摘要
近年来新型的紫外激光写入的光纤布拉格光栅元件（ＦＢＧ）以其具有直接写人光纤芯区、插入损耗小、易于全光集成及波长选择性好、传感信息对波长绝对编码等优点，成为国内外光纤技术领域的研究热点。该论文综述了ＦＢＧ制作技术的进展，介绍和比较了各种制作方法的优缺点，对ＦＢＧ在光纤通讯、光纤传感器等方面的应用前景进行了分析和说明，结果表明ＦＢＧ将对整个光纤技术领域产生重要的影响。
The effect of coating, which is formed with laser cladding and plasma spurt welding on base metal of anti acid stainless steel, on anti corrosion has be studied.A 5kW laser with CO 2 flow transverse is used for cladding Co base alloy or Ni base alloy powder replaced on the base metal. Comparing with the plasma spurt welding layers, the laser cladding layers have lower defect rate and dilution rate effected by base metal. And they have higher finished product rate, hardness and strength, fine microcrystal grain size, etc. The results of the test show that the laser cladding layers have superior properties of resistance to corrosion.
出处
《光学技术》
CAS
CSCD
1999年第2期50-53,共4页
Optical Technique
基金
国家教委博士点专项基金
关键词
光纤布拉格光栅
制作技术
光纤通讯
光纤传感器
laser cladding
plasma spurt welding
properties of resistance to corrosion
