26 February 2018 Dynamic behavior of pump light radiation induced photo-bleaching effect on BAC-Si in bismuth/erbium co-doped optical fibers
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Proceedings Volume 10512, Fiber Lasers XV: Technology and Systems; 1051226 (2018) https://doi.org/10.1117/12.2287433
Event: SPIE LASE, 2018, San Francisco, California, United States
Abstract
Ultra-wide emission in bismuth doped optical fiber has been extremely studied for the development of the laser and amplifier working at near infrared band. In our homemade bismuth/erbium co-doped optical fiber, bismuth active center associated with silica (BAC-Si) has been found that when pumping at its resonant wavelength at 830 nm the NIR emission could be partially bleached. In addition, a self-recovery process has been observed at room temperature. However, the exact mechanism is still unclear. In this work, we have investigated the photo-bleaching effect on the BAC-Si via the pump power, pump wavelength and temperature dependence. Based on analyzing the result using stretched exponential function, it shows that the bleaching effect on BAC-Si has a strong link with the excitation process of Bi ion in BAC-Si. A potential energy curve model is used to illustrate the BAC-Si photo-bleaching process.
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Mingjie Ding, Yanhua Luo, Jianxiang Wen, Gang-Ding Peng, "Dynamic behavior of pump light radiation induced photo-bleaching effect on BAC-Si in bismuth/erbium co-doped optical fibers", Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 1051226 (26 February 2018); doi: 10.1117/12.2287433; https://doi.org/10.1117/12.2287433
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