Efficient directly emitting high-power Tb^sup 3+^:LiLuF^sub 4^ laser operating at 587.5 nm in the yellow range

We present, to the best of our knowledge, the most efficient solid-state laser directly emitting in the yellow spectral range. Without any nonlinear conversion steps, a Tb3+:LiLuF4laser operates at a wavelength of 587.5 nm with an output power of 0.5 W and a record-high slope efficiency of 25% with...

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Published in:Optics letters 2018-10, Vol.43 (19), p.4791
Main Authors: Castellano-Hernández, Elena, Metz, Philip W, Demesh, Maxim, Kränkel, Christian
Format: Article
Language:English
Subjects:
Energy conversion efficiency
Lasers
Semiconductor lasers
Solid state lasers
Spectral emittance
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Metz, Philip W
Demesh, Maxim
Kränkel, Christian
description We present, to the best of our knowledge, the most efficient solid-state laser directly emitting in the yellow spectral range. Without any nonlinear conversion steps, a Tb3+:LiLuF4laser operates at a wavelength of 587.5 nm with an output power of 0.5 W and a record-high slope efficiency of 25% with respect to the absorbed pump power at 486.2 nm. Despite the detrimental influence of 4f-excited state absorption, this efficiency is comparable to those obtained by complex nonlinear methods to generate yellow laser emission. Our approach, in combination with the progress in laser diodes at the required pump wavelength, paves the way for the development of cost-efficient, robust, and easily manageable diode-pumped yellow laser sources.
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source OSA_美国光学学会数据库1
subjects Energy conversion efficiency
Lasers
Semiconductor lasers
Solid state lasers
Spectral emittance
title Efficient directly emitting high-power Tb^sup 3+^:LiLuF^sub 4^ laser operating at 587.5 nm in the yellow range
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