Ib pab neeg Suav tau tsim ib lub 1.2μm band high-power tunable Raman fiber laser

Ib pab neeg Suav tau tsim ib lub Raman uas muaj zog tunable 1.2μm band uas muaj zog heevlaser fiber

Cov chaw laserua haujlwm hauv 1.2μm band muaj qee qhov kev siv tshwj xeeb hauv kev kho mob photodynamic, biomedical diagnostics, thiab oxygen sensing. Tsis tas li ntawd, lawv tuaj yeem siv ua cov twj tso kua mis rau kev tsim parametric ntawm lub teeb nruab nrab infrared thiab rau kev tsim lub teeb pom kev los ntawm zaus doubling. Lasers hauv 1.2 μm band tau ua tiav nrog ntau yamcov lasers khov kho, suav nrogcov laser semiconductor, pob zeb diamond Raman lasers, thiab fiber lasers. Ntawm peb lub lasers no, fiber laser muaj qhov zoo ntawm cov qauv yooj yim, lub teeb zoo thiab kev ua haujlwm yooj ywm, uas ua rau nws yog qhov kev xaiv zoo tshaj plaws los tsim 1.2μm band laser.
Tsis ntev los no, pab pawg tshawb fawb uas coj los ntawm Xibfwb Pu Zhou hauv Suav teb xav paub txog cov lasers fiber ntau zog hauv 1.2μm band. Cov fiber ntau zog tam sim nocov lasersfeem ntau yog ytterbium-doped fiber lasers hauv 1 μm band, thiab lub zog tso zis siab tshaj plaws hauv 1.2 μm band yog txwv rau qib ntawm 10 W. Lawv txoj haujlwm, hu ua "High power tunable Raman fiber laser ntawm 1.2μm waveband," tau luam tawm hauv Frontiers ntawmKev siv hluav taws xob Optoelectronics.

DUAB 1: (a) Kev sim teeb tsa ntawm lub zog siab Raman fiber amplifier thiab (b) tunable random Raman fiber seed laser ntawm 1.2 μm band. PDF: phosphorus-doped fiber; QBH: Quartz bulk; WDM: Wavelength division multiplexer; SFS: superfluorescent fiber light source; P1: chaw nres nkoj 1; P2: chaw nres nkoj 2. P3: qhia txog chaw nres nkoj 3. Qhov chaw: Zhang Yang et al., High power tunable Raman fiber laser ntawm 1.2μm waveband, Frontiers of Optoelectronics (2024).
Lub tswv yim yog siv cov nyhuv Raman scattering uas raug txhawb nqa hauv cov fiber passive los tsim cov laser muaj zog siab hauv 1.2μm band. Kev cuam tshuam Raman uas raug txhawb nqa yog qhov cuam tshuam thib peb uas tsis yog linear uas hloov cov photons mus rau cov wavelengths ntev dua.

Daim Duab 2: Cov spectra tso zis RFL random uas hloov tau ntawm (a) 1065-1074 nm thiab (b) 1077 nm twj tso kua mis wavelengths (Δλ yog hais txog 3 dB linewidth). Qhov chaw: Zhang Yang et al., High power tunable Raman fiber laser ntawm 1.2μm waveband, Frontiers of Optoelectronics (2024).
Cov kws tshawb nrhiav tau siv cov teebmeem Raman scattering uas tau txhawb nqa hauv cov fiber phosphorus-doped los hloov cov fiber ytterbium-doped muaj zog heev ntawm 1 μm band mus rau 1.2 μm band. Lub teeb liab Raman nrog lub zog txog li 735.8 W tau txais ntawm 1252.7 nm, uas yog lub zog tso zis siab tshaj plaws ntawm 1.2 μm band fiber laser tau tshaj tawm txog niaj hnub no.

Daim Duab 3: (a) Lub zog tso zis siab tshaj plaws thiab cov spectrum tso zis ib txwm muaj ntawm cov teeb liab sib txawv. (b) Cov spectrum tso zis tag nrho ntawm cov teeb liab sib txawv, hauv dB (Δλ hais txog 3 dB kab dav). Qhov chaw: Zhang Yang et al., High power tunable Raman fiber laser ntawm 1.2μm waveband, Frontiers of Optoelectronics (2024).

Daim Duab: 4: (a) Spectrum thiab (b) cov yam ntxwv ntawm kev hloov pauv zog ntawm lub zog siab Raman fiber amplifier ntawm lub zog siab ntawm 1074 nm. Qhov chaw: Zhang Yang et al., High power tunable Raman fiber laser ntawm 1.2μm waveband, Frontiers of Optoelectronics (2024)