graphene metamaterial, multiband transmission, switchability, tunability, refractive index sensing
Fiber lasers, single-longitudinal-mode, self-injection locked
Single-longitudinal-mode, Tm3+-doped fiber laser, compound-ring cavity filter, self-injection feedback, narrow linewidth.
Linewidth reduction,thulium-holmium co-doped fiber laser,self-injection locking
Hybrid modes, Few-mode fibers, Mode recognition, Mode decomposition, Convolutional neural network
fiber laser, photonic crystal fiber, comb filter
Few-mode fiber, hollow-core antiresonant fiber, modal filtering
Metamaterials, metamaterial absorber, Wood anormaly, meta-grating, refractive index sensing.
Single longitudinal mode, narrow linewidth, thulium-doped fiber laser, cascaded dual-coupler double-ring cavity filter, relative intensity noise
2μm, Single Frequency, Narrow, Linewidth, Composite Cavity, MOPA
Multi-wavelength Laser, Optical fiber filter, Few-moder fiber, Sita cavity, High-order Mode transmission.
Single-longitudinal-mode, Thulium-doped fiber laser, MOPA, 2 μm.
high-order transverse mode, few-mode fiber grating, transverse mode filter, optical fiber laser.
Thulium-doped fiber laser, Single-longitudinal-mode, Cascaded dual-ring composite cavity filter, Relative intensity noise, Narrow linewidth