The method analysis of fiber-optic based on scanning confocal interference microscopy

In order to improve the axis chromatography ability, The article introduces interference theory, optical wave-guide theory, and the optical microscope imaging technology into microscope imaging theory, establishes and Fiber-Optic scanning Confocal Interference microscopy based on Michelson interference principle, and illustrates this system's structure and fundamental wording princele, the use of Fourior method to obtain its 3-D amplitude response transfer function. The analysis results show that the difference between fiber-optic confocal interference and traditional confocal method manifest that the detected image intensity is superposition of amplitude instead of optical intensity. It is the description of a purely coherence optical system, therefore provides the stability theory proof for the quantitative microscopy ability of fiber-optic interference microscopy. The blending of interferential technology improves axis chromatography ability. Moreover, the introduction of optical fiber enhances the anti-interference, minimizes the whole system and makes the measuring method more flexible.