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Article Dans Une Revue Communications in Physics Année : 2022

Simple Design of Double-Layer Antireflection Coating for Er-Doped Glass Laser Application

Résumé

In an Erbium-doped glass laser resonator, parasitic light oscillations (yielding a lowering of the output laser beam power) may be avoided by deposition of well-adapted antireflection coatings on the edges of the active glass medium. However, towards laser application, efficient double-layers are scarce in literature. Here, we propose a simple design of double-layer (total thickness < 490nm) composed of thin films of MgF2 and Al2O3, materials that are easy to deposit by electron beam evaporation. Such coating design allows a calculated reflectance to be lower than 0.01% in the considered 1530-1570nm Near-Infrared range.
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Dates et versions

hal-04271021 , version 1 (07-11-2023)

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Citer

van Huy Mai, Chi Dung Duong, Hoang Hai Le, Linh Khuong Tran, Alexandre Jaffré, et al.. Simple Design of Double-Layer Antireflection Coating for Er-Doped Glass Laser Application. Communications in Physics, 2022, 32 (4), ⟨10.15625/0868-3166/17137⟩. ⟨hal-04271021⟩
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