Fundamentals of Fiber Lasers

Meyer, Johan; Sompo, Justice; Solms, Suné von

doi:10.1201/9781003256380-1

Cited by 1 publication

(2 citation statements)

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“…This numerical method is particularly convenient for evaluating transient problems. Additionally, the FDTD is quite versatile, and given the present computer technology, it has been used with great success in solving many practical problems [26]. Particularly this method is also applicable in the case of a pulsed Dy−doped fiber laser.…”

Section: Numerical Analysismentioning

confidence: 99%

“…Therefore, it is necessary to propose more numerical and analytical methods for further improvements in the performance of Dy−doped ZBLAN fiber lasers. In this paper, we have used a Forward Time Centered Space (FTCS) method [26] and analytical methods for deep analysis and further understanding of Dy−doped ZBLAN fiber laser properties. This has led us to obtain a suitable and comprehensive model which figures out the impact of different physical parameters such as pump and signal overlap integrals with the doped region, as well as cavity parameters (active fiber length and mirror's reflectivity), on laser output performance.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and Optimization of Dysprosium-Doped Yellow Fiber Lasers for Ophthalmology Applications

Khozeymeh,

Poli,

Chowdhury

et al. 2024

IEEE Photonics J.

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In this paper, a Forward Time Centered Space (FTCS) method and an analytical method have been developed to fully investigate the 4 F 9/2 to 6 H 13/2 lasing transition of a dysprosium Dy−doped ZBLAN fiber which provides the potential of highly efficient yellow laser direct generation. This light source is of significant interest for treating diabetic retinopathy, which can cause blindness. The developed method's validity is confirmed through the comparison with experimental investigations of Dy−doped ZBLAN fiber lasers in other valid research. A full analysis of Dy−doped fiber laser including the population of the energy levels, power evolution of the laser and pump signals, amplified spontaneous emission (ASE), excited state absorption (ESA), radiative and non-radiative time transition rates are presented. The developed numerical method gives a better understanding of the impact of ASE and ESA on laser performance. The influence of overlap integrals, output mirror reflectivity, and active fiber length on laser performance is investigated. The optimization criteria based on the different robust configurations of laser cavities are found which predict the slope efficiencies higher than half of the Stokes limit.

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Section: Numerical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%