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Compact fibre-laser-pumped Ho:YLF oscillator-amplifier system

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dc.contributor.author Bollig, C
dc.contributor.author Strauss, Hencharl J
dc.contributor.author Esser, MJD
dc.contributor.author Koen, W
dc.contributor.author Schellhorn, M
dc.contributor.author Preussler, D
dc.contributor.author Nyangaza, K
dc.contributor.author Jacobs, Cobus
dc.contributor.author Bernhardi, EH
dc.contributor.author Botha, LR
dc.date.accessioned 2009-10-21T11:14:16Z
dc.date.available 2009-10-21T11:14:16Z
dc.date.issued 2009-06
dc.identifier.citation Bollig, C, Strauss, HJ and Esser, MJD. 2009. Compact fibre-laser-pumped Ho:YLF oscillator-amplifier system. Conference on Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), Munich, Germany, 14-19 June 2009, pp 1 en
dc.identifier.isbn 978-1-4244-4080-1
dc.identifier.uri http://hdl.handle.net/10204/3663
dc.description Copyright: 2009 IEEE en
dc.description.abstract Ho:YLF is an attractive laser material for 2 µm high energy sources since it has a much longer upper laser level lifetime (~14 ms) and higher emission cross section than Ho:YAG. In addition, the very weak thermal lens on the polarisation helps to deliver diffraction limited beams even under intense end-pumping. However, Ho:YLF has a somewhat stronger quasi-three-level nature, which implies that in order to reach transparency at the 2065 nm line, 22% of the Ho ions need to be pumped into the upper laser level (at room temperature), but it already reaches transparency at the 1940 nm pump wavelength with only 56% of the Ho ions in the upper laser level. In addition, the pump absorption cross section at 1940 nm is relatively low and strongly polarised. en
dc.language.iso en en
dc.publisher IEEE en
dc.subject Fibre-laser-pumped en
dc.subject Oscillator-amplifier system en
dc.subject Ho:YLF en
dc.subject Lasers and electro-optics en
dc.subject Quantum electronics en
dc.subject Conference on Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science en
dc.subject CLEO/IQEC en
dc.title Compact fibre-laser-pumped Ho:YLF oscillator-amplifier system en
dc.type Conference Presentation en
dc.identifier.apacitation Bollig, C., Strauss, H. J., Esser, M., Koen, W., Schellhorn, M., Preussler, D., ... Botha, L. (2009). Compact fibre-laser-pumped Ho:YLF oscillator-amplifier system. IEEE. http://hdl.handle.net/10204/3663 en_ZA
dc.identifier.chicagocitation Bollig, C, Hencharl J Strauss, MJD Esser, W Koen, M Schellhorn, D Preussler, K Nyangaza, Cobus Jacobs, EH Bernhardi, and LR Botha. "Compact fibre-laser-pumped Ho:YLF oscillator-amplifier system." (2009): http://hdl.handle.net/10204/3663 en_ZA
dc.identifier.vancouvercitation Bollig C, Strauss HJ, Esser M, Koen W, Schellhorn M, Preussler D, et al, Compact fibre-laser-pumped Ho:YLF oscillator-amplifier system; IEEE; 2009. http://hdl.handle.net/10204/3663 . en_ZA
dc.identifier.ris TY - Conference Presentation AU - Bollig, C AU - Strauss, Hencharl J AU - Esser, MJD AU - Koen, W AU - Schellhorn, M AU - Preussler, D AU - Nyangaza, K AU - Jacobs, Cobus AU - Bernhardi, EH AU - Botha, LR AB - Ho:YLF is an attractive laser material for 2 µm high energy sources since it has a much longer upper laser level lifetime (~14 ms) and higher emission cross section than Ho:YAG. In addition, the very weak thermal lens on the polarisation helps to deliver diffraction limited beams even under intense end-pumping. However, Ho:YLF has a somewhat stronger quasi-three-level nature, which implies that in order to reach transparency at the 2065 nm line, 22% of the Ho ions need to be pumped into the upper laser level (at room temperature), but it already reaches transparency at the 1940 nm pump wavelength with only 56% of the Ho ions in the upper laser level. In addition, the pump absorption cross section at 1940 nm is relatively low and strongly polarised. DA - 2009-06 DB - ResearchSpace DP - CSIR KW - Fibre-laser-pumped KW - Oscillator-amplifier system KW - Ho:YLF KW - Lasers and electro-optics KW - Quantum electronics KW - Conference on Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science KW - CLEO/IQEC LK - https://researchspace.csir.co.za PY - 2009 SM - 978-1-4244-4080-1 T1 - Compact fibre-laser-pumped Ho:YLF oscillator-amplifier system TI - Compact fibre-laser-pumped Ho:YLF oscillator-amplifier system UR - http://hdl.handle.net/10204/3663 ER - en_ZA


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