Yang Hang Zhou, Qiao Xue Guang, Das S, Paul Mukul Chandra
Opt Lett. 2014 Nov 15;39(22):6438-41. doi: 10.1364/OL.39.006438.
The work demonstrates for the first time a thermal regenerated grating (RG) operating at an ultra-high temperature up to 1400°C. A new class of photosensitive optical fiber based on erbium-doped yttrium stabilized zirconia-calcium-alumina-phospho silica (Er-YZCAPS) glass is fabricated using modified chemical vapor deposition (MCVD) process, followed by solution doping technique and conventional fiber drawing. A type-I seed grating inscribed in this fiber is thermal regenerated based on the conventional thermal annealing technique. The investigation result indicates that the produced RG has an ultrahigh temperature sustainability up to 1400°C. The measured temperature sensitivities are 14.1 and 15.1 pm/°C for the temperature ranges of 25°C-1000°C and 1000°C-1400°C, respectively.
这项工作首次展示了一种在高达1400°C的超高温下运行的热再生光栅（RG）。基于掺铒钇稳定氧化锆 - 钙 - 氧化铝 - 磷硅石（Er - YZCAPS）玻璃的新型光敏光纤，采用改进的化学气相沉积（MCVD）工艺，随后通过溶液掺杂技术和传统光纤拉丝工艺制造而成。基于传统热退火技术，对刻写在这种光纤中的I型种子光栅进行热再生。研究结果表明，所制备的RG在高达1400°C时具有超高的温度稳定性。在25°C - 1000°C和1000°C - 1400°C温度范围内，测得的温度灵敏度分别为14.1和15.1 pm/°C。
