Abstract

The thermal activation of the bismuth active center associated with silicon (BAC-Si) in bismuth/erbium-codoped optical fiber (BEDF) has been investigated in terms of temperature, dwell time, and cooling rate. The experimental results show that temperature and dwell time have significant effects on activation of BAC-Si, and the underlying mechanism is further discussed. Especially, through the optimization of these dynamic parameters, the thermal activation of BAC-Si is achieved with a maximum enhancement ${\sim}{2.5}$ times of peak luminescence intensity and 1.6 dB/m increment of the on–off gain at ${\sim}{1405}\;{\rm nm}$. Such discovery clearly indicates that thermal treatment with optimized temperature, dwell time, and cooling rate could be an effective way to activate BAC-Si in BEDF.

© 2020 Optical Society of America

Thermal bleaching of BACs in bismuth/erbium co-doped fiber fabricated through 3D silica lithography

Bowen Zhang, Yushi Chu, Xinghu Fu, Shuen Wei, Jiaying Wang, Yanhua Luo, and Gang-Ding Peng
Opt. Lett. 45(13) 3729-3732 (2020)

BAC activation by thermal quenching in bismuth/erbium codoped fiber

Shuen Wei, Yanhua Luo, Desheng Fan, Gui Xiao, Yushi Chu, Bowen Zhang, Yuan Tian, Muhammad Talal, Matthieu Lancry, and Gang-Ding Peng
Opt. Lett. 44(7) 1872-1875 (2019)

Thermally aggravated photo-bleaching of BAC-Al in bismuth/erbium co-doped optical fiber

Bowen Zhang, Yanhua Luo, Mingjie Ding, Shuen Wei, Desheng Fan, Gui Xiao, Yushi Chu, Yuan Tian, Muhammad Talal, and Gang-Ding Peng
Opt. Lett. 44(19) 4829-4832 (2019)

Pump wavelength dependence and thermal effect of photobleaching of BAC-Al in bismuth/erbium codoped aluminosilicate fibers

Qiancheng Zhao, Yanhua Luo, Yuan Tian, and Gang-Ding Peng
Opt. Lett. 43(19) 4739-4742 (2018)

Effect of thermal treatment parameters on the spectral characteristics of BAC-Al in bismuth/erbium-codoped aluminosilicate fibers

Qiancheng Zhao, Yanhua Luo, Qun Hao, and Gang-Ding Peng
Opt. Lett. 44(18) 4594-4597 (2019)