Ultra-broadband near-infrared emission from Bi-doped lithium alumino silicate glasses for optical amplification

Author(s):  
Y. Ohishi ◽  
T. Suzuki
2011 ◽  
Vol 98 (7) ◽  
pp. 071911 ◽  
Author(s):  
Morten M. Smedskjaer ◽  
Jianrong Qiu ◽  
John Wang ◽  
Yuanzheng Yue

2009 ◽  
Vol 34 (16) ◽  
pp. 2486 ◽  
Author(s):  
Jian Ruan ◽  
Guoping Dong ◽  
Xiaofeng Liu ◽  
Qiang Zhang ◽  
Danping Chen ◽  
...  

2009 ◽  
Vol 24 (2) ◽  
pp. 516-519 ◽  
Author(s):  
Jian Ruan ◽  
Botao Wu ◽  
Danping Chen ◽  
Yanbo Qiao ◽  
Jianrong Qiu

In this article, we report on enhanced broadband near-infrared emission in Yb–Bi codoped phosphate glasses. The emission intensity of Yb–Bi codoped glass was ˜32 times larger than that of Bi-doped glass when excited with 980-nm laser diode. The highest 1/e fluorescent lifetime of Yb–Bi codoped glass reached 1650 μs. The dependence of emission intensity and fluorescent lifetime on Yb2O3 concentration was investigated. The enhancement of the near-infrared emission is due to energy transfer from Yb3+ (2F5/2–2F7/2) transition to Bi ions, and the highest energy transfer efficiency reached 50%. Yb–Bi codoped phosphate glass should be a promising candidate for broadband optical amplification.


2012 ◽  
Vol 358 (2) ◽  
pp. 261-264 ◽  
Author(s):  
Nengli Dai ◽  
Huaixun Luan ◽  
Bing Xu ◽  
Lvyun Yang ◽  
Yubang Sheng ◽  
...  

2004 ◽  
Vol 13 (03n04) ◽  
pp. 497-501
Author(s):  
YUN HUI CHA ◽  
KYONG-SOO HONG ◽  
SOON CHANG LEE ◽  
DUCK-LAE JOO ◽  
JIN KOOK LEE ◽  
...  

We have synthesized erbium-included mesoporous materials to enhance optical amplification gain in Er 3+-doped silica materials. Various mesoporous materials such as MCM-41, MCM-48 or SBA-15 were prepared and then erbium ions were filled into the empty pores in the mesoporous materials via sol-gel process through the external modification of the mesoporous materials. All erbium-included mesoporous materials exhibit the near infrared emission band around 1530 nm, corresponding to the characteristic 4 I 13/2→4 I 15/2 transition of erbium ions. The characteristic emission intensity of erbium ions increases with the concentration of Er 3+ ions in the erbium-included mesoporous materials.


2009 ◽  
Vol 42 (15) ◽  
pp. 155102 ◽  
Author(s):  
Jian Ruan ◽  
Yingzhi Chi ◽  
Xiaofeng Liu ◽  
Guoping Dong ◽  
Geng Lin ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document