نتایج جستجو برای: erbium doped fiber amplifier
تعداد نتایج: 194703 فیلتر نتایج به سال:
-In modern optical fiber communication systems, dispersion and nonlinear effect of optical fiber are the two main factors of decreasing communication quality, especially in Group Velocity Dispersion (GVD). In this paper, we use single-mode transmission fiber, Dispersion Compensation Fiber (DCF) and erbium-doped fiber amplifier (EDFA) to design a dispersion compensation optical fiber communicati...
A new route was recently proposed to modify some spectroscopic properties of rare-earth ions in silica-based fibers. We had shown the incorporation of erbium ions in amorphous dielectric nanoparticles, grown in fiber preforms. Here we present the achieved stabilization of nanometric erbium-doped dielectric nanoparticles within the core of silica fibers. We present the nanoparticle dimensional c...
A selective and sensitive quartz enhanced photoacoustic spectroscopy (QEPAS) sensor, employing an erbium-doped fiber amplifier (EDFA), and a distributed feedback (DFB) laser operating at 1582 nm was demonstrated for simultaneous detection of ammonia (NH₃) and hydrogen sulfide (H₂S). Two interference-free absorption lines located at 6322.45 cm(-1) and 6328.88 cm(-1) for NH₃ and H₂S detection, re...
In this paper, a brief summary of different methods of fabrication of optical preform and fiber is reviewed. Several methods of incorporation of erbium ions into optical preforms are studied. Characterization of the fabricated erbium doped fibers including measurements of refractive index profile, absorption, fluorescence and gain spectra and metastable lifetime are described. It is also expres...
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