Thermal sensitivity of photonic crystal fibers in opto-electronic oscillators
Thermal sensitivity of photonic crystal fibers in opto-electronic oscillators作者机构:Deptartment of ECEDrexel University
出 版 物:《The Journal of China Universities of Posts and Telecommunications》 (中国邮电高校学报(英文版))
年 卷 期:2009年第16卷第4期
页 面:1-6页
核心收录:
学科分类:080904[工学-电磁场与微波技术] 0809[工学-电子科学与技术(可授工学、理学学位)] 08[工学]
基 金:supported by F. Deborgies from the European Space Agency (ESA)
主 题:opto-electronie oscillators frequency stability phase noise temperature sensitivity photonic crystal fiber hollow and solid core PCF
摘 要:Stable opto-electronic oscillators (OEOs) are realized using long fiber delay lines and changes in the index of refraction of high quality factor delay line results in temperature sensitivity of OEOs. Temperature sensitivity of various OEOs is measured to compare index of refraction variation of standard (SMF-28) and photonic crystal fiber (PCF). Both hollow-core (HC) and solid-core (SC) versions of PCF are quantified. SC-PCF exhibited a factor of three reductions in the rate of index of refraction change (about +4.7 ppm/℃) with temperature over SMF-28 (about 12 ppm/℃) based OEO. Although HC-PCF have a greater attenuation per unit length, but those fibers have demonstrated a negative rate of change (about - 0.6 ppm/℃) in the effective index of refraction with temperature and prospect of thermal stability in the OEO using passive techniques is great when a combination of HC-PCF and SMF-28 are employed as fiber delay lines.