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Updated: Jun 26, 2026
15:25
Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
Published on: February 4, 2018
A new method for determining the transfer function of an acousto optical tunable filter.
A Mahieux1, V Wilquet, R Drummond
1Belgian Institute for Space Aeronomy, Brussels, Belgium. arnaud.mahieux@aeronomie.be
Optics Express
|February 4, 2009
Summary
This study determines the Acousto Optical Tunable Filter (AOTF) transfer function using solar observations from the Venus Express SOIR instrument. The method reconstructs the AOTF
Area of Science:
- Planetary Science
- Instrument Calibration
- Optical Physics
Background:
- The SOIR instrument on Venus Express collects solar observations.
- Acousto-Optical Tunable Filters (AOTF) are crucial for spectral selection.
- Understanding instrument transfer functions is vital for data accuracy.
Purpose of the Study:
- To determine the transfer function of the SOIR instrument's AOTF.
- To develop a method for reconstructing the AOTF transfer function profile.
- To analyze the AOTF transfer function's evolution with radio frequency.
Main Methods:
- Utilized in-flight solar observations from the Venus Express mission.
- Analyzed various solar spectral lines to reconstruct the transfer function.
- Correlated transfer function changes with AOTF radio frequency settings.
Main Results:
- Successfully determined the AOTF transfer function profile.
- Demonstrated a novel technique for transfer function reconstruction.
- Observed the dynamic evolution of the transfer function based on radio frequency.
Conclusions:
- The proposed method accurately characterizes the SOIR AOTF transfer function.
- This technique provides insights into instrument performance over time.
- The findings are crucial for accurate solar spectral analysis from Venus Express.
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