نتایج جستجو برای: erbium doped

تعداد نتایج: 49336  

Journal: :Optics express 2011
Foued Amrani Mohamed Salhi Hervé Leblond Adil Haboucha François Sanchez

We report a novel spontaneous soliton pattern formation in a figure-of-eight passively mode-locked erbium-doped double-clad fiber laser. It consists in a condensate phase in which there is almost periodic arrangement of alternate crystal and liquid soliton phases. Thanks to an adapted ansatz for the electric field, we perform a reconstruction allowing to clearly identify the soliton distributio...

2017
Sébastien Cueff Christophe Labbé Julien Cardin Khalil Hijazi Jean-Louis Doualan Olivier Jambois Blas Garrido Richard Rizk

Sébastien Cueff, Christophe Labbé, Julien Cardin, Khalil Hijazi, Jean-Louis Doualan, et al.. Effects of the thickness on the properties of erbium-doped silicon-rich silicon oxide thin films. physica status solidi (c), Wiley, 2011, E-MRS 2010 Spring Meeting – Symposium I: Advanced Silicon Materials Research for Electronic and Photovoltaic Applications II • E-MRS 2010 Spring Meeting – Symposium J...

Journal: :Optics letters 2003
John B Schlager Berton E Callicoatt Richard P Mirin Norman A Sanford David J Jones Jun Ye

Ultralow jitter pulse trains are produced from a passively mode-locked, erbium/ytterbium co-doped, planar waveguide laser by use of high-bandwidth feedback control acting on the physical cavity length and optical pump power. Synchronization of a 750-MHz, fundamentally mode-locked laser to an external clock signal yields an ultralow, root-mean-square relative timing jitter of 14.4 fs integrated ...

Journal: :Optics letters 1996
V Binjrajka C C Chang A W Emanuel D E Leaird A M Weiner

We demonstrate the use of a femtosecond pulse-shaping apparatus for electronically programmable phase filtering of amplified spontaneous emission from an erbium-doped fiber amplifier. Pulse shaping applied to a broadband incoherent light (noise) input results in reshaped noise, with a specially tailored electric field correlation function. Our experiments clearly reveal that phase filtering can...

Journal: :Optics express 2014
Alexandre Fafin Julien Cardin Christian Dufour Fabrice Gourbilleau

We present a comparative study of the gain achievement in a waveguide whose active layer is constituted by a silica matrix containing silicon nanograins acting as sensitizer of either neodymium ions (Nd3+) or erbium ions (Er3+). By means of an auxiliary differential equation and finite difference time domain (ADE-FDTD) approach that we developed, we investigate the steady states regime of both ...

Journal: :Scientific Reports 2021

Abstract A hybrid Raman-erbium random fiber laser with a half-open cavity assisted by chirped artificially controlled backscattering reflectors is presented. combination of 2.4 km-long dispersion compensating two highly erbium-doped pieces 5 m length were used as gain media. single emission line centered at 1553.8 nm an optical signal to noise ratio 47 dB obtained when pumped 37.5 dBm. full wid...

2000
A. Polman

We present an investigation of Er photoluminescence in Y2O3 waveguides codoped with Eu . As a function of europium concentration we observe an increase in decay rate of the erbium I11/2 energy level and an increase of the ratio of photoluminescence emission from the I13/2 and I11/2 states. Using a rate equation model, we show that this is due to an energy transfer from the I11/2→I13/2 transitio...

2012
Janez Diaci Boris Gaspirc

Erbium-doped solid-state laser systems have become an established tool in dentistry. The two most commonly used Erbium lasers in dentistry are Er:YAG and Er,Cr:YSGG, with a subtle but important difference in their respective laser wavelengths. There is also an important difference in the type of technology they utilize to energize the flashlamps. The conventional PFN (Pulse Forming Network) pul...

Journal: :IEEE Sensors Journal 2021

A temperature sensor based on erbium-doped fiber cascaded peanut taper (EDFCPT) structure in ring laser (FRL) cavity is proposed and studied. The was fabricated by fiber. cladding mode core interference the strong thermo-optical effect of were used to realize high sensitivity measurement temperature. thermal effects EDFCPT a broadband super-continuous light source studied compared experimentall...

Journal: :Suplemento de la revista mexicana de física 2021

Resonance properties of the all-fiber ring cavity filled with nonlinear material - saturable rare-earth-doped fiber are analyzed and experimentally investigated. Unlike earlier investigated erbium-doped at 1550nm where optical absorption photo-induced change (saturation) is observed only, ytterbium-doped 1064nm demonstrates saturation refractive index mainly. For this configuration we report ex...

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