中国物理B ›› 2017, Vol. 26 ›› Issue (11): 114211-114211.doi: 10.1088/1674-1056/26/11/114211

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Gamma-radiation effects in pure-silica-core photonic crystal fiber

Wei Cai(蔡伟), Ningfang Song(宋凝芳), Jing Jin(金靖), Jingming Song(宋镜明), Wei Li(李伟), Wenyong Luo(罗文勇), Xiaobin Xu(徐小斌)   

  1. 1. School of Instrument Science and Opto-electronic Engineering, Beihang University, Beijing 100191, China;
    2. FiberHome Telecommunication Technologies CO., Ltd., Wuhan 430000, China
  • 收稿日期:2017-04-29 修回日期:2017-06-11 出版日期:2017-11-05 发布日期:2017-11-05
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61575012 and 61575013) and the National Key Scientific Instrument and Equipment Development Project, China (Grant No. 2013YQ040877).

Gamma-radiation effects in pure-silica-core photonic crystal fiber

Wei Cai(蔡伟)1, Ningfang Song(宋凝芳)1, Jing Jin(金靖)1, Jingming Song(宋镜明)1, Wei Li(李伟)2, Wenyong Luo(罗文勇)2, Xiaobin Xu(徐小斌)1   

  1. 1. School of Instrument Science and Opto-electronic Engineering, Beihang University, Beijing 100191, China;
    2. FiberHome Telecommunication Technologies CO., Ltd., Wuhan 430000, China
  • Received:2017-04-29 Revised:2017-06-11 Online:2017-11-05 Published:2017-11-05
  • Contact: Wei Cai E-mail:sdfz174caiwei@126.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 61575012 and 61575013) and the National Key Scientific Instrument and Equipment Development Project, China (Grant No. 2013YQ040877).

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摘要：

We investigated the steady state gamma-ray radiation response of pure-silica-core photonic crystal fibers (PSC-PCFs) under an accumulated dose of 500 Gy and a dose rate of 2.38 Gy/min. The radiation-induced attenuation (RIA) spectra in the near-infrared region from 800 nm to 1700 nm were obtained. We find that the RIA at 1550 nm is related with hydroxyl (OH-) absorption defects in addition to the identified self-trapped hole (STH) defects. Moreover, it is proposed and demonstrated that reduced OH- absorption defects can decrease the RIA at 1550 nm. The RIA at 1550 nm has effectively declined from 27.7 dB/km to 3.0 dB/km through fabrication improvement. Preliminary explanations based on the unique fabrication processes were given to interpret the RIA characteristics of PSC-PCFs. The results show that the PSC-PCFs, which offer great advantages over conventional fibers, are promising and applicable to fiber sensors in harsh environments.

关键词: photonic crystal fibers, radiation-induced attenuation, color centers, fiber optics sensors

Abstract:

We investigated the steady state gamma-ray radiation response of pure-silica-core photonic crystal fibers (PSC-PCFs) under an accumulated dose of 500 Gy and a dose rate of 2.38 Gy/min. The radiation-induced attenuation (RIA) spectra in the near-infrared region from 800 nm to 1700 nm were obtained. We find that the RIA at 1550 nm is related with hydroxyl (OH-) absorption defects in addition to the identified self-trapped hole (STH) defects. Moreover, it is proposed and demonstrated that reduced OH- absorption defects can decrease the RIA at 1550 nm. The RIA at 1550 nm has effectively declined from 27.7 dB/km to 3.0 dB/km through fabrication improvement. Preliminary explanations based on the unique fabrication processes were given to interpret the RIA characteristics of PSC-PCFs. The results show that the PSC-PCFs, which offer great advantages over conventional fibers, are promising and applicable to fiber sensors in harsh environments.

Key words: photonic crystal fibers, radiation-induced attenuation, color centers, fiber optics sensors

中图分类号:  (Sensors, gyros)

  • 42.81.Pa
42.88.+h (Environmental and radiation effects on optical elements, devices, and systems) 61.72.jn (Color centers)