Njira yayikulu yaukadaulo yama lasers ocheperako-linewidth

Waukulu luso njira yama lasers ocheperako-linewidth

Waukulu luso njira tunableyopapatiza-linewidth lasersndi ma semiconductor akunja cavities

Ma laser a tunable-narrow-linewidth lasers ndiye maziko ogwiritsira ntchito zambiri m'magawo monga atomic physics, spectroscopy, zidziwitso za kuchuluka, kulumikizana kogwirizana, kuzindikira kutali, komanso kuyeza kolondola. M'magawo awa, ma laser osavuta, otsika mtengo, ocheperako komanso okulirapo apitiliza kuyendetsa ntchito zatsopano zaukadaulowu.

Pazaka 50 zapitazi, mbiri yagwero la kuwala kokwaniraTLS Laser yawonetsa kwambiri kukula kwaukadaulo wa laser. Ma lasers oyambira opaka utoto adasinthidwa ndi ma lasers akunja a diode (ECDLs), pomwe makina amphamvu kwambiri amayendetsedwa ndi ma laser olimba olimba (monga titanium-sapphire lasers) kapena otembenuzidwa pafupipafupi Nd:YAG lasers pogwiritsa ntchito oscillator optical parametric oscillators (OPO). Ma lasers a diode opanda zingwe zakunja zokhazikika zadzaza msika wotsika mtengo komanso wotsika mtengo ndi malonda a DFB Laser ndi DBR diode, okhala ndi mizere yopapatiza ngati 500kHz. Posachedwapa, ma lasers a fiber lasers ndi ma fiber lasers osinthika ayamba kusintha machitidwe ambiri olimba ndi mapangidwe osiyanasiyana, opatsa mphamvu zapamwamba komanso kusinthasintha kwakukulu, kapena mizere yocheperako. Masiku ano, kutuluka kwa ma frequency combs kumathandizira ma laser okhazikika pafupipafupi kuti athe kukwaniritsidwa pamlingo uliwonse pomwe akukhalabe okhazikika komanso olondola. Komabe, ngakhale izi, kunja patsekekelaser semiconductorakadalibe udindo wake monga gwero lowunikira lomwe amagwiritsidwa ntchito kawirikawiri m'ma laboratories ambiri chifukwa cha kuphweka kwake, ntchito zambiri, ntchito zolemekezeka komanso zotsika mtengo kwambiri.

Pakadali pano, ma lasers ocheperako-linewidth okhala ndi ma semiconductors akunja agwiritsidwa ntchito kwambiri mu:

Kuziziritsa kwa laser ndi kujambula

Bose-Einstein condensation

Quantum Optics: Kuwala kophatikizika

Electromagnetic transparent and slow light

Nthawi ndi nthawi zambiri miyezo

Laser spectroscopy

Ma laser a tunable-laser-linewidth lasers nthawi zambiri amakhala ndi chowongolera, diode ya laser ndi gawo losankha pafupipafupi. Mwachitsanzo, ma gratings omwe amagwiritsidwa ntchito posankha mafupipafupi a laser ndi kukonza, kapena zosefera kutengera kapangidwe ka diso la mphaka, ndi zina zotere. Makhalidwe ofunikira a ma lasers opapatiza okhala ndi ma semiconductors akunja amaphatikizira utali wocheperako wa laser, kutsetsereka kocheperako, komanso kuwongolera kwakukulu, ndi zina zambiri. Kuti mukwaniritse kukhazikika kwapang'onopang'ono kwa laser, mitundu yosiyanasiyana ya ma module otsekera ma laser amatha kuwonjezeredwa. Mwachitsanzo, pogwiritsa ntchito ukadaulo wokhazikika wa PDH pafupipafupi kuti mutseke kutalika kwa laser pamphuno yowoneka bwino kwambiri, kutalika kwa laser kumatha kuchepetsedwa mpaka 1 Hz, ndipo kukhazikika kwafupipafupi kumatha kufika <3 × 10-15 @ 1 s.