Tm3+-doped fluorotellurite glass microsphere resonator laser at 2.3 µm.
Opt Lett
; 45(13): 3553-3556, 2020 Jul 01.
Article
em En
| MEDLINE
| ID: mdl-32630896
ABSTRACT
In this Letter, we report lasing at 2.3 µm in Tm3+-single-doped and Tm3+/Ho3+-codoped fluorotellurite glass microsphere resonators. By employing a 793 nm diode laser as a pump and exploiting whispering gallery mode microresonators (WGMRs), dual-wavelength lasing at 1.9 and 2.3 µm and triple-wavelength lasing at 1.9, 2.07, and 2.3 µm are achieved in Tm3+-doped and Tm3+/Ho3+-codoped microspheres, respectively. The introduction of Ho3+ ions significantly reduces the lasing threshold of Tm3+ at 2.3 µm because of energy transfer.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2020
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Article