Lasing in a femtosecond-laser-written single-scan waveguide fabricated in Tm-doped BGG glass

被引：3

作者：

Dupont, Albert ^{[1
]}

Leonov, Stanislav ^{[1
]}

Guerineau, Theo ^{[1
]}

Messaddeq, Younes ^{[1
]}

Lapointe, Jerome ^{[1
]}

Vallee, Real ^{[1
]}

机构：

[1] Univ Laval, Ctr Opt Photon & Laser COPL, 2375 Terrasse, Quebec City, PQ G1V 0A6, Canada

来源：

OPTICS LETTERS | 2025年 / 50卷 / 02期

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

MU-M; DIRECT INSCRIPTION; REFRACTIVE-INDEX; GERMANATE GLASS;

D O I：

10.1364/OL.547643

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report lasing action in a femtosecond-laser-inscribed waveguide in thulium-doped barium-gallium-germanium oxide (BGG) glass. A laser cavity was assembled with this waveguide that provided a single-mode output of 62 mW when pumped at 1.6 mu m. The waveguide was fabricated using a single laser scan to create a near-circular cross section with a positive refractive index change of approximately 3.5 x 10-3. Analysis of the laser-modified region was performed using electron-probe microanalysis and Raman spectroscopy. These findings establish BGG glass as a promising platform for the fabrication of mid-infrared integrated photonic devices. (c) 2025 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.

引用

页码：666 / 669

页数：4

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