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Unimorph deformable mirror for space telescopes: environmental testing.

Peter Rausch, Sven Verpoort, Ulrich Wittrock

|February 3, 2016

Summary

This summary is machine-generated.

A new piezoelectric deformable mirror for space telescopes was developed and tested. It successfully operated in thermal vacuum and met stringent space environment requirements, demonstrating its readiness for space applications.

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Area of Science:

Optics and Photonics
Aerospace Engineering
Materials Science

Background:

Space telescopes require advanced optical components capable of in-space adjustments.
Deformable mirrors are crucial for wavefront correction in high-resolution imaging systems.
Piezoelectric actuators offer precise and reliable control for optical surfaces.

Purpose of the Study:

To develop and manufacture a unimorph deformable mirror for space telescope applications.
To evaluate the mirror's performance and compliance with space environment requirements.
To assess the suitability of piezoelectric actuation for space-based optical systems.

Main Methods:

Developed a 50 mm aperture unimorph deformable mirror with 44 piezoelectric actuators.
Conducted space compliance tests including thermal vacuum operation (100 K), random/sinusoidal vibrations, and ionizing irradiation.
Assessed operational lifetime and laser power handling capabilities.

Main Results:

The deformable mirror successfully operated in thermal vacuum at 100 K.
The mirror demonstrated resilience to vibration and ionizing radiation.
Performance metrics indicated compliance with demanding space mission requirements.

Conclusions:

The developed piezoelectric deformable mirror is suitable for space telescope applications.
The mirror meets key space compliance requirements, including thermal, vibration, and radiation resistance.
This technology advances the capabilities of adaptive optics in space exploration.