erbium doped
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2022 ◽  
Vol 148 ◽  
pp. 107772
Author(s):  
Di Wu ◽  
Shuang Tian ◽  
Xiaojuan Zhang ◽  
Benli Yu ◽  
Jiajun Ma ◽  
...  

2022 ◽  
Vol 146 ◽  
pp. 107569
Author(s):  
Aseel A. Shakaty ◽  
Jassim K. Hmood ◽  
Bushra R. Mahdi ◽  
R.I. Mahdi ◽  
Alabbas A. Al-Azzawi

2022 ◽  
Vol 14 (1) ◽  
pp. 1-6
Author(s):  
Qiang Qiu ◽  
Zhimu Gu ◽  
Le He ◽  
Yang Chen ◽  
Yang Lou ◽  
...  

2022 ◽  
Vol 504 ◽  
pp. 127468
Author(s):  
Dongming Zhang ◽  
Yichang Meng ◽  
Chen Zhang ◽  
Jingbo Zhou
Keyword(s):  

2022 ◽  
Vol 893 ◽  
pp. 162215
Author(s):  
F. Zaman ◽  
G. Rooh ◽  
N. Chanthima ◽  
S.U. Khan ◽  
H.J. Kim ◽  
...  

2022 ◽  
Vol 12 (2) ◽  
pp. 767
Author(s):  
Yaping Liu ◽  
Zhiqun Yang ◽  
Xutao Wang ◽  
Yongmin Jung ◽  
Lin Zhang

Few-mode erbium-doped fiber amplifiers (FM-EDFAs) are one of the most important optical subsystems for successful space division multiplexed transmission systems. In this paper, we propose a new FM-EDFA designed to achieve significantly reduced differential modal gain (DMG) via strong mode coupling. Using a new numerical model based on a fiber transfer matrix, the DMGs of FM-EDFAs are systematically investigated and two different types of six-mode fiber amplifiers are analyzed, as exemplar demonstrations. In a uniformly doped step-index fiber, the DMG can be reduced from 9.3 to 1.1 dB (i.e., 8.2 dB reduction) and further reduced to 0.5 dB in a dual-layer doping structure.


Author(s):  
M. V. Rudenko ◽  
N. V. Gaponenko ◽  
E. B. Chubenko ◽  
E. I. Lashkovskaya ◽  
K. V. Shustsikava ◽  
...  

Erbium-doped barium titanate (BaTiO3:Er) xerogel film with a thickness of about 500 nm was formed on the porous strontium titanate (SrTiO[Formula: see text] xerogel film on Si substrate after annealing at 800[Formula: see text]C or 900[Formula: see text]C. The elaborated structures show room temperature upconversion luminescence under 980 nm excitation with the photoluminescence (PL) bands at 523, 546, 658, 800 and 830 nm corresponding to 2H[Formula: see text]4I[Formula: see text], 4S[Formula: see text]I[Formula: see text], 4F[Formula: see text]I[Formula: see text] and 4I[Formula: see text]4I[Formula: see text] transitions of trivalent erbium. Raman and X-ray diffraction (XRD) analysis of BaTiO3:Er\porous SrTiO3\Si structure showed the presence of perovskite phases. Its excellent up-conversion optical performance will greatly broaden its applications in perovskite solar cells and high-end anti-counterfeiting technologies.


2022 ◽  
Author(s):  
Yi-Chi Chen ◽  
Chien-Hung Yeh ◽  
Wen-Piao Lin ◽  
Li-Hung Liu ◽  
Han-Shin Ko ◽  
...  

Abstract In this paper, an erbium-doped fiber (EDF) laser with symmetric Sagnac dual-ring scheme is experimentally studied to achieve tunable and stable continuous-wave (CW) single-longitudinal-mode (SLM) presentation. In the measurement, the obtained wavelength-tuning bandwidth can be reached from 1518.0 to 1578.0 nm based on a C-band EDF gain-medium. Moreover, the corresponding output power, optical signal to noise ratio (OSNR) and wavelength linewidth of the designed EDF laser are studied and performed simultaneously.


Author(s):  
Dongfang Lan ◽  
Tonglei Cheng ◽  
Yunhan Qu ◽  
Xuenan Zhang ◽  
Xin Yan ◽  
...  

2022 ◽  
Vol 20 (1) ◽  
pp. 011402
Author(s):  
Qi Zhao ◽  
Li Pei ◽  
Zuliang Ruan ◽  
Jingjing Zheng ◽  
Jianshuai Wang ◽  
...  

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