Ua atiina ae e se au Saina se 1.2μm band maualuga-mana tunable Raman fibre laser

Ua fausia e se au Saina se 1.2μm band maualuga-mana tune Ramanalava leisa

Punavai lasero loʻo faʻaogaina i le 1.2μm band o loʻo i ai ni faʻaoga tulaga ese i le photodynamic therapy, biomedical diagnostics, ma le okesene lagona. E le gata i lea, e mafai ona fa'aogaina e fai ma puna puna mo le fa'atupuina o parametric o le moli o le mid-infrared ma mo le fa'atupuina o le malamalama va'aia e ala i le fa'aluaina taimi. Lasers i le 1.2 μm band ua ausia ma eseeselasers malo malo, e aofia aisemiconductor lasers, taimane Raman lasers, ma fiber lasers. I totonu o nei lasers e tolu, o le fiber laser o loʻo i ai le lelei o le fausaga faigofie, lelei le faʻalava lelei ma le faʻaogaina o gaioiga, lea e avea ai ma filifiliga sili e gaosia ai le laser band 1.2μm.
Talu ai nei, o le au suʻesuʻe na taʻitaʻia e le Polofesa Pu Zhou i Saina e fiafia i le maualuga o le fiber lasers i le 1.2μm band. Le alava mana maualuga i le taimi neilaserse tele lava ytterbium-doped fiber lasers i le 1 μm band, ma o le malosiaga aupito maualuga i le 1.2 μm band e gata i le maualuga o le 10 W. O la latou galuega, ua faʻaigoaina "High power tunable Raman fiber laser i 1.2μm waveband," sa lomia i Frontiers ofOptoelectronics.

ATA. 1: (a) Fa'ata'ita'iga fa'ata'ita'iga o se fa'alava fa'alava Raman fa'aola maualuga ma (b) fa'alava fa'alava Raman leisa fatu i le 1.2 μm band. PDF: alava fai phosphorus; QBH: Quartz tele; WDM: Wavelength division multiplexer; SFS: fa'apogai o le alava fa'amalama; P1: taulaga 1; P2: taulaga 2. P3: faʻaalia le taulaga 3. Punavai: Zhang Yang et al., Mana maualuga tunable Raman fiber laser i 1.2μm waveband, Frontiers of Optoelectronics (2024).
O le manatu o le faʻaaogaina lea o le faʻamalosia o Raman faʻataʻapeʻapeina aafiaga i se alava passive e faʻatupu ai se leisa maualuga-mana i le 1.2μm band. Fa'aosofia le fa'ata'ape'apeina o Raman ose fa'atonuga lona tolu e fa'aliliuina photons i galu uumi.

Ata 2: Fa'ata'ita'iga fa'apitoa RFL fa'aogaina i le (a) 1065-1074 nm ma le (b) 1077 nm pamu umi (Δλ e fa'atatau i le laina laina 3 dB). Punavai: Zhang Yang et al., Mana maualuga tunable Raman fiber laser i 1.2μm waveband, Frontiers of Optoelectronics (2024).
Na faʻaaogaina e le au suʻesuʻe le faʻaosofiaina o Raman faʻataʻapeʻapeina aʻafiaga i le phosphorus-doped fiber e faʻaliliu ai se fiber ytterbium-doped maualuga malosi i le 1 μm band i le 1.2 μm band. O se faailo Raman ma le malosi e oʻo atu i le 735.8 W na maua i le 1252.7 nm, o le maualuga maualuga lea o le gaosiga o le 1.2 μm band fiber laser na lipotia mai i le taimi nei.

Ata 3: (a) Malosiaga aupito maualuga ma le fusi o alaleo fa'asa'o ile umi ole fa'ailoga. (b) Fuafuaga faʻaola atoatoa i faʻailoga eseese uumi, ile dB (Δλ e faasino ile 3 dB linewidth). Punavai: Zhang Yang et al., Mana maualuga tunable Raman fiber laser i 1.2μm waveband, Frontiers of Optoelectronics (2024).

Ata :4: (a) Alaleo ma (b) uiga fa'atupuina o le malosi o se fa'alava fa'alava Raman fa'aola maualuga i le umi o le galu o le 1074 nm. Punavai: Zhang Yang et al., Mana maualuga tunable Raman fiber laser i 1.2μm waveband, Frontiers of Optoelectronics (2024)