How to Manage Wavefront Error Budgets in Space Telescopes
wavefront error budget, space telescope optics, surface figure accuracy, telescope alignment

Key Takeaways Meeting strict wavefront error (WFE) budgets is critical for space telescope optics, ensuring nanometer-level imaging accuracy and mission reliability. This article details practical strategies for managing WFE contributions from surface figure, alignment, coatings, and thermal effects. Advanced metrology techniques, such as phase-shifting interferometry and stitching profilometry, support precise wavefront measurement. By integrating custom […]

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Space-Qualified Optical Sensors for ADCS in Small Satellites

Key Takeaways Optical systems are vital to ADCS performance in small satellites, enabling precise attitude determination with star trackers, sun sensors, and Earth horizon sensors.  Avantier supports SWaP-constrained missions with compact, radiation-hardened optics, precision assembly, and mission-specific designs. Avantier’s miniaturized, thermally stable components enhance pointing accuracy and environmental resilience.  From beam steering to photon torquers, […]

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Durable Optical Materials for Harsh Environments
Durable Optical Materials for Harsh Environments

Key Takeaways: Durable optical materials are crucial for reliable performance in extreme environments, enabling next-gen optical systems to withstand radiation and thermal stress. Innovative radiation hardened coatings and thermally stable substrates like Zerodur and Silicon Carbide maintain optical integrity in harsh conditions. Meta-optics and nanophotonic structures offer compact and robust alternatives for advanced optical functionalities […]

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Free Space Optical Communications

Key Takeaways Free space optical communications (FSOC) uses modulated laser or LED beams to wirelessly transmit data through free space.  It offers high bandwidth, low latency, and secure transmission—ideal for space, air, sea, and land applications.  FSOC systems vary by type (coherent/incoherent), range, platform, and architecture. Despite benefits, FSOC faces challenges like signal alignment and […]

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Space-Based LIDAR and Hyperspectral Imaging

Key Takeaways for Space-Based LIDAR and Hyperspectral Imaging Technological Advancements: LIDAR offers precise 3D elevation data, while hyperspectral imaging captures detailed spectral bands for material analysis.  Complementary Insights: The integration of LIDAR’s structural data with hyperspectral imaging’s material identification provides a deeper understanding of environmental and geological processes.  Commercial Applications: These technologies are increasingly applied […]

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Reflector telescope

The reflector telescope is unique among telescopes because of its reflective design. Instead of using lenses to refract or bend light to form images, it uses a combination of curved surfaces and flat mirrors to reflect light for imaging.

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