An Avantier customer requested a small optical system that could support high-resolution space observation while meeting demanding aerospace environmental and structural standards. The key challenges included:
- Integrated five functional mirrors with a system diameter of less than 400 mm
- Obtained optical surface accuracy of λ/20
- Maintaining structural stability under launch stresses of up to 10 G
- Reducing system bulk while maintaining stiffness and alignment stability
- Providing consistent performance from -30 °C to 50 °C
- Preventing optical degradation due to vibration, thermal deformation, and structural stress
Meeting these objectives required a careful balance of optical performance, lightweight design, manufacturability, and environmental robustness.
Avantier Solution
Avantier offered a fully integrated development method that included design, simulation, production, and validation. The project included:
- Developing optical and mechanical architecture
- Compact mirror structure design
- Optimized structural and thermal performance
- Analyzing many physics simulations
- High-precision optical manufacturing
- Implementing aerospace-grade reflective coatings
- Provide assembly and alignment support
Avantier improved system performance throughout development by combining optical engineering expertise with vertically integrated production capabilities, reducing technical risk and speeding deployment.
Engineering Highlights
Customized Lightweight Mirror Architecture
Avantier created unique lightweight mirror structures for each optical element to meet ambitious mass reduction requirements while maintaining optical performance.
The engineering team optimized lightweight patterns, support arrangements, and structural connections based on each mirror's optical sensitivity and loading properties. This method enabled substantial weight reduction while preserving structural stiffness, alignment stability, and optical precision throughout the system.
Multi-Physics Structural Optimization
Avantier conducted detailed simulation analyses covering:
- Modal vibration
- Static launch loads
- Thermal deformation
- Stress distribution
- Structural stability
Through iterative design optimization and topology refinement, the system established a compromise between lightweight construction and environmental robustness. The finished design demonstrated:
- Fundamental frequency exceeds 100 Hz
- Stable performance under 10 G launch loads
- Controlled thermal deformation over the whole working temperature range
These qualities enable dependable long-term operation in challenging aeronautical settings.
Ultra-Precision Optical Manufacturing
Avantier used innovative manufacturing methods, including:
- Ultra-precision diamond turning
- High-precision polishing
- Controlling surface defects
- Precision metrology and inspection
- Extremely clean processing conditions
These methods allowed for the creation of lightweight optical components with nanometer-scale precision while maintaining good structural integrity and surface quality.
Aerospace-Grade Reflective Coating Technology
Avantier used a specific high-reflectivity optical coating method designed for lightweight aerospace optical structures. The coating system provides:
- Reflectivity above X%
- Excellent coating homogeneity
- High adhesion strength
- Resistance to thermal cycling
- Long-term environmental durability
The result is consistent optical performance throughout the mission's duration.
Image Credit: Marc Ward/Shutterstock.com
Results
The final optical system met all of the project's key objectives.
Source: Avantier Inc.
| Parameter |
Performance |
| Optical Surface Accuracy |
λ/20 |
| Surface Roughness |
2 Å |
| Reflectivity |
≥ 98% |
| Fundamental Frequency |
≥ 100 Hz |
| Launch Load Resistance |
10 G |
| Operating Temperature Range |
-30 °C to 50 °C |
| Lightweight Ratio |
70% |
| System Diameter |
≤ 400 mm |
The optical assembly has successfully passed environmental and performance evaluation and is appropriate for demanding space observation and remote sensing tasks.
Customer Benefits
The project allowed the customer to:
- Optimize optical performance while reducing payload mass
- Ensure alignment stability throughout launch and operational situations
- Enhance long-term environmental reliability
- Optimize engineering processes using simulation to minimize risk
- Boost development with integrated design and production support
By collaborating with Avantier early in the development process, the customer gained access to both engineering expertise and manufacturing execution, resulting in a more efficient path from idea to flight-ready hardware.
Representative Application Example: Space Optical Communication System
Application
Space optical communications and satellite laser communication systems use wavelengths ranging from 1530 to 1560 nanometers.
Customer Challenge
A customer requested a custom off-axis parabolic (OAP) telescope and transmit collimator for a space-based laser communication device. The key challenges included:
- Limited understanding of OAP manufacturing trade-offs and fabrication restrictions
- Strict wavefront error requirements
- Aim for a system mass of less than 5 kg
- The telescope architecture has tight packaging limitations
- Optimizing optical performance, thermal stability, and flight hardware requirements
- Managing beam-path integration and rising challenges within a limited space
Avantier Solution
Avantier collaborated closely with the customer using a co-engineering development strategy. Support activities consisted of:
- Evaluating various telescope topologies and OAP configurations
- Assessing manufacturing feasibility and costs
- Analyzing tolerance and optimizing lead times
- Proposed mirror requirements and fabrication strategies
- Developed an optomechanical mounting concept
- Provide structural integration support
- Conducted environmental analysis consultations
- Plan for assembly and alignment
- High-quality implementation guidance
Customer Value
Early-stage engineering collaboration decreased technical risk, enhanced manufacturability, and hastened the development of a flight-ready optical communication system.
This project highlights Avantier's ability to serve customers as a precision optics producer and a collaborative engineering partner throughout the product development lifecycle.
Why Customers Work with Avantier
Avantier helps customers throughout the whole development lifecycle of innovative optical systems. The core capabilities include:
- Developing optical system architectures
- Design for Manufacturability (DFM)
- Co-engineering for optical and mechanical systems
- Validation and simulation using multiple physics
- High-precision optical production
- Aerospace-grade coating technology
- Provide assembly and alignment support
- Provide qualification and environmental testing support
This integrated strategy reduces development risk, improves performance, and accelerates deployment timetables.
This information has been sourced, reviewed, and adapted from materials provided by Avantier Inc.
For more information on this source, please visit Avantier Inc.