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We studied multiwavelength erbium-doped fiber lasers with intensity-dependent loss using rate equations. Pump power, cavity loss, the phase shift and minimum transmission of the intensity-dependent loss are varied to characterize the laser dynamics.
We report the fabrication of extremely short linear-cavity distributed Bragg reflector fiber lasers (DBR-FLs). It has a total length of 7 mm, the shortest FL being reported. The FLs are characterized in details. We constructed a FL sensor array that has great potentials for large-scale, high sensitivity sensing applications.
We propose and demonstrate a stable single-longitudinal-mode lanthanum-codoped bismuth oxide-based erbium doped fiber ring laser. The combination of a free-space thin-film filter and a Lyot filter enable single longitudinal mode efficiency.
We investigate the temperature property of a polarization-maintaining photonic crystal fiber based Sagnac interferometer. The temperature induced air pressure effect inside air holes of the fiber has been studied, from room temperature to 200 °C.
We demonstrate a high fundamental repetition rate erbium-doped fiber ring laser operated in strong normal dispersion regime passively mode-locked by the nonlinear polarization rotation technique. A novel scheme of using a polarization beam splitter as both the pump input coupler and the fiber laser output coupler is employed to increase the repetition rate of the fiber laser. Gain-guided solitons...
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