Ku saabsan MOPA

MOPA (Master Oscillator Power Amplifier) ​​waa qaab-dhismeed laysar ah oo kor u qaada waxqabadka wax soo saarka isagoo kala soocaya isha abuurka (master oscillator) iyo marxaladda kor u qaadista awoodda. Fikradda asaasiga ah waxay ku lug leedahay soo saarista calaamad garaaca abuurka oo tayo sare leh oo leh master oscillator (MO), kaas oo markaa lagu kordhiyo tamarta iyadoo la adeegsanayo master oscillator (PA), ugu dambeyntiina wuxuu keenayaa garaaca laysarka oo awood sare leh, tayo sare leh, iyo kuwa la xakameyn karo. Qaab-dhismeedkan waxaa si weyn loogu isticmaalaa habaynta warshadaha, cilmi-baarista sayniska, iyo codsiyada caafimaadka.

1.Faa'iidooyinka Muhiimka ah ee Ballaarinta MOPA

①Qodobbada Dabacsan oo La Xakameyn Karo:

- Ballaca Garaaca oo si madax-bannaan loo hagaajin karo:

Ballaca garaaca ee garaaca abuurka waxaa si madax-bannaan loo hagaajin karaa iyadoo loo eegayo marxaladda amplifier-ka, badanaa waxay u dhaxaysaa 1 ns ilaa 200 ns.

- Heerka Ku Celceliska La Hagaajin Karo:

Waxay taageertaa heerar kala duwan oo ku celcelinta garaaca wadnaha ah, laga bilaabo hal-toob ilaa garaaca heerka sare ee MHz, si loo daboolo baahiyaha kala duwan ee habaynta (tusaale, calaamadaynta xawaaraha sare iyo xaraashka qoto dheer).

②Tayada Iftiinka Sare:
Astaamaha buuqa yar ee isha abuurka ayaa la ilaaliyaa ka dib marka la kordhiyo, taasoo keenaysa tayada iftiinka oo ku dhow kala-goynta (M² < 1.3), oo ku habboon farsamaynta saxda ah.

③Tamarta iyo Xasilloonida Garaaca Sare:
Iyada oo la adeegsanayo kor u qaadis marxalado badan leh, tamarta hal garaaca wadnaha ah waxay gaari kartaa heerka millijoule iyadoo leh isbeddel tamar oo yar (<1%), oo ku habboon codsiyada warshadaha ee saxnaanta sare leh.

④Awoodda Habaynta Qabowga:
Marka la eego ballaca garaaca gaaban (tusaale ahaan, heerka nanosecond), saameynta kulaylka ee agabka waa la yareyn karaa, taasoo suurtogalinaysa farsamayn fiican oo walxaha jajaban sida galaaska iyo dhoobada.

2. Oscillator-ka Sare (MO):

MO waxay soo saartaa garaaca abuurka oo awood yar leh laakiin si sax ah loo xakameeyey. Isha abuurka badanaa waa laser semiconductor (LD) ama laser fiber, taasoo soo saarta garaaca iyada oo loo marayo habayn toos ah ama dibadeed.

3.Xoojiyaha Korontada (PA):

PA waxay isticmaashaa qalab xoojiya fiilooyinka (sida ytterbium-doped fiber, YDF) si ay u xoojiso garaaca abuurka marxalado badan, taasoo si weyn u kordhinaysa tamarta garaaca wadnaha iyo awoodda celceliska. Naqshadeynta qalab kordhiya waa inay ka fogaataa saamaynta aan tooska ahayn sida kala firdhinta Brillouin (SBS) iyo kala firdhinta Raman (SRS), iyadoo la ilaalinayo tayada iftiinka sare.

MOPA iyo. Laysar-ka Fiber-ka Q-Switched-ka Dhaqanka