Muhs J D, Leilabady P A, Corke M
Appl Opt. 1988 Sep 1;27(17):3723-7. doi: 10.1364/AO.27.003723.
The use of fiber optics in the field of optical holography is discussed with emphasis on the design of systems used to overcome several inherent shortcomings associated with fiber-optic holographic systems. Specifically, random environmentally induced optical phase changes within the fiber are minimized by employing a Michelson interferometer in conjunction with a closed loop feedback system. Furthermore, by using several passive single-mode couplers, complete object illumination via several illumination fibers is observed. Finally, by implementing a Mach-Zehnder interferometric technique, control of the object and reference beam intensity ratios in a fiber-optic holographic system can be accomplished. The resulting schemes are very stable and highly versatile systems suitable for remote holographic interferometric sensing and other applications where conventional holography techniques are impractical. Experimental results on fringe visibility, fringe stability, and the stabilization of object/reference beam intensity ratios are also given along with a composite summary of the overall system constraints associated with fiber-optic holographic systems.
本文讨论了光纤在光学全息领域的应用,重点介绍了用于克服光纤全息系统若干固有缺点的系统设计。具体而言,通过将迈克尔逊干涉仪与闭环反馈系统结合使用,可将光纤内随机的环境诱导光学相位变化降至最低。此外,通过使用多个无源单模耦合器,可以观察到通过多根照明光纤实现的对物体的完全照明。最后,通过实施马赫-曾德尔干涉技术,可以实现对光纤全息系统中物体光束和参考光束强度比的控制。所得到的方案是非常稳定且用途广泛的系统,适用于远程全息干涉传感以及其他传统全息技术不实用的应用场景。文中还给出了关于条纹可见度、条纹稳定性以及物体/参考光束强度比稳定性的实验结果,以及与光纤全息系统相关的整体系统约束的综合总结。