无机材料学报

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介质(Ag/AgI)镀层空芯玻璃光纤的制备及红外传输性能的研究

文天发; 高建平; 卞蓓亚; 沈菊云   

  1. 中国科学院上海硅酸盐研究所 上海 200050
  • 收稿日期:2000-09-15 修回日期:2000-10-17 出版日期:2001-09-20 网络出版日期:2001-09-20

Preparation and IR Transmission Properties of Ag/AgI Hollow Glass Waveguides

WEN Tian-Fa; GAO Jian-Ping; BIAN Bei-Ya; SHEN Ju-Yun   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:2000-09-15 Revised:2000-10-17 Published:2001-09-20 Online:2001-09-20

摘要: 介质(Ag/AgI)镀层空芯玻璃光纤是一种较好的传输红外激光的柔性光纤材料.采用液相化学沉积法成功地制备了内径分别为1.0、0.53、0.32mm,长度为1.5m的介质(Ag/AgI)镀层玻璃空芯光纤.利用傅里叶红外光谱仪和 LJL-35A CO激光器分别测试了介质(Ag/AgI)镀层玻璃空芯光纤的传输损耗,测试结果表明:介质(Ag/AgI)镀层空芯玻璃光纤在2.5~20μm波长范围内有较低的损耗值;随着光纤内径(α)的增大,空芯光纤的传输损耗(α)降低,这与Migagi理论(α ∝1/α)相符合.另外,由于光纤的注入端头发热致使介质(Ag/AgI)镀层空芯玻璃光纤的传输损耗随注入功率的增加而增大.

关键词: 空芯玻璃光纤, 液相化学沉积法, 传输损耗

Abstract: Ag/AgI hollow glass waveguides are an attractive and flexible fiber for the delivery systems of IR radiation. By the liquid-phase chemistry deposition technique Ag/AgI
hollow glass waveguides with a length of 1.5m and an inner diameter of 1.0, 0.53, 0.32mm, respectively, were successfully fabricated. With the cutback method the attenuation
of waveguides was measured by using Infrared Fourier Translation Spectrometer (FTS--65A) and LTL--35A CO2 laser. The results show that the attenuation (α) of Ag/AgI
hollow glass waveguides is low within 2.5-20μm wavelength and decreases with the increment of the inner diameter(a) as α∝1/α .
Due to the heat on the insert end of waveguides the attenuation increases as the input power enlarges.

Key words: hollow glass waveguides, liquid-phase chemistry deposition technique, attenuation

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