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Title: Manipulating the wavelength-drift of a Tm laser for resonance enhancement in an intracavity pumped Ho laser
Authors: Huang, H.
Huang, J.
Huagang, L.I.U. 
Jinhui, L.I.
Zixiong, L.I.N.
Yan, G.E.
Shutao, D.A.I.
Deng, J.
Lin, W.
Issue Date: 2018
Publisher: OSA - The Optical Society
Citation: Huang, H., Huang, J., Huagang, L.I.U., Jinhui, L.I., Zixiong, L.I.N., Yan, G.E., Shutao, D.A.I., Deng, J., Lin, W. (2018). Manipulating the wavelength-drift of a Tm laser for resonance enhancement in an intracavity pumped Ho laser. Optics Express 26 (5) : 5758-5768. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: We demonstrate an enhancement mechanism and thermal model for intra-cavity pumped lasers, where resonance enhancement in intra-cavity pumped Ho laser was achieved by manipulating the wavelength-drift nature of the Tm laser for the first time. Optical conversion efficiency of 37.5% from an absorbed 785 nm diode laser to a Ho laser was obtained with a maximum output power of 7.51 W at 2122 nm, which is comparable to the conversion efficiency in 1.9 ?m LD pumped Ho lasers. Meanwhile, more severe thermal effects in the Ho-doped gain medium than the Tm-doped one at high power operation were verified based on the built thermal model. This work benefits the design or evaluation of intra-cavity pumped lasers, and the resonance enhancement originated from the difference in reabsorption loss between stark levels at the lasing manifolds of quasi-three-level rare-earth ions has great interest to improve the existing intra-cavity pumped lasers or explore novel lasers. © 2018 Optical Society of America.
Source Title: Optics Express
ISSN: 1094-4087
DOI: 10.1364/OE.26.005758
Rights: Attribution 4.0 International
Appears in Collections:Staff Publications

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