Intense 2.1–4.2 µm broadband emission of Co/Er:PbF2 mid-infrared laser crystal

A novel mid-infrared (MIR) laser crystal Co/Er:PbF2 was successfully grown. The use of Er3+ ion co-doping to sensitize a Co2+ ion and enhance the 2.1–4.2 µm broadband MIR emission of the Co2+ ion in a PbF2 crystal was studied for the first time, to the best of our knowledge. The Er3+ ion was demonst...

Full description

Saved in:
Bibliographic Details
Published in:Optics letters 2021-08, Vol.46 (16), p.3913-3916
Main Authors: Zhang, Peixiong, Liao, Jiayu, Niu, Xiaochen, Tan, Huiyu, Li, Shanming, Zhu, Siqi, Yin, Hao, Ma, Fengkai, Yang, Qiguo, Hang, Yin, Li, Zhen, Chen, Zhenqiang
Format: Article
Language:English
Subjects:
Broadband
Cobalt
Commercialization
Crystals
Doping
Emission analysis
Infrared lasers
Laser materials
Lasers
Semiconductor lasers
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel mid-infrared (MIR) laser crystal Co/Er:PbF2 was successfully grown. The use of Er3+ ion co-doping to sensitize a Co2+ ion and enhance the 2.1–4.2 µm broadband MIR emission of the Co2+ ion in a PbF2 crystal was studied for the first time, to the best of our knowledge. The Er3+ ion was demonstrated to be an effective sensitizer of the Co2+ ion, making the Co/Er:PbF2 crystal propitious to be pumped by commercialized laser diodes. Furthermore, with Er3+ ion co-doping, the local symmetry of Co2+ and Er3+ ions was seriously distorted, thereby enhancing the 2.1–4.2 µm MIR emissions. This study provides a path for designing MIR laser materials with optimal performance.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.431432