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Calculating of Absorption Loss Due to High Harmonics of C-H Vibrations in PMMA POF
Chu Jiurong,Wen Xuming,Xu Chuanxiang
Author NameAffiliationE-mail
Chu Jiurong College of Electric Engineering, Xi’an Jiaotong University, Xi’an 710049 chujr@263.net 
Wen Xuming College of Electric Engineering, Xi’an Jiaotong University, Xi’an 710049  
Xu Chuanxiang College of Electric Engineering, Xi’an Jiaotong University, Xi’an 710049  
Abstract:
Absorption loss due to high harmonics of C-H vibrations, the primary loss factor in PMMA POF, was analyzed and calculated. And the results were consistent with measured datas. The mechanism that deuterating and fluorinating could decrease loss of POF was theoretically approved. Absorption wavenumber and loss of streching vibration and bending vibration of different quantum number were obtained. With increasing of wavelength, absorption loss due to high harmonics of C-H vibrations increased and absorption loss of stretching vibration was higher one order of magnitude than that of bending vibration, and both was in proportion to quantum number respectively.
Key words:  Plastic optical fiber, Absorption loss, High harmonics of C-H vibrations
FundProject:
PMMA塑料光纤中C-H谐波吸收损耗的计算
储九荣*,温序铭,徐传骧
摘要:
通过对PMMA塑料光纤中的主要损耗因素C-H谐波吸收进行了理论分析,并进行了定量计算,结果与实际测量数据一致.并从理论上验证了氘化、氟化降低塑料光纤损耗的机理.得到不同量子数的伸缩振动和弯曲振动的吸收波数和损耗.随着波长的增加,C-H谐波吸收损耗增加,而伸缩振动的吸收损耗比弯曲振动高一个数量级,且两者分别与量子数呈线性关系.
关键词:  塑料光纤  吸收损耗  C-H高谐振动
DOI:10.1088/1674-0068/15/1/37-40
分类号: