Guiding and lasing comparison of Nd:YAG waveguide lasers fabricated by femtosecond laser inscription at 515 and 1030 nm

IF 1.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Laser Applications Pub Date : 2023-08-01 DOI:10.2351/7.0001155

W. Gebremichael, C. Dorrer, J. Qiao

引用次数: 0

Abstract

We report the comparative investigation of fabricating type-II waveguide lasers in Nd:Y3Al5O12 (Nd:YAG) using femtosecond laser pulses at 515 and 1030 nm. We focus on the comparison in track morphologies, modification thresholds, and the overall efficiency of the ultrafast laser inscription (ULI) process in creating these waveguides. For both wavelengths, we demonstrated low propagation losses of 0.2 dB/cm. We achieved the lowest reported lasing threshold of 9 mW in a Nd:YAG waveguide laser. Superior performance was achieved with the 1030-nm ULI source, yielding a slope efficiency over 40% and achieving a lasing threshold at half the value observed for the 515-nm source.

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515和1030飞秒激光刻蚀Nd:YAG波导激光器的引导和激光比较纳米

我们报道了用515和1030飞秒激光脉冲在Nd:Y3Al5O12（Nd:YAG）中制备II型波导激光器的比较研究 nm。我们重点比较了在创建这些波导过程中，超快激光铭文（ULI）工艺的轨迹形态、修饰阈值和整体效率。对于这两种波长，我们证明了0.2的低传播损耗 dB/cm。我们实现了9的最低激光阈值 mW。1030nm ULI源实现了优异的性能，产生了超过40%的斜率效率，并实现了515nm源观测值的一半的激光阈值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Laser Applications 物理-光学

CiteScore

3.60

自引率

9.50%

发文量

125

审稿时长

>12 weeks

期刊介绍： The Journal of Laser Applications (JLA) is the scientific platform of the Laser Institute of America (LIA) and is published in cooperation with AIP Publishing. The high-quality articles cover a broad range from fundamental and applied research and development to industrial applications. Therefore, JLA is a reflection of the state-of-R&D in photonic production, sensing and measurement as well as Laser safety. The following international and well known first-class scientists serve as allocated Editors in 9 new categories: High Precision Materials Processing with Ultrafast Lasers Laser Additive Manufacturing High Power Materials Processing with High Brightness Lasers Emerging Applications of Laser Technologies in High-performance/Multi-function Materials and Structures Surface Modification Lasers in Nanomanufacturing / Nanophotonics & Thin Film Technology Spectroscopy / Imaging / Diagnostics / Measurements Laser Systems and Markets Medical Applications & Safety Thermal Transportation Nanomaterials and Nanoprocessing Laser applications in Microelectronics.