Propagation characteristics of femtosecond pulses in erbium-doped monomode optical fibers

1991 ◽  
Vol 27 (1) ◽  
pp. 101-113 ◽  
Author(s):  
X. Zhu ◽  
W. Sibbett
Keyword(s):  
Optical Fibers ◽  
Femtosecond Pulses ◽  
Propagation Characteristics ◽  
Erbium Doped

Amplification of frequency-modulated pulses in graded dispersion erbium-doped optical fibers

2012 ◽  
Vol 38 (11) ◽  
pp. 1020-1023
Author(s):  
I. O. Zolotovskii ◽  
D. A. Korobko ◽  
O. G. Okhotnikov ◽  
D. I. Sementsov ◽  
A. A. Sysolyatin ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Erbium Doped

scholarly journals Phase-Separated Alumina–Silica Glass-Based Erbium-Doped Fibers for Optical Amplifier: Material and Optical Characterization along with Amplification Properties

Fibers ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 67 ◽  
Author(s):  
Mukul Paul ◽  
Alexander Kir’yanov ◽  
Yuri Barmenkov ◽  
Mrinmay Pal ◽  
Randall Youngman ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Silica Glass ◽  
Chemical Vapor ◽  
Optical Characterization ◽  
Optical Amplifier ◽  
Inhomogeneous Broadening ◽  
Coordination Numbers ◽  
Erbium Doped ◽  
Doped Fibers ◽  
Solution Doping

In this paper, we present phase-separated alumina–silica glass-based Er3+-doped optical fibers made by a modified chemical vapor deposition (MCVD) process in combination with a solution doping (SD) technique. The fibers exhibited better optical performance than other silica-based host glasses—both in terms of spectral broadening and flattening of the gain spectra in the C band (1530–1560 nm) region—as well as an improved lifetime. These phase-separated erbium-doped fibers (EDF) promoted longer Er–O bond lengths and also hexa- and penta-coordinated Al3+ ions instead of the fourfold coordination found in non-phase-separated EDF. It was observed that the higher coordination numbers of Er3+ and Al3+ ions in phase-separated glass hosts led to more homogeneous and inhomogeneous broadening, resulting in better flatness of the gain spectrum with 1.2 dB more gain compared to the non-phase-separated EDF.

scholarly journals On the Enlargement of the Emission Spectra from the 4I13/2 Level of Er3+ in Silica-Based Optical Fibers through Lanthanum or Magnesium Co-Doping

Ceramics ◽  
2018 ◽  
Vol 1 (2) ◽  
pp. 364-374 ◽  
Author(s):  
Manuel Vermillac ◽  
Jean-François Lupi ◽  
Stanislaw Trzesien ◽  
Michele Ude ◽  
Wilfried Blanc
Keyword(s):  
Optical Fiber ◽  
Spontaneous Emission ◽  
Optical Fibers ◽  
Emission Spectra ◽  
Magnesium Doping ◽  
Co Doping ◽  
Erbium Doped ◽  
Optical Fiber Amplifiers ◽  
Linewidth Broadening ◽  
Solution Doping

Improving optical fiber amplifiers requires the elaboration and use of new materials and new compositions. In this sense, we prepared erbium-doped optical fiber samples that were co-doped with magnesium or lanthanum by gradual-time solution doping. Doping concentrations and thermal processes induce the formation of nanoparticles. The effect of lanthanum and magnesium contents on the width of the spontaneous emission of the 4 I 13 / 2 level of Er 3 + was characterized in the nanoparticle-rich fiber samples. For that purpose, the width was characterized by the effective linewidth and the full-width at half-maximum (FWHM). The results indicate the robustness of the effective linewidth to strong variations in the intensity profiles of the 4 I 13 / 2 spontaneous emission. Increasing the doping concentrations of both magnesium and lanthanum increases the FWHM and the effective linewidth, along with optical losses. Results show that the fabrication of nanoparticle-rich optical fibers through lanthanum or magnesium doping induces an FHWM broadening of 54% and 64%, respectively, or an effective linewidth broadening of 59% (for both elements) while maintaining a transparency that is compatible with fiber laser and amplifier applications.

Measurement of the nonlinear coefficient of optical fibers by femtosecond pulses and spectral interferometry

2003 ◽  
Vol 15 (8) ◽  
pp. 1123-1125
Author(s):  
C. Liberale ◽  
L. Tartara ◽  
I. Cristiani ◽  
M. Cartasegna ◽  
V. Degiorgio
Keyword(s):  
Optical Fibers ◽  
Nonlinear Coefficient ◽  
Femtosecond Pulses ◽  
Spectral Interferometry

Brillouin gain spectrum dependences on temperature and strain in erbium-doped optical fibers with different erbium concentrations

2013 ◽  
Vol 102 (19) ◽  
pp. 191906 ◽  
Author(s):  
Mingjie Ding ◽  
Neisei Hayashi ◽  
Yosuke Mizuno ◽  
Kentaro Nakamura
Keyword(s):  
Optical Fibers ◽  
Gain Spectrum ◽  
Erbium Doped ◽  
Brillouin Gain

INTEGRABLE ASPECTS AND SOLITON-LIKE SOLUTIONS OF AN INHOMOGENEOUS COUPLED HIROTA–MAXWELL–BLOCH SYSTEM IN OPTICAL FIBERS WITH SYMBOLIC COMPUTATION

2010 ◽  
Vol 25 (16) ◽  
pp. 1365-1381 ◽  
Author(s):  
YU-SHAN XUE ◽  
BO TIAN ◽  
HAI-QIANG ZHANG ◽  
LI-LI LI
Keyword(s):  
Symbolic Computation ◽  
Optical Fibers ◽  
Soliton Solutions ◽  
Graphical Analysis ◽  
Envelope Soliton ◽  
Fiber Communication ◽  
Erbium Doped ◽  
Higher Order Dispersion ◽  
Interaction Behaviors ◽  
Soliton Excitation

For describing wave propagation in an inhomogeneous erbium-doped nonlinear fiber with higher-order dispersion and self-steepening, an inhomogeneous coupled Hirota–Maxwell–Bloch system is considered with the aid of symbolic computation. Through Painlevé singularity structure analysis, the integrable condition of such a system is analyzed. Via the Painlevé-integrable condition, the Lax pair is explicitly constructed based on the Ablowitz–Kaup–Newell–Segur scheme. Furthermore, the analytic soliton-like solutions are obtained via the Darboux transformation which makes it exercisable to generate the multi-soliton solutions in a recursive manner. Through the graphical analysis of some obtained analytic one- and two-soliton-like solutions, our concerns are mainly on the envelope soliton excitation, the propagation features of optical solitons and their interaction behaviors in actual fiber communication. Finally, the conservation laws for the system are also presented.

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