Computer-guided alignment I : Phase and amplitude modulation of alignment-influenced optical wavefront

Area of Science:

• Optical Engineering
• Computational Optics
• Alignment Systems

Background:

• Accurate alignment is critical for multi-element optical systems.
• Existing models may not fully capture complex inter-element influences on wavefronts.

Purpose of the Study:

• To develop a model for computer-guided alignment (CGA) influence on optical wavefronts.
• To quantify the impact of alignment parameters and influence functions on phase and amplitude modulation.
• To assess the model's effectiveness in predicting wavefronts of mis-aligned systems.

Main Methods:

• Modeling alignment influence using complex-form alignment parameters and influence functions.
• Approximating ray-traced target wavefronts of randomly mis-aligned multi-element systems.
• Incorporating coupled non-linear inter-element effects into the model.

Main Results:

• The developed alignment influence model approximates target wavefronts.
• Including coupled non-linear influences improved prediction accuracy by approximately 100 times.
• The significance of inter-element effects in optical alignment was demonstrated.

Conclusions:

• The alignment influence model provides a significant improvement in predicting optical wavefronts.
• The model highlights the importance of inter-element effects in multi-element systems.
• The developed model shows potential for rectifying mis-alignment in optical systems.