掺铥锗酸盐玻璃光纤预制棒的化学腐蚀抛光对芯包界面缺陷的影响

Effect of chemical polishing on interface defects in Tm^(3+)-doped germanate glass fiber perform

通过不同溶液对玻璃表面进行清洗腐蚀,并用片状玻璃在马弗炉中模拟拉丝情况实验,研究了掺铥锗酸盐玻璃光纤纤芯和包层界面在不同的溶液清洗腐蚀条件下的界面缺陷.研究表明,用pH=2.5的HCl溶液,能够有效溶解残留在玻璃表面的杂质,最大限度的降低芯包界面的缺陷,避免了芯包界面微晶.在此研究基础上,将同组分的锗酸盐玻璃制成预制棒,在拉丝炉上进行拉丝实验,获得了芯包界面良好的掺铥锗酸盐玻璃光纤.

Chemical polishing with different solutions and imitating fiber drawing with glass sheets were adoped,the effect of chemical polishing quality on defects of interface in Tm3＋-doped germanate glass fiber perform was investigated. The results show that HCl with pH=2.5 can dissolution impurities efficiently. According to the analyses,the germanate glass fiber perform was made to draw glass fibers with little defects between core and cladding.