Gulu lachi China lapanga gulu la 1.2μm lamphamvu kwambiri la Raman fiber laser

Gulu lachi China lapanga Raman yothamanga kwambiri ya 1.2μm bandlaser fiber

Magwero a laseromwe amagwira ntchito mu bandi ya 1.2μm ali ndi ntchito zina zapadera mu Photodynamic therapy, biomedical diagnostics, ndi sensing oxygen. Kuphatikiza apo, atha kugwiritsidwa ntchito ngati magwero a pampu popangira kuwala kwapakati pa infrared komanso kupanga kuwala kowoneka ndi kuwirikiza kawiri. Ma lasers mu gulu la 1.2 μm akwaniritsidwa mosiyanasiyanama lasers olimba, kuphatikizapolaser semiconductor, diamondi Raman lasers, ndi fiber lasers. Pakati pa ma lasers atatuwa, fiber laser ili ndi ubwino wamapangidwe osavuta, mtengo wabwino wamtengo wapatali komanso ntchito yosinthika, zomwe zimapangitsa kukhala chisankho chabwino kwambiri kupanga 1.2μm band laser.
Posachedwapa, gulu lofufuza lotsogozedwa ndi Pulofesa Pu Zhou ku China ali ndi chidwi ndi ma laser amphamvu kwambiri mu gulu la 1.2μm. The panopa mkulu mphamvu CHIKWANGWANIlasersmakamaka ytterbium-doped CHIKWANGWANI lasers mu gulu 1 μm, ndipo pazipita linanena bungwe mphamvu mu gulu 1.2 μm ndi malire kwa mlingo wa 10 W. Ntchito yawo, yakuti "High mphamvu tunable Raman CHIKWANGWANI laser pa 1.2μm waveband," anali lofalitsidwa mu Frontiers ofZithunzi za Optoelectronics.

CHITH. 1: (a) Kukonzekera koyeserera kwamphamvu yamphamvu yochulukirachulukira ya Raman fiber amplifier ndi (b) yosinthika mosasintha ya Raman fiber seed laser pa 1.2 μm band. PDF: phosphorus-doped fiber; QBH: Kuchuluka kwa quartz; WDM: Wavelength division multiplexer; SFS: superfluorescent CHIKWANGWANI kuwala gwero; P1: doko 1; P2: doko 2. P3: limasonyeza doko 3. Source: Zhang Yang et al., High mphamvu tunable Raman fiber laser pa 1.2μm waveband, Frontiers of Optoelectronics (2024).
Lingaliro ndikugwiritsa ntchito chiwongolero chomwaza cha Raman mu ulusi wopanda pake kuti apange laser yamphamvu kwambiri mu gulu la 1.2μm. Kubalalika kwa Raman Kulimbikitsidwa ndi njira yachitatu yopanda mzere yomwe imatembenuza ma photon kukhala mafunde atalitali.

Chithunzi 2: Tunable random RFL output spectra at (a) 1065-1074 nm ndi (b) 1077 nm pump wavelengths (Δλ amatanthauza 3 dB linewidth). Gwero: Zhang Yang et al., Mphamvu yayikulu yosinthika ya Raman fiber laser pa 1.2μm waveband, Frontiers of Optoelectronics (2024).
Ofufuzawo adagwiritsa ntchito cholimbikitsa chomwaza cha Raman mu fiber-doped fiber kuti asinthe ulusi wamphamvu kwambiri wa ytterbium pa 1 μm band kupita ku 1.2 μm band. Chizindikiro cha Raman chokhala ndi mphamvu yofikira ku 735.8 W chinapezedwa pa 1252.7 nm, yomwe ndi mphamvu yapamwamba kwambiri ya 1.2 μm band fiber laser yomwe yanenedwa mpaka pano.

Chithunzi 3: (a) Mphamvu yayikulu yotulutsa ndi mawonekedwe owoneka bwino pamawu osiyanasiyana amawu. (b) Chiwonetsero chonse chotulutsa pamawu osiyanasiyana a siginecha, mu dB (Δλ amatanthauza 3 dB mzere). Gwero: Zhang Yang et al., Mphamvu yayikulu yosinthika ya Raman fiber laser pa 1.2μm waveband, Frontiers of Optoelectronics (2024).

Chithunzi :4: (a) Sipekitiramu ndi (b) kusinthika kwamphamvu kwamphamvu yamphamvu yamagetsi yamagetsi ya Raman fiber amplifier pamtunda wopopa wa 1074 nm. Gwero: Zhang Yang et al., Mphamvu yayikulu yosinthika ya Raman fiber laser pa 1.2μm waveband, Frontiers of Optoelectronics (2024)