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

Ib pab neeg Suav tau tsim 1.2μm band high-power tunable Ramanfiber ntau laser

Laser qhov chawkev khiav hauj lwm hauv 1.2μm band muaj qee qhov kev siv tshwj xeeb hauv kev kho photodynamic, biomedical diagnostics, thiab oxygen sensing. Tsis tas li ntawd, lawv tuaj yeem siv los ua cov twj tso kua mis rau cov cim cim ntawm nruab nrab-infrared lub teeb thiab tsim kom pom lub teeb pom kev los ntawm ntau zaus ob npaug. Lasers nyob rau hauv 1.2 μm band tau tiav nrog sib txawvsolid-state lasers, suav nrogsemiconductor lasers, pob zeb diamond Raman lasers, thiab fiber ntau lasers. Ntawm peb lub lasers no, fiber ntau laser muaj qhov zoo ntawm cov qauv yooj yim, cov nqaj zoo thiab kev ua haujlwm yooj yim, 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 coj los ntawm Xib Fwb Pu Zhou hauv Suav teb xav tau lub zog fiber ntau lasers hauv 1.2μm band. Tam sim no muaj zog fiber ntaulasersyog ytterbium-doped fiber ntau lasers nyob rau hauv 1 μm band, thiab lub siab tshaj plaws tso zis hwj chim nyob rau hauv lub 1.2 μm band yog txwv rau theem ntawm 10 W. luam tawm nyob rau hauv Frontiers ntawmOptoelectronics.

FIG. 1: (a) Kev sim teeb tsa ntawm lub zog loj tunable Raman fiber ntau amplifier thiab (b) tunable random Raman fiber noob laser ntawm 1.2 μm band. PDF: phosphorus-doped fiber ntau; QBH: Quartz tej; WDM: Wavelength faib multiplexer; SFS: superfluorescent fiber ntau lub teeb; P1: chaw nres nkoj 1; P2: chaw nres nkoj 2. P3: qhia chaw nres nkoj 3. Source: Zhang Yang li al., Lub zog siab tunable Raman fiber ntau laser ntawm 1.2μm waveband, Frontiers of Optoelectronics (2024).
Lub tswv yim yog siv cov nyhuv Raman tawg ua rau lub zog ua kom muaj zog los ua kom muaj zog laser hauv 1.2μm band. Stimulated Raman scattering yog qhov thib peb-order nonlinear nyhuv uas hloov photons mus rau lub wavelengths ntev dua.

Daim duab 2: Tunable random RFL tso zis spectra ntawm (a) 1065-1074 nm thiab (b) 1077 nm twj tso kua mis wavelengths (Δλ hais txog 3 dB linewidth). Source: Zhang Yang li al., Lub zog loj tunable Raman fiber ntau laser ntawm 1.2μm waveband, Frontiers of Optoelectronics (2024).
Cov kws tshawb fawb tau siv cov nyhuv Raman tawg tawm hauv cov phosphorus-doped fiber ntau los hloov lub zog ytterbium-doped fiber ntau ntawm 1 μm band rau 1.2 μm band. Raman teeb liab nrog lub zog txog li 735.8 W tau txais ntawm 1252.7 nm, uas yog lub zog tso zis ntau tshaj plaws ntawm 1.2 μm band fiber ntau laser qhia rau hnub tim.

Daim duab 3: (a) Lub zog tso zis ntau tshaj plaws thiab cov khoom tso tawm ib txwm muaj ntawm cov teeb liab sib txawv wavelengths. (b) Tag nrho cov zis spectrum ntawm cov teeb liab sib txawv wavelengths, hauv dB (Δλ hais txog 3 dB linewidth). Source: Zhang Yang li al., Lub zog loj tunable Raman fiber ntau laser ntawm 1.2μm waveband, Frontiers of Optoelectronics (2024).

Daim duab : 4: (a) Spectrum thiab (b) lub zog evolution yam ntxwv ntawm lub zog loj tunable Raman fiber ntau amplifier ntawm lub twj tso kua mis wavelength ntawm 1074 nm. Source: Zhang Yang li al., Lub zog loj tunable Raman fiber ntau laser ntawm 1.2μm waveband, Frontiers of Optoelectronics (2024)