铒与镱/铥/钬共掺杂的镓锗酸盐双芯光纤中的宽带1.5 - 2.1微米发射。

Broadband 1.5-2.1 µm emission in gallo-germanate dual-core optical fiber co-doped with Er and Yb/Tm/Ho.

作者信息

Markiewicz Jakub, Kochanowicz Marcin, Ragiń Tomasz, Sadowska Karolina, Żmojda Jacek, Miluski Piotr, Dorosz Jan, Kuwik Marta, Pisarski Wojciech A, Pisarska Joanna, Leśniak Magdalena, Dorosz Dominik

出版信息

Opt Express. 2023 Aug 28;31(18):28850-28858. doi: 10.1364/OE.496574.

DOI:10.1364/OE.496574

PMID:37710695

Abstract

The near-infrared emission in fabricated low-phonon energy, gallo-germanate glass, and double-core optical fiber has been investigated. Broadband amplified spontaneous emission (ASE) was obtained in optical fiber with cores doped with: 1 - 0.2ErO and 2 - 0.5YbO/0.4TmO/0.05HoO as a result of the superposition of emission bands from both cores corresponding to the Er:I→I (1 core) and Tm:F → H/Ho:I → I (2 core) transitions. The effect of fiber length and pump wavelength on the near-infrared amplified spontaneous emission (ASE) properties has been analyzed for 1 m and 5 m optical fiber. The widest emission bandwidth (355 nm - 3 dB level) was obtained for a 5 m length optical fiber pumped by a 940 nm laser.

摘要

对制备的低声子能量镓锗酸盐玻璃和双芯光纤中的近红外发射进行了研究。通过叠加来自两个芯的发射带，在掺杂有1 - 0.2ErO和2 - 0.5YbO/0.4TmO/0.05HoO的芯的光纤中获得了宽带放大自发辐射（ASE），这两个发射带分别对应于Er:I→I（1号芯）和Tm:F → H/Ho:I → I（2号芯）跃迁。针对1米和5米长的光纤，分析了光纤长度和泵浦波长对近红外放大自发辐射（ASE）特性的影响。对于由940纳米激光泵浦的5米长光纤，获得了最宽的发射带宽（355纳米 - 3分贝水平）。