Tunable lenses: dynamic characterization and fine-tuned control for high-speed applications

Area of Science:

• Optics and Photonics
• Instrumentation and Measurement

Background:

• Tunable lenses are increasingly used in diverse fields like microscopy and vision correction.
• Accurate control of optical power in response to dynamic inputs is crucial for many applications.

Purpose of the Study:

• To present a fast focimeter for characterizing the dynamic response of tunable lenses.
• To develop a compensation strategy for temporal distortions in tunable lenses.

Main Methods:

• A fast focimeter with a 3.8 KHz bandwidth was utilized.
• The dynamic response of various tunable lens models was characterized.
• A linear time-invariant model was employed for compensation strategy development.

Main Results:

• The temporal response of tunable lenses was found to be repetitive and linear.
• A robust compensation strategy was successfully developed and demonstrated.
• The characterization procedure directly assesses transient response and temporal distortions.

Conclusions:

• This work introduces the first direct characterization and compensation method for tunable lens temporal distortions.
• The developed method enables the use of tunable lenses in high-speed applications.
• The findings broaden the applicability of tunable lenses in dynamic optical systems.