Results 181 to 190 of about 1,023,353 (233)
Some of the next articles are maybe not open access.
A global design of an erbium-doped fiber and an erbium-doped fiber amplifier
Optics & Laser Technology, 2004Abstract A global design of an erbium-doped fiber and an open-loop erbium-doped fiber amplifier (EDFA) in a steady-state operation is discussed by applying genetic algorithms. Taking a signal gain and a bandwidth as objective functions, 7 parameters of the EDFA (erbium concentration, core radius, erbium-doped radius, refractive index difference ...
openaire +1 more source
Proceedings of Japan International Electronic Manufacturing Technology Symposium, 2005
Erbium-doped fiber amplifiers(EDFAs) are remarkable technology as direct optical amplification devices. It has been recently demonstrated that the EDFA can be practically applicable to optical trunk transmission systems and optical distribution systems.
T. Kakinuma, S. Shikii
openaire +1 more source
Erbium-doped fiber amplifiers(EDFAs) are remarkable technology as direct optical amplification devices. It has been recently demonstrated that the EDFA can be practically applicable to optical trunk transmission systems and optical distribution systems.
T. Kakinuma, S. Shikii
openaire +1 more source
Modeling of erbium doped fiber ring laser
Optics Communications, 1997Abstract A numerical model for the analysis of the continuous wave operation of an erbium doped fiber ring laser is presented. The model has been obtained by developing the so called spectral one already presented for the analysis of erbium doped fiber amplifiers (EDFA).
CUCINOTTA, Annamaria +4 more
openaire +2 more sources
Optical Amplifiers and Their Applications, 2005
Simple experiments are used to determine ion-pairs percentage and macroscopic homogeneous upconversion in highly erbium-doped fibers. Using these parameters in a Giles-based model enable to predict Optical-Power-Conversion-Efficiency of WDM-EDFAs with a fair agreement.
C. Simonneau +3 more
openaire +1 more source
Simple experiments are used to determine ion-pairs percentage and macroscopic homogeneous upconversion in highly erbium-doped fibers. Using these parameters in a Giles-based model enable to predict Optical-Power-Conversion-Efficiency of WDM-EDFAs with a fair agreement.
C. Simonneau +3 more
openaire +1 more source
Optics and Spectroscopy, 2008
A new criterion—transmission capacity in the unsaturated gain regime—is proposed for comparing the quality of glasses for erbium-doped fiber amplifiers, considered as an element of an optical communication system. It is shown that, according to the criterion for the highest transmission capacity, amplifiers based on alumino-phosphate-silicate and zinc ...
Yu. A. Varaksa +2 more
openaire +1 more source
A new criterion—transmission capacity in the unsaturated gain regime—is proposed for comparing the quality of glasses for erbium-doped fiber amplifiers, considered as an element of an optical communication system. It is shown that, according to the criterion for the highest transmission capacity, amplifiers based on alumino-phosphate-silicate and zinc ...
Yu. A. Varaksa +2 more
openaire +1 more source
Performance analysis of erbium doped fiber amplifiers
2009 IEEE 17th Signal Processing and Communications Applications Conference, 2009In this study, gain characteristics of erbium doped fiber amplifiers, EDFAs, which are important elements of optical communications over C and L bands, are examined. The factors that effect the gain of an EDFA are given and the differences among some EDFA designs which operate on various wavelengths are determined.
Arisan, Buenyamin +3 more
openaire +2 more sources
Characterization of erbium doped fibers
2009In this thesis the theory of operation of single-mode erbium-doped fiber amplifiers pumped at 980 nm is described. Details of the derivation of the general rate equation for the propagation of signal, pump, and amplified spontaneous emission are provided. Based on this equation, and McCumber's theory of phonon-terminated optical masers, two closed form
openaire +1 more source
Laser Physics, 2009
Two erbium-doped fibers (EDFs) with different densities, which can make the erbium-doped fiber amplifier (EDFA) achieve the same output power, have been irradiated by 60Co at the same rate and same total dose. In addition, the irradiation effect on EDFA composed by different density EDFs is firstly analyzed in this paper.
M. Li +6 more
openaire +1 more source
Two erbium-doped fibers (EDFs) with different densities, which can make the erbium-doped fiber amplifier (EDFA) achieve the same output power, have been irradiated by 60Co at the same rate and same total dose. In addition, the irradiation effect on EDFA composed by different density EDFs is firstly analyzed in this paper.
M. Li +6 more
openaire +1 more source
Compact Brillouin/Erbium Fiber Laser Using Commercialized Erbium-doped Fibers
International Photonics and OptoElectronics Meetings, 2014We demonstrate a compact Brillouin/erbium fiber laser using commercialized erbium-doped fiber for both the nonlinear and linear gain. It presents single frequency, low phase noise (-124 dB/Hz1/2), and stable fast tuning.
Mo Chen +4 more
openaire +1 more source
Erbium Doped Holey Fiber Devices
Optical Amplifiers and Their Applications/Integrated Photonics Research, 2004We fabricated an erbium-doped holey fiber, and demonstrate an all-fiber laser with ultra-low threshold (~0.5mW) and amplifier providing 47 dB of internal gain. Incorporating this amplifier within a ring-laser we demonstrate a tuning range over100nm.
Taichi Kogure +3 more
openaire +1 more source