwaro hwekushandisa kwakakura muminda yakadai seatomu fizikisi, spectroscopy, ruzivo rwehuwandu, kutaurirana kwakabatana, kure kure kunzwa, uye kuyerwa chaiko. Muminda iyi, yakapusa, yakachipa, yakatetepa mutsara uye yakafara tuning renji ma lasers acharamba achityaira maapplication matsva eiyi tekinoroji.
Kwemakore makumi mashanu apfuura, nhoroondo yetunable light sourceTLS Laser yakaratidza zvakanyanya kukura kwelaser tekinoroji. Iyo yekutanga dhayi lasers yakatsiviwa neyekunze cavity diode lasers (ECDLs), nepo yakakwirira-simba masisitimu inotongwa ne tunable solid-state lasers (senge titanium-sapphire lasers) kana frequency-yakashandurwa Nd: YAG lasers vachishandisa optical parametric oscillators (OPO). Diode lasers isina yakagadzikana ekunze cavities yakazadza mutengo wakaderera uye wakaderera-kuita musika kupera nekutengesa DFB Laser uye DBR diodes, ine mitsetse yakafara seyakatetepa se500kHz. Munguva pfupi yapfuura, mafiber lasers uye anochinja-frequency fiber lasers akatanga kutsiva akawanda akasimba-nyika masisitimu ane akasiyana magadzirirwo, achipa yakakwirira simba uye hukuru tunability, kana nhete mutsara wakafara. Mazuva ano, kubuda kwema frequency combs kunoita kuti frequency-yakagadzika lasers iwanikwe pane chero wavelength uku ichichengetedza kugadzikana kwakanaka uye iko kurongeka. Zvisinei, pasinei neizvi, iyo yekunze mhangosemiconductor laserichiri kuchengetedza chimiro chayo sechinhu chinowanzoshandiswa chechiedza mumarabhoritari akawanda nekuda kwekureruka kwayo, kushanda kwakawanda, kushanda kunoremekedzwa uye kudhura kwakanyanya.
Parizvino, tunable yakamanikana-linewidth lasers ine ekunze cavity semiconductors yakashandiswa zvakanyanya mu:
Laser kutonhora uye kubata
Bose-Einstein condensation
Quantum Optics: Chiedza chakamanikidzwa
Electromagnetic transparent uye inononoka mwenje
Nguva uye frequency zviyero
Laser spectroscopy
Tunable narrow-linewidth lasers anowanzo kuumbwa neanodzora, laser diode uye frequency yekusarudza module. Semuyenzaniso, gratings anoshandiswa laser frequency kusarudzwa uye tuning, kana mafirita anoenderana nekatsi ziso chimiro, etc. Hunhu hwakakosha hwetunable yakamanikana-linewidth lasers ine ekunze cavity semiconductors inosanganisira yakamanikana laser linewidth, low frequency drift, uye wide tuning range, etc. Uye izvi zvakatanhamara zvinotsamira pane yakanyanya kunaka laser drive circuit, iyo yakazara , mechanic kugadzikana uye kugadzikana kwemusimboti welaser. Kuti uwane yakakwirira frequency kugadzikana kwelaser, mhando dzakasiyana dzelaser frequency-locking modules dzinogona kuwedzerwa. Semuenzaniso, nekushandisa PDH frequency stabilization tekinoroji kukiya laser wavelength pane optical super-stable cavity, iyo linewidth yelaser inogona kuderedzwa kusvika pamwero we1 Hz, uye frequency kugadzikana inogona kusvika <3 × 10-15 @ 1 s.
Nguva yekutumira: Jun-11-2025