Jidka farsamada ugu weyn ee leysarka cidhiidhi-linewidth tunable

Jidka ugu weyn ee farsamada eeLaysarka-lineball-ka ee la hagaajin karo

Dariiqyada ugu muhiimsan ee farsamada ee tunablelaser-lineball dhuubanoo leh godadka dibadda ee semiconductor

Laysarada-linewidth ee la dami karo ayaa ah aasaaska codsiyada ballaaran ee dhinacyada sida fiisigiska atomiga, spectroscopy, macluumaadka tirada, isgaarsiinta isku xiran, dareenka fog, iyo cabirka saxda ah. Dhinacyadan, ka fudud, ka jaban, xadhkaha fidsan ee dhuuban iyo laysarka kala hagaynta ballaaran ayaa sii wadi doona inay kaxeeyaan codsiyada cusub ee tignoolajiyadan.

In ka badan 50 sano ee la soo dhaafay, taariikhda eeilayska la hagaajin karoLaser TLS ayaa inta badan ka tarjumaysa horumarinta tignoolajiyada laysarka. Laysarka dheeha ee bilowga ah waxaa lagu bedelay lasers diode cavity diode lasers (ECDLs), halka nidaamyada awooda sare ay u badan yihiin lasers-state adag tunable (sida titanium-sapphire lasers) ama inta jeer-beddelay Nd: YAG lasers isticmaalaya oscillators parametric indhaha (OPO). Laysarka Diode ee aan lahayn godadka bannaanka deggan ayaa ka buuxiyey qiimo jaban iyo dhammaadka suuqa waxqabad hooseeya oo leh DFB Laser-ka ganacsiga iyo diodhyada DBR, oo ballacyada xariiqa ah sida 500kHz. Dhawaan, laser-ka fiber-ka iyo laser-ka-soo-noqoshada fibre-gaaban waxay bilaabeen inay beddelaan nidaamyo badan oo adag oo leh nashqado kala duwan, oo bixiya awood sare iyo tunability weyn, ama ballaadhka xariiqda cidhiidhiga ah. Maalmahan, soo ifbaxa shanlooyinka soo noqnoqda waxay awood u siinaysaa leysarka inta jeer ee xasiloon in lagu gaaro hirar kasta iyadoo la ilaalinayo xasillooni iyo saxnaan aad u wanaagsan. Si kastaba ha ahaatee, inkastoo ay taasi jirto, godka dibaddalaser semiconductorweli waxa ay sii haysaa xaaladdeeda ilayska sida caadiga ah loo isticmaalo shaybaarro badan sababtoo ah fududaanteeda, hawlkarnimadeeda badan, waxqabadka la ixtiraamo iyo qiimaha aadka u hooseeya.

Waqtigan xaadirka ah, lasers-linewidth-cidhiidhi ah oo la hagaajin karo oo leh semiconductors dalool dibadda ah ayaa si ballaaran loogu dabaqay:

Laser qaboojinta iyo qabashada

Uumiga Bose-Einstein

Quantum Optics: Iftiin cufan

Electromagnetic hufan oo iftiin gaabis ah

Waqtiga iyo heerarka soo noqnoqda

Laser spectroscopy

Laysarka-lineball-ka ee la hagaajin karo waxay caadi ahaan ka kooban yihiin kontaroole, diode laser iyo moduleka xulashada soo noqnoqda. Tusaale ahaan, gratings loo isticmaalo xulashada soo noqnoqda laser iyo daawaynta, ama filtarrada ku salaysan qaab-dhismeedka isha bisadda, iwm sifooyinka muhiimka ah ee lasers cidhiidhi-linewidth tunable leh semiconductors dalool dibadda ka mid ah linewidth laser cidhiidhi ah, leexin soo noqnoqda yar yahay, iyo kala duwan oo tuning ballaaran, iwm. Oo sifooyin kuwan cajiib ah waxay ku xiran yihiin aad u weyn oo ku xiran wareegga drive laser aad u fiican, mabda'a guud ee farsamada ee xulashada laser aad u fiican. Si loo gaaro xasilloonida soo noqnoqoshada sare ee laysarka, noocyo kala duwan oo ah modules qufulka laysarka ayaa lagu dari karaa. Tusaale ahaan, adoo isticmaalaya tikniyoolajiyadda xasilinta soo noqnoqda ee PDH si loo xidho hirarka dhererka laysarka ee godka super-stable optical, xadhkaha leysarka ayaa lagu soo koobi karaa heerka 1 Hz, xasiloonida soo noqnoqda waxay gaari kartaa <3× 10-15 @ 1 s.