Influence of interionic energy transfer mechanisms in Tm,Ho:YAG on the maximum extractable energy in regenerative amplifiers

Springer R, Pflaum C (2018)

Publication Type: Book chapter / Article in edited volumes

Publication year: 2018

Edited Volumes: SPIE Photonics Europe Proceedings

Event location: Strasbourg, France

URI: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10683/106832K/Influence-of-interionic-energy-transfer-mechanisms-in-TmHo-YAG-on/10.1117/12.2306235.full?SSO=1

DOI: 10.1117/12.2306235

Abstract

The numerical simulation of a regenerative amplifier based on codoped Tm,Ho:YAG is presented. Within this

work, a maximum pulse energy of 3.1 mJ is observed for 0.9 kW continous wave end-pumping at 785 nm. The

simulation results demonstrate that interionic mechanisms such as upconversion and energy transfer significantly

influence the population of states and consequently, the amplification. In detail, the most dominant mechanisms

are identified by introducing the rate term kxNiNm as a quantity to compare the strength of all occuring

interionic mechanisms. It can then be shown that the energy transfer mechanism E6512 between Holmium and

Thulium ions is the greatest source of population loss for the upper lasing state 5 I7 in Holmium. In summary,

the presented model represents an efficient tool to characterize the influence of interionic mechanisms on the

extractable energy in solid-state media under pulsed operation.


Authors with CRIS profile

Ramon Springer Professur für Informatik (Numerische Simulation mit Höchstleistungsrechnern) Christoph Pflaum Professur für Informatik (Numerische Simulation mit Höchstleistungsrechnern)

Additional Organisation(s)

Lehrstuhl für Informatik 10 (Systemsimulation) Erlangen Graduate School in Advanced Optical Technologies

Related research project(s)

Precise simulation of solid-state amplifiers Jan. 1, 2016 - Dec. 31, 2019

How to cite

APA:

Springer, R., & Pflaum, C. (2018). Influence of interionic energy transfer mechanisms in Tm,Ho:YAG on the maximum extractable energy in regenerative amplifiers. In SPIE Photonics Europe Proceedings..

MLA:

Springer, Ramon, and Christoph Pflaum. "Influence of interionic energy transfer mechanisms in Tm,Ho:YAG on the maximum extractable energy in regenerative amplifiers." SPIE Photonics Europe Proceedings. 2018.

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