摘要
全光纤VISAR进入干涉仪能产生干涉的两光束光程差近似为零 ,是全光纤VISAR测速的前提条件 .对此 ,研究了低输入光功率时 ,单模光纤的色散对全光纤VISAR光程差的影响 。
The fiber optic velocity interferometer system will be capable of performing velocity measurements only when the two light beams are interferential which have the closest optical path among the light beams in this system. Analysis of the coherence of the above two light beams is presented, allowing for dispersion in the single mode optical fibers. Also the case is discussed that the measured surface has a high speed.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
2003年第2期283-286,共4页
Journal of Sichuan University(Natural Science Edition)
