Spectroscopic characteristics and modeling of the Pr3+ doped fluoride fiber amplifier

Alban Remillieux; Bernard Jacquier

doi:10.1117/12.258966

20 November 1996 Spectroscopic characteristics and modeling of the Pr3+ doped fluoride fiber amplifier

Alban Remillieux, Bernard Jacquier

Proceedings Volume 2841, Doped Fiber Devices; (1996) https://doi.org/10.1117/12.258966
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

We develop a simple method leading to the determination of important parameters for the Praseodymium doped fluoride fiber amplifier (PDFFA), such as the non-radiative energy transfer upconversion coefficient or pump excited state absorption cross section. We apply this method to five ZBLAN bulks of different concentration and to a ZBLAN: Pr³⁺ 500 ppmWt single-mode fiber. The resulting non-radiative energy transfer upconversion coefficients cT₁ are 5 s^-1 at 500 ppmWt and 9 s^-1 at 1000 ppmWt. When the pump wavelength is set at 1017 nm, (sigma) _ESAp is very weak: less than 5.10^-26 cm². We measure that the ³P₀ population varies to the 2.7^th pump power. We conclude that the upconversion mechanism leading to the excitation of ³P_0-1-¹I₆ states in the PDFFA is different from all that has been previously suggested and we propose a three photon process. According to this study, a new model of the PDFFA is suggested.

Citation Download Citation

Alban Remillieux and Bernard Jacquier "Spectroscopic characteristics and modeling of the Pr3+ doped fluoride fiber amplifier", Proc. SPIE 2841, Doped Fiber Devices, (20 November 1996); https://doi.org/10.1117/12.258966

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