Wadada farsamada ee ugu weyn ee laysarka cidhifyada cidhiidhiga ah ee la hagaajin karo

Wadada farsamada ugu weynlaser-ka cidhiidhiga ah ee la hagaajin karo

Wadooyinka farsamada ee ugu muhiimsan ee la hagaajin karoLaysarka ballaca xariiqda cidhiidhiga ahoo leh godad dibadda ah oo semiconductor ah

Laysarka cidhifka cidhiidhiga ah ee la hagaajin karo waa aasaaska codsiyada ballaaran ee meelaha sida fiisikiska atomiga, spectroscopy, macluumaadka kuantumka, isgaarsiinta isku xiran, dareemaha fog, iyo cabbirka saxda ah. Meelahan, laysarka khadka ee fudud, jaban, cidhiidhiga ah iyo kala duwanaanshaha hagaajinta ballaaran ayaa sii wadi doona inay kiciyaan codsiyada cusub ee tignoolajiyadan.

50-kii sano ee la soo dhaafay, taariikhda Jamhuuriyaddailo iftiin oo la hagaajin karoTLS Laser waxay si weyn uga muuqatay horumarka tiknoolajiyada laysarka. Laser-yada rinjiga ee bilowga ah waxaa lagu beddelay laser-yada diode-ka godadka dibadda (ECDLs), halka nidaamyada awoodda sare leh ay ku badan yihiin laser-yada adag ee la hagaajin karo (sida laser-yada titanium-sapphire) ama laser-yada Nd:YAG ee soo noqnoqda loo beddelay iyagoo isticmaalaya oscillators-ka optical parametric (OPO). Laser-yada diode-ka ee aan lahayn godadka dibadda ee deggan ayaa dhammaadka suuqa ee qiimaha jaban iyo waxqabadka hooseeya ku buuxiyay diode-yada ganacsiga DFB Laser iyo DBR, iyadoo ballaca xariiqdu ay cidhiidhi tahay sida 500kHz. Dhawaan, laser-yada fiber-ka iyo laser-yada fiber-ka ee soo noqnoqda ayaa bilaabay inay beddelaan nidaamyo badan oo adag oo leh naqshado kala duwan, iyagoo bixiya awood sare iyo hagaajin weyn, ama ballaca xariiqda cidhiidhiga ah. Maalmahan, soo ifbaxa shanlooyinka soo noqnoqda waxay suurtogal ka dhigaysaa laser-yada xasilloon ee soo noqnoqda in lagu gaaro mowjad kasta iyadoo la ilaalinayo xasillooni iyo saxnaan aad u fiican. Si kastaba ha ahaatee, inkastoo ay taasi jirto, godka dibaddalaysarka semiconductor-kawali waxay ku sii jirtaa xaaladdeeda inay tahay il iftiin oo si caadi ah loo isticmaalo shaybaarro badan sababtoo ah fudeydkeeda, shaqooyin badan, waxqabad la ixtiraamo iyo kharash aad u hooseeya.

Waqtigan xaadirka ah, laysarka cidhiidhiga ah ee la hagaajin karo oo leh semiconductors-ka daloolka dibadda ayaa si ballaaran loogu adeegsaday:

Qaboojinta iyo qabashada laysarka

Biyo-baxa Bose-Einstein

Quantum Optics: Iftiin la cadaadiyay

Iftiin hufan oo gaabis ah oo elektromagnetic ah

Heerarka waqtiga iyo soo noqnoqoshada

Sawirka laysarka (laser spectroscopy)

Laysaradaha cidhiidhiga ah ee la hagaajin karo waxay caadi ahaan ka kooban yihiin koontaroole, diode laser ah iyo module xulasho soo noqnoqosho ah. Tusaale ahaan, shabagyada loo isticmaalo xulashada soo noqnoqoshada laysarka iyo hagaajinta, ama shaandheeyayaasha ku salaysan qaab-dhismeedka isha bisadda, iwm. Astaamaha muhiimka ah ee laysaradaha cidhiidhiga ah ee la hagaajin karo oo leh semiconductors-ka daloolka dibadda waxaa ka mid ah ballac laysarka cidhiidhiga ah, hoos u dhaca soo noqnoqoshada hooseeya, iyo kala duwanaanshaha hagaajinta ballaaran, iwm. Astaamahan cajiibka ahna waxay ku xiran yihiin wareegga wadista laysarka oo aad u fiican, xasilloonida farsamada guud ee laysarka, iyo mabda'a xulashada soo noqnoqoshada oo sarreeya. Si loo gaaro xasilloonida soo noqnoqoshada oo sareysa ee laysarka, noocyo kala duwan oo modules-ka qufulka soo noqnoqoshada laysarka ah ayaa lagu dari karaa. Tusaale ahaan, iyadoo la adeegsanayo tignoolajiyada xasilinta soo noqnoqoshada PDH si loo xiro hirarka laysarka ee godka aadka u deggan ee indhaha, ballaca xariiqda laysarka waxaa loo yareyn karaa heerka 1 Hz, xasilloonida soo noqnoqoshadana waxay gaari kartaa < 3× 10-15 @ 1 s.