The Sapphire Super Stable Cavity-Square Cavity redefines stability in high-precision optical systems, combining synthetic sapphire’s unmatched material properties with revolutionary square geometry. Designed for labs pushing boundaries in quantum computing, atomic clocks, and gravitational wave detection, this cavity delivers sub-ppb thermal drift performance even under extreme conditions. With customizable dimensions (10x10x10mm to 200x200x200mm) and UHV-compatible mounting, it solves critical challenges in resonance frequency stability and mode distortion.
| Parameter | Specification |
|---|---|
| Dimensions | L*L*L = 10*10*10 - 200*200*200mm |
| Through hole diameter | D = φ4 - φ12mm |
| Parallel and vertical between working faces | ≤ (3" - 2') |
| Working area surface shape | Better than λ/8 |
| Work area defect | Better than 40/20 |
| Material | Single crystal silicon |
Note: Specifications can be customized to meet your specific requirements.

Achieve <1e-18 uncertainty in strontium/ytterbium clock transitions with cavities that resist vibration-induced phase noise.
Boost detection sensitivity 100x in methane/CO₂ monitoring systems through 300m effective path lengths.
Store photon states for 10ms+ durations using our defect-free sapphire substrates and λ/8 surface flatness.
Meet ESA/NASA vibration specs with cavities surviving 50G mechanical shocks and -80°C–+150°C thermal cycling.

> "The Sapphire Super Stable Cavity-Square Cavity enabled our team to hit 6-month stability milestones in portable quantum clock prototypes."
> Dr. Elena Vogt, Max Planck Institute for Quantum Optics
> "Zero mode degradation after 10,000 thermal cycles – these cavities outperform fused silica by orders of magnitude."
> NIST Quantum Measurement Division
Email xachaona@163.com to:
1. How does square geometry improve performance over circular designs?
The right-angle configuration enables tighter mode confinement in confined spaces while reducing polarization-dependent losses by 30%.
2. What thermal expansion coefficient (CTE) can you guarantee?
Our Sapphire Super Stable Cavity-Square Cavity achieves CTE <5×10⁻⁷/K from 4K–300K, verified via NIST-traceable interferometry.
3. Do you provide custom coatings?
Yes – choose from SiO₂/Ta₂O₅, Al₂O₃, or hybrid coatings optimized for your wavelength (350–2000nm).
4. How do you ensure vacuum compatibility?
All cavities undergo helium leak testing to <5×10⁻¹⁰ mbar·L/s rates before UHV flange installation.
Ready to elevate your optical systems with our premium Sapphire Super Stable Cavity-Square Cavity? Reach out to our team of experts today at xachaona@163.com. We're here to answer your questions, provide detailed specifications, and help you find the perfect solution for your advanced optical applications.
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