Method for optimizing the capture range of the dispersed fringe sensor

Area of Science:

• Optical Engineering
• Interferometry

Background:

• The dispersed fringe sensor (DFS) is crucial for phasing measurements.
• Its performance is limited by its capture range.

Purpose of the Study:

• To theoretically and experimentally analyze the capture range characteristics of the DFS.
• To develop a mathematical description for the DFS capture range.
• To propose a practical strategy for maximizing the DFS capture range.

Main Methods:

• White-light double-slit interferometry principles.
• Theoretical analysis of capture range.
• Experimental characterization of DFS performance.
• Development of an optimization strategy.

Main Results:

• A novel mathematical description of the DFS capture range was established.
• A simple and effective strategy to maximize the DFS capture range was identified.
• Experimental validation confirmed the accuracy of the mathematical model and the optimization strategy.

Conclusions:

• The developed mathematical description accurately predicts DFS capture range.
• The proposed strategy effectively enhances DFS performance by maximizing its capture range.
• This work provides a practical method for optimizing DFS in relevant applications.