Koox Shiinees ah ayaa soo saartay 1.2μm band oo awood sare leh oo la hagaajin karo Raman fiber laser

Koox Shiinees ah ayaa soo saartay 1.2μm band oo awood sare leh oo lagu hagaajin karo Ramanlaser fiber

Ilaha LaserKa shaqaynta band 1.2μm waxay leeyihiin codsiyo gaar ah oo ku saabsan daawaynta sawir-qaadista, baadhista bayoolajiga, iyo ogsijiinta. Intaa waxaa dheer, waxaa loo isticmaali karaa sida ilaha bamka ee jiilka parametric ee iftiinka dhexe ee infrared iyo soo saarista iftiinka muuqda iyadoo la labanlaabayo inta jeer. Lasers-ka 1.2 μm band ayaa lagu gaaray siyaabo kala duwanlaser-state adag, oo ay ku jiraanleysarka semiconductor, Laysarka dheeman Raman, iyo leysarka fiber. Saddexdan laysarka, laser fiber-ka ayaa leh faa'iidooyinka qaab-dhismeedka fudud, tayada iftiinka wanaagsan iyo hawlgalka dabacsan, taas oo ka dhigaysa doorashada ugu fiican ee lagu dhalin karo 1.2μm laser band.
Dhawaan, kooxda cilmi-baarista ee uu hoggaamiyo Professor Pu Zhou ee Shiinaha ayaa xiiseynaya laser-ka awoodda sare leh ee 1.2μm band. Fiber awoodda sare ee haddaleysarkainta badan waa ytterbium-doped fiber lasers in band 1 μm, iyo awoodda wax soo saarka ugu badan ee 1.2 μm band waxay ku kooban tahay heerka 10 W. Shaqadooda, oo xaq u leh "High power tunable Raman fiber laser at 1.2μm waveband," wuxuu ahaa lagu daabacay Frontiers ofOptoelectronics.

FIG 1: (a) Habaynta tijaabada ee Raman fiber amplifier awood sare leh oo la hagaajin karo iyo (b) Laysarka abuur fibre Raman random la hagaajin karo oo ah 1.2 μm band. PDF: fiber fosfooraska-doped; QBH: Quartz bulk; WDM: Multixer qaybinta mawjada dhererka; SFS: isha iftiinka fibre ee superfluorescent; P1: dekedda 1; P2: dekedda 2. P3: waxay muujinaysaa dekedda 3. Isha: Zhang Yang et al., Awood sare oo la hagaajin karo Raman fiber laser at 1.2μm waveband, Frontiers of Optoelectronics (2024).
Fikradda ayaa ah in la isticmaalo saamaynta kicinta ee Raman ee fibre aan fiicneyn si loo dhaliyo leys awood sare leh ee 1.2μm band. Kala firdhinta Raman ee la kiciyay waa nidaam saddexaad oo aan toos ahayn oo u beddela sawir-qaadayaasha mawjadaha dhaadheer.

Jaantus 2: Sawirka soo-saarka RFL random-ka ee (a) 1065-1074 nm iyo (b) 1077 nm mawjadaha dhererka dhererka (Δλ waxa ay tilmaamaysaa 3 dB xariiqda dhexdeeda ah). Isha: Zhang Yang et al., Awood sare oo la hagaajin karo Raman fiber laser at 1.2μm waveband, Frontiers of Optoelectronics (2024).
Cilmi-baadhayaashu waxay isticmaaleen saamaynta kicinta ee Raman ee fayraska fosfooraska-doped si loogu beddelo fibre ytterbium-doped awood sare leh oo ah 1 μm band ilaa 1.2 μm. Calaamada Raman oo leh awood ilaa 735.8 W ayaa lagu helay 1252.7 nm, taas oo ah awooda wax soo saarka ee ugu sareysa ee 1.2 μm band fiber laser la soo sheegay ilaa maanta.

Jaantus 3: (a) Awoodda wax-soo-saarka ugu badan iyo cabbirka wax-soo-saarka caadiga ah ee hirarka kala duwan ee hirarka. (b) Wax-soo-saarka buuxa ee hirarka hirarka kala duwan, gudaha dB (Δλ waxaa loola jeedaa 3 dB lineball). Isha: Zhang Yang et al., Awood sare oo la hagaajin karo Raman fiber laser at 1.2μm waveband, Frontiers of Optoelectronics (2024).

Jaantus :4: (a) Spectrum iyo (b) sifooyinka kobaca awooda awooda sare ee Raman fibre-amplifier-ga la toosin karo oo dhererkiisu yahay 1074 nm. Isha: Zhang Yang et al., Awood sare oo la hagaajin karo Raman fiber laser at 1.2μm waveband, Frontiers of Optoelectronics (2024)