Nonlinear Upconversion-Rate in Er-Doped Fibers

• Authors: B. Jaskorzyńska , S. Sergeyev , M. Świłło , D. Khoptyar
• Languages of publication: EN

Abstracts

EN

Energy transfer between excited rare-earth ions has been widely used for realizing upconversion lasers and also recognized as a gain limiting factor in high-concentration Er-doped amplifiers. The energy transfer leads to upconversion of the excitation which for randomly distributed (not clustered) ions is called homogeneous upconversion. It was commonly assumed that the rate of homogeneous upconversion is a linear function of the population inversion N_2. However, recently published Monte Carlo simulations predict that the homogeneous upconversion rate is a nonlinear function of N_2 and that it, moreover, depends on the pump and signals rates. In this paper we review some of our experimental results confirming those predictions. We also propose a statistical, analytical model describing the observed homogeneous upconversion behavior in Er-doped fibers.

Keywords

EN

78.20.Bh; 78.55.-m; 42.55.Rz

Discipline

• 78.55.-m: Photoluminescence, properties and materials(for time resolved luminescence, see 78.47.jd)
• 42.55.Rz: Doped-insulator lasers and other solid state lasers
• 78.20.Bh: Theory, models, and numerical simulation

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2001
• Volume: 99
• Issue: 1
• Pages: 147-154

Dates

published

2001-01

received

2001-06-08

Contributors

author

B. Jaskorzyńska

• Royal Institute of Technology, Dept. of Electronics, Electrum 229, 164 40 Kista, Sweden

author

S. Sergeyev

• Royal Institute of Technology, Dept. of Electronics, Electrum 229, 164 40 Kista, Sweden

author

M. Świłło

• Royal Institute of Technology, Dept. of Electronics, Electrum 229, 164 40 Kista, Sweden

author

D. Khoptyar

• Royal Institute of Technology, Dept. of Electronics, Electrum 229, 164 40 Kista, Sweden

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Identifiers

DOI

10.12693/APhysPolA.99.147