Experimental Study on Radiation Performance of Fiber Lasers

Junjie, 池俊杰 Chi; Shiqi, 姜诗琦 Jiang; Lin, 张琳 Zhang; Miao, 于淼 Yu; Junlong, 王军龙 Wang

doi:10.3788/lop55.061406

Cited by 1 publication

(1 citation statement)

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“…However, when the device is exposed to harsh radiation in the space environment, its output power declines sharply [13]. A study has confirmed that during the irradiation process, the increasing loss of the active fiber in the device is the primary reason for the reduction in output power [14]. Co-doped elements such as Al and P are generally incorporated in active fibers to inhibit clusters or improve laser performance [15].…”

Section: Introductionmentioning

confidence: 99%

Improved Radiation Resistance of Er-Yb Co-Doped Silica Fiber by Pretreating Fibers

et al. 2023

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In this study, a pretreatment method for improving the radiation resistance of Er-Yb co-doped silica fiber (EYDF) is proposed. EYDF is the object in this method and is processed by two steps, including deuterium loading and pre-irradiation. The effects of pretreatment conditions on the laser performance and radiation resistance of EYDF were systematically studied. An online irradiation experiment setup was utilized to evaluate the radiation resistance of EYDF. The results demonstrate that the pretreatment can significantly improve the radiation resistance of EYDF, with minimal impact on the laser output power and slope efficiency. Specifically, the radiation-induced gain variations in the pristine fiber and the pretreated fiber with a cumulative dose of 240 krad were 3.13 dB and 1.81 dB, respectively. Additionally, the high-vacuum experiments show that the proposed pretreatment method can maintain a long-term stable radiation resistance improvement in the fiber. This study provides a method to improve the radiation resistance of EYDF for space applications.

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Section: Introductionmentioning

confidence: 99%