Laysarka garaaca ee awoodda sare leh oo leh qaab-dhismeedka MOPA-ga oo dhan

Laysarka garaaca ee awoodda sare lehoo leh qaab-dhismeedka MOPA-ga oo dhan

Noocyada qaab dhismeedka ugu muhiimsan ee laysarka fiber-ka waxaa ka mid ah resonator-ka keliya, isku-darka alwaaxyada iyo qaab-dhismeedka awoodda oscillating power (MOPA). Waxaa ka mid ah, qaab-dhismeedka MOPA wuxuu noqday mid ka mid ah meelaha cilmi-baarista ee hadda jira sababtoo ah awoodda uu u leeyahay inuu gaaro waxqabad sare.laser garaacawax soo saarka leh ballaca garaaca wadnaha la hagaajin karo iyo soo noqnoqoshada soo noqnoqda (waxaa loola jeedaa ballaca garaaca iyo inta jeer ee soo noqnoqda).

Mabda'a shaqada ee laser MOPA waa sida soo socota: oscillator-ka ugu weyn (MO) waa il abuurka waxqabadka sare leh.laser semiconductorkaas oo dhaliya iftiinka calaamada abuurka oo leh cabirro la hagaajin karo iyada oo loo marayo habaynta garaaca wadnaha ee tooska ah. Xakamaynta ugu weyn ee Field Programmable gate Array (FPGA) waxay soo saartaa calaamadaha garaaca wadnaha ee hadda jira oo leh cabbirro la hagaajin karo, kuwaas oo ay maamusho wareegga wadista si ay uga shaqeyso isha abuurka oo ay u dhammaystirto qaabaynta bilowga iftiinka abuurka. Ka dib marka la helo tilmaamaha xakamaynta ee guddiga kontoroolka FPGA, wareegga isha matoorka wuxuu bilaabaa isha matoorka si uu u dhaliyo iftiinka bamka. Ka dib marka iftiinka abuurka iyo nalka bamka ay ku lammaansan yihiin qaybiyaha biraha, siday u kala horreeyaan ayaa lagu duraa Yb3+ -doped double-clad fiber optical (YDDCF) ee qaybta laba-heer ee kor u qaadista indhaha. Inta lagu jiro hawshan, Yb3+ ions waxay nuugaan tamarta iftiinka bamka si ay u sameeyaan qaybinta rogashada dadweynaha. Intaa ka dib, iyadoo lagu salaynayo mabaadi'da xoojinta hirarka safarka iyo sii daynta kicinta, iftiinka abuurka abuurka wuxuu gaaraa faa'iidooyin awood sare leh qaybta laba-heer sare ee maqalka indhaha, ugu dambeyntiina soo saarta awood sare.nanoscond pulsed laser. Korodhka awoodda ugu sarreysa awgeed, calaamada garaaca garaaca wadnaha ee la xoojiyay ayaa laga yaabaa inay la kulanto cadaadis balladhka garaaca wadnaha sababtoo ah saamaynta xajinta faa'iidada. Codsiyada wax ku oolka ah, qaababka kor u qaadida heerarka badan ayaa badanaa la qaataa si loo sii wanaajiyo awoodda wax soo saarka oo loo helo waxtarka.

Nidaamka wareegga laser MOPA wuxuu ka kooban yahay guddiga korantada ugu weyn ee FPGA, isha bamka, isha abuurka, guddiga wareegga darawalka, cod-weyneeye, iwm. 900kHz). Digniintu waxa ay soo gelisaa go'doominta qaybta laba-heer ee kor u qaadida indhaha oo ka kooban horudhac iyo cod-weyneeye weyn, oo ugu dambeyntii soo saara laser garaac-gaaban oo tamar sare leh iyada oo loo marayo go'doominta indhaha ee leh shaqada isku-dhafka. Ilaha abuurku waxa uu ku qalabaysan yahay sawir-qaade gudaha ah si uu ula socdo awoodda wax-soo-saarka wakhtiga dhabta ah oo dib loogu celiyo guddiga kontoroolka weyn ee FPGA. Guddiga kontoroolka ugu weyn ayaa koontaroolaya wareegyada wadista bamka 1 iyo 2 si loo gaaro furitaanka iyo xiritaanka ilaha bamka 1, 2 iyo 3. Markasawirqaadeku guul darreysato in ay ogaato soosaarka iftiinka calaamadda, guddiga kontoroolka ugu weyn ayaa xiri doona isha bamka si looga hortago waxyeellada YDDCF iyo qalabka indhaha sababtoo ah la'aanta iftiinka abuurka

Habka dariiqa indhaha ee MOPA laser wuxuu qaataa dhammaan qaab-dhismeedka fiber-ka wuxuuna ka kooban yahay module oscillation-ka ugu weyn iyo module laba-heer-weyneyn ah. Module oscillation-ka ugu weyn wuxuu qaadanayaa diode leyser semiconductor (LD) oo leh mawjadaha dhexe ee 1064nm, linewidth of 3nm, iyo awoodda wax soo saarka joogtada ah ee ugu badan ee 400mW sida isha abuurka, wuxuuna ku daraa fiber Bragg grating (FBG) oo leh muuqaal muuqaal ah 99%@1063.nm nidaamka xulashada hirarka dhererka. Qaybta 2-heer-weyneyntu waxay qabataa nashqada bamka beddelka ah, iyo YDDCF oo leh dhexroorka xudunta u ah 8 iyo 30μm ayaa siday u kala horreeyaan loo habeeyey sidii warbaahin faa'iido leh. Isku-beegyada nuugista dahaarka u dhigma waa 1.0 iyo 2.1dB/m@915nm, siday u kala horreeyaan.