Effect of power scale of 974 and 633 nm lasers on the induced loss at 633 nm of Yb~(3+)/Al~(3+) co-doped silica fiber

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英文篇名：Effect of power scale of 974 and 633 nm lasers on the induced loss at 633 nm of Yb~(3+)/Al~(3+) co-doped silica fiber 作者：谢封侯 ; 邵冲云 ; 楼风光 ; 王孟 ; 于春雷 ; 冯素雅 ; 胡丽丽 英文作者：Fenghou Xie;Chongyun Shao;Fengguang Lou;Meng Wang;Chunlei Yu;Suya Feng;Lili Hu;Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences;University of Chinese Academy of Sciences; 中文刊名：GXKB 英文刊名：中国光学快报(英文版) 机构：Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences;University of Chinese Academy of Sciences; 出版日期：2018-01-10 出版单位：Chinese Optics Letters 年：2018 期：v.16 基金：supported by the Young Scientists Fund of the National Natural Science Foundation of China(No.61405215);; the Youth Innovation Promotion Association;; the Special Program for Advanced Electronic Materials of the Ministry of Science and Technology,China(No.2016YFB0402201) 语种：英文; 页：GXKB201801004 页数：5 CN：01 ISSN：31-1890/O4 分类号：20-24

摘要

Induced loss at 633 nm is tested in Yb~(3+)∕Al~(3+)co-doped silica fiber by a core pumped with a 974 nm laser and probed with a 633 nm laser. The fiber is prepared by the modified chemical vapor deposition method combined with solution doping. Different power scales of pump light and probe light are used in the tests. It is found that there is a dynamic equilibrium between photobleaching induced by 633 nm probe light and photodarkening(PD)induced by 974 nm pump light. For the first time to our knowledge, the effect of 633 nm probe laser power on an induced loss test of Yb~(3+)∕Al~(3+)co-doped silica fiber is studied quantitatively. It suggests that as long as the633 nm probe light power is less than 0.2 m W, the induced loss is mainly contributed by the PD effect of pumping light, and the deviation of induced loss is less than 5%.
        Induced loss at 633 nm is tested in Yb~(3+)∕Al~(3+)co-doped silica fiber by a core pumped with a 974 nm laser and probed with a 633 nm laser. The fiber is prepared by the modified chemical vapor deposition method combined with solution doping. Different power scales of pump light and probe light are used in the tests. It is found that there is a dynamic equilibrium between photobleaching induced by 633 nm probe light and photodarkening(PD)induced by 974 nm pump light. For the first time to our knowledge, the effect of 633 nm probe laser power on an induced loss test of Yb~(3+)∕Al~(3+)co-doped silica fiber is studied quantitatively. It suggests that as long as the633 nm probe light power is less than 0.2 m W, the induced loss is mainly contributed by the PD effect of pumping light, and the deviation of induced loss is less than 5%.

引文

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