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Proceedings Paper

Modelling of short-wavelength operation of Nd3+doped fluorozirconate glass fiber laser
Author(s): M. Klimczak; P. Witonski; A. Ryter; R. Piramidowicz
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Paper Abstract

In this paper we analyze the threshold violet and ultra-violet laser operation in Nd3+ doped ZBLAN fibers, using relatively fast and accurate method, based on measured spectroscopic parameters like fluorescence lifetimes and emissiod/absorption cross-sections spectra. Our approach, which is based on energy theorem and threshold field approximation, extends the model presented in [1] by taking into account the longitudinal and transverse field distribution of the fiber laser mode. Specifically, in this work we compare the efficiency of two possible laser pumping schemes: direct and two-photon excitation. The problem of laser resonator optimization is discussed by providing the analytical formulas for small signal gain in active fiber medium as a function of structure parameters i.e. the cavity geometry, distributed losses of the active medium, output power level and the mirror reflectivity. As the result of the carried-out optimizations we can determine the conditions for obtaining short-wavelength lasing in Nd:ZBLAN fiber laser with minimal threshold and maximal output power level.

Paper Details

Date Published: 26 April 2006
PDF: 9 pages
Proc. SPIE 6159, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments IV, 615928 (26 April 2006); doi: 10.1117/12.674820
Show Author Affiliations
M. Klimczak, Institute of Microelectronics and Optoelectronics (Poland)
P. Witonski, Institute of Microelectronics and Optoelectronics (Poland)
A. Ryter, Institute of Microelectronics and Optoelectronics (Poland)
R. Piramidowicz, Institute of Microelectronics and Optoelectronics (Poland)


Published in SPIE Proceedings Vol. 6159:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments IV
Ryszard S. Romaniuk, Editor(s)

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