Spectroscopic properties of Ho3+, Tm3+, and Ho3+/Tm3+doped tellurite glasses for fiber laser applications

2014 ◽  
Author(s):  
M. Seshadri ◽  
J. A. P. Ferencz Junior ◽  
Y. C. Ratnakaram ◽  
L. C. Barbosa
Keyword(s):  
Fiber Laser ◽  
Spectroscopic Properties ◽  
Tellurite Glasses ◽  
Laser Applications

scholarly journals Effect of BaF2 Variation on Spectroscopic Properties of Tm3+ Doped Gallium Tellurite Glasses for Efficient 2.0 μm Laser

2021 ◽  
Vol 8 ◽  
Author(s):  
Jian Yuan ◽  
Weichao Wang ◽  
Yichen Ye ◽  
Tingting Deng ◽  
Deqian Ou ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Tellurite Glass ◽  
Emission Cross Section ◽  
Spectroscopic Properties ◽  
Gain Coefficient ◽  
Relative Energy ◽  
Energy Transfer Mechanism ◽  
Tellurite Glasses ◽  
Laser Development ◽  
The One

The effects of substitution of BaF2 for BaO on physical properties and 1. 8 μm emission have been systematically investigated to improve spectroscopic properties in Tm3+ doped gallium tellurite glasses for efficient 2.0 μm fiber laser. It is found that refractive index and density gradually decrease with increasing BaF2 content from 0 to 9 mol.%, due to the generation of more non-bridging oxygens. Furthermore, OH− absorption coefficient (αOH) reduces monotonically from 3.4 to 2.2 cm−1 and thus emission intensity near 1.8 μm in gallium tellurite glass with 9 mol.% BaF2 is 1.6 times as large as that without BaF2 while the lifetime becomes 1.7 times as long as the one without BaF2. Relative energy transfer mechanism is proposed. The maximum emission cross section and gain coefficient at around 1.8 μm of gallium tellurite glass containing 9 mol.% BaF2 are 8.8 × 10−21 cm2 and 3.3 cm−1, respectively. These results indicate that Tm3+ doped gallium tellurite glasses containing BaF2 appear to be an excellent host material for efficient 2.0 μm fiber laser development.

scholarly journals Metallic 2H-Tantalum Selenide Nanomaterials as Saturable Absorber for Dual-Wavelength Q-Switched Fiber Laser

Sensors ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 239
Author(s):  
Lingling Yang ◽  
Ruwei Zhao ◽  
Duanduan Wu ◽  
Tianxiang Xu ◽  
Xiaobiao Liu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Saturable Absorber ◽  
Peak Power ◽  
Dual Wavelength ◽  
Transition Metal Dichalcogenide ◽  
Promising Candidate ◽  
Laser Applications ◽  
Maximum Pulse Energy ◽  
Structure Simulation ◽  
Tantalum Selenide

A novel 2H-phase transition metal dichalcogenide (TMD)–tantalum selenide (TaSe2) with metallic bandgap structure is a potential photoelectric material. A band structure simulation of TaSe2 via ab initio method indicated its metallic property. An effective multilayered TaSe2 saturable absorber (SA) was fabricated using liquid-phase exfoliation and optically driven deposition. The prepared 2H–TaSe2 SA was successfully used for a dual-wavelength Q-switched fiber laser with the minimum pulse width of 2.95 μs and the maximum peak power of 64 W. The repetition rate of the maximum pulse energy of 89.9 kHz was at the level of 188.9 nJ. The metallic 2H–TaSe2 with satisfactory saturable absorbing capability is a promising candidate for pulsed laser applications.

Highly reliable, high-brightness 915nm laser diodes for fiber laser applications

2008 ◽  
Author(s):  
Zuntu Xu ◽  
Wei Gao ◽  
Lisen Cheng ◽  
Kejian Luo ◽  
Kun Shen ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Laser Diodes ◽  
Laser Applications ◽  
High Brightness

Investigation of optical and spectroscopic properties of neodymium doped oxyfluoro-titania-phosphate glasses for laser applications

2019 ◽  
Vol 162 ◽  
pp. 246-250 ◽  
Author(s):  
G. Neelima ◽  
K. Venkata Krishnaiah ◽  
N. Ravi ◽  
K. Suresh ◽  
K. Tyagarajan ◽  
...  
Keyword(s):  
Spectroscopic Properties ◽  
Phosphate Glasses ◽  
Laser Applications

Judd Ofelt Theory Analysis and Spectroscopic Properties of Nd3+-doped TeO2-Al2O3-Cs2O Tellurite Glasses

2014 ◽  
Vol 43 (6) ◽  
pp. 616002
Author(s):  
秦忠雪 QIN Zhongxue ◽  
袁孝 YUAN Xiao ◽  
熊宝星 XIONG Baoxing ◽  
邹快盛 ZOU Kuaisheng ◽  
张翔 ZHANG Xiang ◽  
...  
Keyword(s):  
Spectroscopic Properties ◽  
Tellurite Glasses ◽  
Theory Analysis ◽  
Ofelt Theory

Laser spectroscopic properties of Nd3+ -doped tellurite glasses

1976 ◽  
Vol 17 (3) ◽  
pp. 315-319 ◽  
Author(s):  
S. Singh ◽  
L.G. Van Uitert ◽  
W.H. Grodkiewicz
Keyword(s):  
Spectroscopic Properties ◽  
Tellurite Glasses ◽  
Laser Spectroscopic

Spectroscopic properties and Judd–Ofelt analysis of Sm3+doped lead–germanate–tellurite glasses

2008 ◽  
Vol 41 (17) ◽  
pp. 175101 ◽  
Author(s):  
M Jayasimhadri ◽  
Eun-Jin Cho ◽  
Ki-Wan Jang ◽  
Ho Sueb Lee ◽  
Sun Il Kim
Keyword(s):  
Spectroscopic Properties ◽  
Tellurite Glasses ◽  
Lead Germanate
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