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搜索结果: 1-15 共查到erbium相关记录19条 . 查询时间(0.078 秒)
Aim: The present study evaluated the magnitude of temperature changes in the tooth during cavitation produced by an Er,Cr:YSGG laser. Methods: The root canal of a single extracted maxillary canine was...
A multiwavelength fiber ring laser that is based on an S-band erbium-doped fiber amplifier (EDFA) and a semiconductor optical amplifier (SOA) is developed. An optical switch is used to switch the mult...
The relation between spontaneous and induced emission, and to some extend amplified spontaneous emission in an optical fiber, due to its very elongated active media shape (pencil-like shape) is diff...
We propose normal dispersion polarization-maintaining Erbium doped fibers (EDFs) for short pulse amplification reducing nonlinearity and optimizing chromatic dispersion simultaneously. Evaluations of ...
Experiments were made of the gamma-ray irradiation effect on the dynamic performance of erbium-doped fiber amplifiers (EDFAs). The frequency responses of EDFAs before and after irradiation are depen...
In this paper, the effect of spectral hole burning (SHB) on the feedforward control of an erbium–doped fiber amplifier (EDFA) is investigated. A novel experimental setup allowing to verify a mathemati...
We demonstrate a stable and tunable single-longitudinal-mode SOA-EDF ring laser for high-speed data transmission systems. The laser is constructed by incorporating an SOA into the EDF ring cavity. T...
Original emissions in nanostructured silica-zirconia based optical fibers doped with erbium and ytterbium ions are presented. The influence of the nanostructure on the luminescence properties is highl...
We present a new approach to mitigate the gain transients in remote Erbium Doped Fibre Amplifiers by means of pre-distortion of data packets at the ONU, allowing a strong reduction (30%) of the packet...
We demonstrate a stable 10GHz harmonically modelocked laser employing a 151cm-long bismuth-based highly nonlinear erbium-doped fiber and a bandwidth-variable tunable filter. The wavelength tuning rang...
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 ena...
In this paper, we propose a multiwavelength erbium-doped fiber laser (MW-EDFL). The configuration of the MW-EDFL consists of several linear Fabry–Perot (FP) cavities and a master-oscillation-power-amp...
Objective: To compare the effects of erbium-doped yttrium aluminum garnet (Er:YAG) laser ablation and of phosphoric acid etching on the in vitro acid resistance of bovine enamel. Materials and Meth...
Objective: To test the shear bond strength, surface characteristics, and fracture mode of brackets that are bonded to enamel etched with an erbium, chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG...
Eighty-one channels spaced by 50GHz and modulated at 40Gbit/s are transmitted over 11520km, thanks to RZ PDM-BPSK modulation, coherent detection, and a new large effective area fibre.

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