Ua hoʻomohala kahi hui Kina i kahi 1.2μm band high-power tunable Raman fiber laser

Ua hoʻomohala kahi hui Kina i kahi Raman mana kiʻekiʻe 1.2μmfiber laser

Nā kumu laserʻO ka hana ʻana ma ka hui 1.2μm loaʻa kekahi mau noi kūikawā i ka photodynamic therapy, biomedical diagnostics, a me ka ʻike oxygen. Eia kekahi, hiki ke hoʻohana ʻia i kumu puna no ka hoʻokumu parametric o ke kukui mid-infrared a no ka hana ʻana i nā kukui ʻike ʻia e ka pālua pinepine. Ua hoʻokō ʻia nā lasers i ka band 1.2 μm me nā ʻokoʻanā laser kūlana paʻa, menā laser semiconductor, nā laser Raman daimana, a me nā laser fiber. Ma waena o kēia mau lasers ʻekolu, loaʻa i ka fiber laser ka maikaʻi o ka hoʻolālā maʻalahi, ka maikaʻi o ka beam maikaʻi a me ka hana maʻalahi, ʻo ia ke koho maikaʻi loa e hana i ka laser band 1.2μm.
ʻO kēia manawa, makemake ka hui noiʻi i alakaʻi ʻia e Professor Pu Zhou ma Kina i nā laser fiber mana kiʻekiʻe ma ka hui 1.2μm. ʻO ka fiber mana kiʻekiʻe o kēia manawanā lasersʻO ka hapa nui o ka ytterbium-doped fiber lasers i ka 1 μm band, a ʻo ka mana kiʻekiʻe loa i ka 1.2 μm band i kaupalena ʻia i ke kiʻekiʻe o 10 W. ʻO kā lākou hana, i kapa ʻia "High power tunable Raman fiber laser ma 1.2μm waveband," paʻi ʻia ma Frontiers oOptoelectronics.

FIG. 1: (a) Hoʻonohonoho hoʻokolohua o kahi mea hoʻonui Raman fiber amplifier mana kiʻekiʻe a me (b) hiki ke hoʻopaʻa ʻia ʻo Raman fiber seed laser ma 1.2 μm band. PDF: fiber-doped phosphorus; QBH: Ka nui quartz; WDM: Wavelength division multiplexer; SFS: kumu kukui fiber superfluorescent; P1: awa 1; P2: awa 2. P3: hōʻike i ke awa 3. Puna: Zhang Yang et al., High power tunable Raman fiber laser ma 1.2μm waveband, Frontiers of Optoelectronics (2024).
ʻO ka manaʻo e hoʻohana i ka hopena hoʻopuehu Raman i hoʻoulu ʻia i loko o kahi fiber passive e hoʻohua i kahi laser mana kiʻekiʻe ma ka hui 1.2μm. ʻO ka hoʻopuʻi ʻia ʻana o Raman kahi hopena nonlinear kauoha ʻekolu e hoʻololi i nā kiʻi kiʻi i nā lōʻihi hawewe lōʻihi.

Kiʻi 2: Hiki ke hoʻokō ʻia nā kikoʻī puka RFL maʻamau ma (a) 1065-1074 nm a me (b) 1077 nm mau lōʻihi hawewe (e pili ana ka Δλ i 3 dB linewidth). Source: Zhang Yang et al., High power tunable Raman fiber laser ma 1.2μm waveband, Frontiers of Optoelectronics (2024).
Ua hoʻohana nā mea noiʻi i ka hopena hoʻopuehu Raman i hoʻoulu ʻia i loko o ka phosphorus-doped fiber e hoʻohuli i kahi fiber ytterbium-doped mana kiʻekiʻe ma 1 μm band i 1.2 μm band. Ua loaʻa kahi hōʻailona Raman me ka mana a hiki i 735.8 W ma 1252.7 nm, ʻo ia ka mana kiʻekiʻe loa o ka laser 1.2 μm band fiber i hōʻike ʻia i kēia lā.

Kiʻi 3: (a) Ka mana hoʻopuka kiʻekiʻe a me ke kikoo puka maʻamau i nā lōʻihi hawewe hōʻailona like ʻole. (b) ʻO ke kiko kiko puka piha ma nā lōʻihi hawewe hōʻailona like ʻole, ma ka dB (e pili ana ka Δλ i ka laina laina 3 dB). Source: Zhang Yang et al., High power tunable Raman fiber laser ma 1.2μm waveband, Frontiers of Optoelectronics (2024).

Kiʻi: 4: (a) Spectrum a me (b) nā hiʻohiʻona hoʻololi mana o ka mana kiʻekiʻe tunable Raman fiber amplifier ma ka lōʻihi hawewe o 1074 nm. Puna: Zhang Yang et al., Ka mana kiʻekiʻe Raman fiber laser ma 1.2μm waveband, Frontiers of Optoelectronics (2024)