In:
Optics Letters, Optica Publishing Group, Vol. 48, No. 15 ( 2023-08-01), p. 3901-
Abstract:
We report on thermal, spectroscopic, and laser properties of transparent 5 at.% Tm 3+ -doped yttria and “mixed” yttria-scandia ceramics fabricated by vacuum sintering at 1750°C using nanoparticles produced by laser ablation. The solid-solution (Tm 0.05 Y 0.698 Sc 0.252 ) 2 O 3 ceramic features a broadband emission extending up to 2.3 µm (gain bandwidth, 167 nm) and high thermal conductivity of 4.48 W m −1 K −1 . A Tm:Y 2 O 3 ceramic laser generated 812 mW at 2.05 µm with a slope efficiency η of 70.2%. For the Tm:(Y,Sc) 2 O 3 ceramic, the output power was 523 mW at 2.09 µm with η = 44.7%. These results represent record-high slope efficiencies for any parent or “mixed” Tm 3+ -doped sesquioxide ceramics.
Type of Medium:
Online Resource
ISSN:
0146-9592
,
1539-4794
Language:
English
Publisher:
Optica Publishing Group
Publication Date:
2023
detail.hit.zdb_id:
243290-0
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