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

Zhang, Bowen; Luo, Yanhua; Ding, Mingjie; Wei, Shuen; Fan, Desheng; Xiao, Gui; Chu, Yushi; Tian, Yuan; Talal, Muhammad; Peng, Gang-Ding

doi:10.1364/ol.44.004829

Cited by 9 publications

(8 citation statements)

References 16 publications

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“…It was also found that the 1550-nm laser had no photobleaching effect upon BAC-Ge under 80°C but was able to bleach BAC-Ge when the temperature of BDF was elevated to hundreds of degrees [54]. Such combined effect of thermal treatment and laser irradiation on BAC-Al has also been observed in BEDF [52].…”

Section: Temperature Dependencementioning

confidence: 89%

“…The photobleaching of BAC-Al also largely depends on the irradiation intensity [49,52]. The intensity dependence of photobleaching of BAC-Al under 532-nm irradiation has been demonstrated in [49].…”

Section: Irradiation Intensity Dependencementioning

confidence: 92%

“…Higher irradiation intensity provides more photons, leading to stronger photobleaching effect. It is worth noting that for both BAC-Si and BAC-Al, the bleaching ratio tends to saturate as the irradiation intensity increases [47,52]. More interestingly, the photobleaching effect could happen under irradiation of some wavelengths even the irradiation intensity is quite small.…”

Section: Inductive Analysismentioning

confidence: 94%

“…It has been reported that the bleaching ratio of BAC-Al under 0.12 MW/cm 2 532-nm irradiation is reduced from 10 to 5% as the temperature falls down from RT to 77 K [49]. In addition, the temperature aggravated photobleaching of BAC-Al has been observed in BEDF [52]. Under 0.34 MW/cm 2 980-nm irradiation, the BAC-Al luminescence at 1191 nm has little change at 293 K but decreases obviously at higher temperatures (423-623 K).…”

Section: Temperature Dependencementioning

confidence: 96%

“…As for the bismuth-doped materials, the BAC-related NIR luminescence was reduced under laser irradiation in bismuth-doped silica-based glasses, TlCdCl 3 crystal and Sr 2 B 5 O 9 Cl:Bi crystal [42][43][44]. In the case of BDFs/BEDFs, a number of studies on the photobleaching of various BACs have been reported [19,21,[45][46][47][48][49][50][51][52][53][54]. Herein, the photobleaching effect on BAC-Si, BAC-Ge, BAC-Al, and BAC-P in BDFs and BEDFs is demonstrated in relation to irradiation intensity, irradiation wavelength, and temperature, respectively.…”

Section: Phenomenon Of Photobleachingmentioning

confidence: 99%

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BAC Photobleaching in Bismuth-Doped and Bismuth/Erbium Co-Doped Optical Fibers

Zhang¹,

Ding²,

Wei³

et al. 2020

Bismuth - Fundamentals and Optoelectronic Applications

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Bismuth-doped optical fiber (BDF) and bismuth/erbium co-doped optical fiber (BEDF) have attracted much attention due to their ultra-broadband luminescence in the near-infrared (NIR) region. The photobleaching effect on bismuth active centers (BACs) related to the NIR luminescence has been systematically investigated and summarized, in terms of irradiation intensity, irradiation wavelength, and temperature. All these findings not only give the deep insights into the fundamental structure of BACs but also provide an effective way to control the BACs. They play an important role for the development of BDF-and BEDF-based devices with high performance and stability under laser exposure in future.

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Section: Temperature Dependencementioning

confidence: 89%