Umkhwa wophuhliso lwelaser yobubanzi obumxinwa

Indlela yophuhliso lwei-laser enobubanzi obumxinwa
Uphuhliso lwendlela yokuphendula nge-laser kwi-laser enobubanzi obuncinci kuphuhliso lwesakhiwo se-laser resonant cavity. Ngezantsi, siza kwazisa ulungelelwaniso olwahlukeneyo lwetekhnoloji ye-laser enobubanzi obuncinci ngokulandelelana kophuhliso lwee-laser resonators.

1. Uqwalaselo lwe-single main cavity. Olu hlobo lwe-laser lunokwahlulwa lube yi-linear cavity (uqwalaselo lweklasikhi, ulwakhiwo olulula nolusebenzayo) kunye ne-annular cavity (ukunqoba ukutsha kwemingxuma yendawo kunye nokusebenzisa i-traveling wave field). I-non planar ring resonator (NPRO) ikhankanyiwe ngokukodwa kwi-ring resonator, eyi-traveling wave field ekhethekileyo nezinzileyo kakhulu.ilezaNgokwembono yobude bomngxuma, ingahlulwa ibe yimingxunya emifutshane (kulula ukuyisebenzisa i-SLM enye yemowudi ende, kodwa inobubanzi bomgca ongaphakathi kunye nengxolo ephezulu) kunye nemingxunya emide (ngokwahlukileyoububanzi bomgca omxinwa, kodwa ukusebenzisa umsebenzi we-SLM yingxaki yobuchwepheshe).

2. Uqwalaselo lwempendulo yomngxuma wangaphandle omnye. Olu qwalaselo lucetywayo ukusombulula iingxaki zexesha elifutshane lokusebenzisana kwe-photon kunye nokususwa okunzima kokukhutshwa okuzenzekelayo kumngxuma omnye oyintloko, ngokucoca nokubuyisela ii-photon kumngxuma wangaphandle ukuze kucinezelwe ububanzi bomgca. Izakhiwo zakudala zaziquka imingxunya yangaphandle yohlobo lweLittrow kunye neLittman Metcalf esebenzisa ii-gratings. Ubunzima bobuchwephesha bolu qwalaselo bukwinqanaba lokudibanisa umngxuma oyintloko nomngxuma wangaphandle.
3. Iinkqubo ezimbini eziphambili ze-cavity ezidityanisiweyo ezisekelwe kwi-Bragg gratings:

I-laser ye-DFBuqwalaselo: Ukudibanisa isakhiwo seBragg nommandla osebenzayo kunye nokwazisa ummandla we-phase shift, inokuhlanganiswa okuphezulu, uzinzo kunye nokusebenza, kwaye iphucula ukuhamba kwe-wavelength ye-DBR. Ubunzima bobuchwephesha bukwinkqubo yokugcada (njenge-secondary epitaxial RGF-DFB kunye neendlela ze-surface etching SG-DFB ze-semiconductor DFB).
Uqwalaselo lwelaser ye-DBR: ithatha indawo yezipili zemveli ngezakhiwo zeBragg ezingasebenziyo rhoqo, ezineempawu zokucoca kwaye kulula ukuzisebenzisa i-SLM enemingxuma emifutshane. Ngokwendlela yokufumana inzuzo, inokwahlulwa ibe yi-semiconductor DBR (enokuhambelana kakuhle kwenkqubo) kunye ne-fiber DBR (exhomekeke kwiteknoloji yokucubungula ifayibha kunye ne-doping).

Ukuze kucinezelwe ububanzi bomgca we-cavity emfutshane (njenge-DFB/DBR), kuya kusetyenziswa isakhiwo se-composite outer cavity. Imo ye-cavity yangaphandle iye yaphucuka ngophuhliso lwetekhnoloji:
Umngxuma wangaphandle wesithuba: iifom eziphambili zokuqala, kuquka i-grating (Littrow/Littman) kunye nee-optical filters ezahlukeneyo (ezifana ne-FP standard).
I-Fiber optic external cavity: kusetyenziswa zonke izixhobo ze-fiber optic (ezifana nee-fiber optic circuits, ii-FBGs, ii-fiber optic FP cavities, njl.njl.), amandla okudibanisa kunye nokulwa nokuphazamiseka aqinile.
Umngxuma we-waveguide yangaphandle: Ukulungiswa kwe-micro nano okusekelwe kwizixhobo ze-semiconductor ezifana ne-Si kunye ne-Si3N4, okwenza inkqubo ibe ncinci kwaye izinzile.

Okokugqibela, eli nqaku lizisa uqwalaselo lwee-optoelectronic oscillating lasers, oluluhlobo olukhethekileyo lwempendulo, olufana netekhnoloji yokuzinzisa i-PDH frequency. Ngokusebenzisa impendulo engalunganga yombane ukutshixa i-laser frequency kumthombo wereferensi ozinzileyo kakhulu, ukuzinza kwe-frequency ephezulu kakhulu kunokufezekiswa. Nangona kunjalo, inkqubo iyinkimbinkimbi, ibiza kakhulu, kwaye ukuguquguquka kwe-wavelength kulinganiselwe.