Design of high gain Er3+-Yb3+-Ce3+ co-doped ZELA fluoride glass waveguide amplifier

This paper reports an accurate design of Er3+-Yb3+-Ce3+ doped ZrF4-ErF3-LaF3-AlF3 (ZELA) fluoride glass channel amplifier operating in the third window of the telecommunication systems. By considering measured spectroscopic and optical parameters, we demonstrate the feasibility of a novel optical waveguide amplifier exhibiting high gain and low noise figure. The electromagnetic investigation has been carried-out by employing a full-vector Finite Element Method (FEM) solver. The mode electromagnetic field, calculated at different wavelengths, constitutes the input data for the home-made numerical code which solves both the power propagation and population rate equations via a Runge-Kutta based iterative algorithm. The dependence of the up-conversion coefficients on erbium concentration are taken into account. In the simulations, the core shape, the waveguide length, the input pump and signal powers, the erbium and the ytterbium concentration are varied with the aim to optimize the amplifier performance. The goal of achieving high gain with a short device length is demonstrated. In particular, the simulation results show that the waveguide amplifier exhibits an optimal internal gain value close to 22.5 dB and a noise figure of 4.1 dB for a waveguide amplifier 5.5 cm long, an erbium concentration of NEr=2.5×1026 ions/m3, ytterbium concentration NYb=2.4×1026 ions/m3, NCe=6×1026 ions/m3, an input pump power Pp=100 mW and an input signal power Ps=1 μW.

[1]  Douglas R. MacFarlane,et al.  Energy exchange processes in Er3+-doped fluorozirconate glasses , 1999 .

[2]  Y. Jaouen,et al.  Eight-wavelength Er-Yb doped amplifier: combiner/splitter planar integrated module , 1999, IEEE Photonics Technology Letters.

[3]  Likarn Wang,et al.  Gain enhancement of L-band EDFA by using residual pump power in a three-stage configuration , 2007 .

[4]  A D'Orazio,et al.  Refinement of Er3+-doped hole-assisted optical fiber amplifier. , 2005, Optics express.

[5]  F. Prudenzano,et al.  Erbium-doped hole-assisted optical fiber amplifier: design and optimization , 2005, Journal of Lightwave Technology.

[6]  R.R.A. Syms,et al.  Fiber-device-fiber gain from a sol-gel erbium-doped waveguide amplifier , 2002, IEEE Photonics Technology Letters.

[7]  Fuxi Gan,et al.  Optical properties of fluoride glasses: a review , 1995 .

[8]  J.-M.P. Delavaux,et al.  Amplifying four-wavelength combiner, based on erbium/ytterbium-doped waveguide amplifiers and integrated splitters , 1997, IEEE Photonics Technology Letters.

[9]  Mitsuhiro Higashihata,et al.  Influence of Yb3+ and Ce3+ codoping on fluorescence characteristics of Er3+-doped fluoride glass under 980 nm excitation , 2004 .

[10]  C. Duverger-Arfuso,et al.  Erbium doped fluoride glass–ceramics waveguides fabricated by PVD , 2008 .

[11]  Valentina F. Kokorina,et al.  Glasses for Infrared Optics , 1996 .

[12]  Jean-Luc Adam,et al.  Fluoride glass research in France: fundamentals and applications , 2001 .

[13]  Jacques Lucas,et al.  FLUORIDE GLASSES FOR MODERN OPTICS , 1995 .

[14]  Animesh Jha,et al.  Multiple rare earth emissions in a multicore tellurite fiber with a single pump wavelength. , 2007, Optics express.

[15]  Nasser N Peyghambarian,et al.  Singlemode Er:Yb waveguide laser array at 1.5 [micro sign]m , 2001 .

[16]  Francesco Prudenzano,et al.  Design of Er 3þ doped SiO 2 -TiO 2 planar waveguide amplifier , 2003 .

[17]  J.-M.P. Delavaux,et al.  Integrated optics erbium-ytterbium amplifier system in 10-Gb/s fiber transmission experiment , 1997, IEEE Photonics Technology Letters.

[18]  Animesh Jha,et al.  Enhancement in pump inversion efficiency at 980 nm in Er(3+), Er(3+)/Eu(3+)+ and Er(3+)/Ce(3+) doped tellurite glass fibers. , 2006, Optics express.

[19]  Xiang Zhou,et al.  Performance comparison of an 80-km-per-span EDFA system and a 160-km hut-skipped all-Raman system over standard single-mode fiber , 2006, Journal of Lightwave Technology.

[20]  J.-M.P. Delavaux,et al.  High-performance integrated erbium/sup +3/-ytterbium/sup +3/ codoped glass waveguide laser , 1997, IEEE Photonics Technology Letters.

[21]  Lijie Qiao,et al.  ASE Analysis and Correction for EDFA Automatic Control , 2007, Journal of Lightwave Technology.

[22]  M. Romero,et al.  S-C-L triple-band double-pass erbium-doped silica fiber amplifier with an embedded DCF module for CWDM applications , 2006, Journal of Lightwave Technology.