ULE Ultra-stable cavity (square cavity)
ULE ultra-stable cavity (square cavity) is a core optical device for ultra-stable laser, quantum technology and other cutting-edge high-precision fields. It is made of high-quality ULE material and processed by ultra-precision technology, with outstanding performance in dimensional accuracy, surface quality and structural stability, and can fully meet the strict requirements of high-end scientific research and engineering applications. It provides highly reliable optical core support for research in all kinds of frontier optical and quantum fields.
Core application areas
It is widely applicable to cutting-edge research and technology application scenarios such as ultra-stable lasers, time-frequency transfer, quantum computing, quantum communication, quantum precision measurement, neutral atoms, cold atoms, Rydberg atom research, gravitational wave detection, etc.
Key technical parameters
Indicators | Specific parameters |
External dimensions range | 10×10×10-200×200×200 |
Through-hole diameter and precision | Aperture φ4-φ12; Position 0.05; Perpendicularity to the reference plane ≤2 ' |
Parallelism and perpendicularity of the working surface | ≤(3 "-2 ') |
Work area plane shape | Better than λ/[email protected] |
Work area defects and surface roughness | Defects 40-20; Surface roughness 0.5nm |
Fabrication materials | ULE |
Precise structural design:
Balancing compactness and stability Our ULE Ultra-stable Square Cavity features a precision-engineered square design with a compact footprint (standard 25mm-50mm side length, 50mm-100mm length), This makes it ideal for portable and space-constrained systems such as handheld laser spectrometers and satellite-borne sensors. The square structure provides multiple flat mounting surfaces for easy integration with thermal control systems and vibration isolation platforms. An integrated vacuum port enables evacuation to levels better than 10⁻⁶Pa. eliminating air-induced refractive index fluctuations. The cavity incorporates internal thermal channels to enhance temperature uniformity, while the rigid square frame minimizes deformation under mounting stress. Mirror bonding via optical contact ensures long-term stability without adhesive-induced drift.
Core performance advantages: Adapted for compact and precise scenarios
Ultraopto's ULE Ultra-stable Square Cavity features outstanding frequency stability with an Allan variance of approximately 1×10⁻¹⁵, meeting the demands of atomic clocks and quantum computing. The cavity demonstrates high finesse (up to 15,000) thanks to ultra-high mirror reflectivity. enabling sharp resonance peaks for precise laser locking. Its compact design offers low acceleration sensitivity (~2×10⁻¹⁰/g) and excellent vibration resistance, while multi-layer thermal shielding attenuates environmental temperature noise. The cavity supports fundamental mode (TEM₀₀) operation, suppressing higher-order modes for pure frequency reference signals. It operates over a wide temperature range (14°C-40°C) with minimal performance degradation, and long-term drift is controlled below 1Hz/day.
Full-scenario application coverage:
Empowering compact high-end optics Our ULE Ultra-stable Square Cavity is widely applied in cutting-edge scientific, industrial and aerospace fields. In portable atomic clocks and quantum computing modules, its compact size and high stability enable miniaturization of precision timekeeping and quantum processing systems. For precision spectroscopy and optical frequency metrology, it provides a stable reference for high-resolution spectral analysis and laser locking. In aerospace and satellite-borne sensors, the square cavity’s rigid structure and compact design withstand launch vibrations and space constraints. The cavity also finds use in portable laser stabilization systems, fiber sensing and medical laser devices, delivering reliable ultra-stable performance in compact form factors.
Customized services:
Meeting personalized needs As a leading manufacturer of ultra-stable optical cavities, Ultraopto offers fully customized ULE Ultra-stable Square Cavity solutions to meet your unique application requirements. Our professional R&D team can tailor key parameters including cavity dimensions (side length 25mm-100mm, length 50mm-200mm), mirror configuration, operating wavelength (UV to NIR), Finesse (600 - 15,000) and zero-expansion temperature point (2°C - 40°C). We support custom vacuum flange designs, multi-wavelength coatings and integrated thermal control systems for extreme environments. All custom cavities undergo multi-stage strict quality inspection, including cavity length measurement, frequency stability testing, reflectivity verification and structural rigidity assessment. with a detailed quality report provided to ensure compliance with your design specifications.
Quality Assurance and Technical Support:
Your Trusted Choice Backed by advanced ULE processing technology and a complete quality control system, Ultraopto ensures stable batch supply and consistent product quality. Our production processes adhere to international precision optical standards, with each cavity subjected to rigorous testing using laser interferometers, frequency stability analyzers and environmental chambers. We provide professional technical consultation on cavity selection, integration with vibration isolation systems, vacuum setup and laser locking implementation. Whether you need standard cavities for laboratory research or custom compact solutions for portable devices, Ultraopto’s ULE Ultra-stable Square Cavity delivers exceptional value and reliability.
For more detailed technical parameters, product quotation information or custom design solutions for our Ultraopto ULE Ultra-stable Square Cavity, please contact our professional sales and technical team through the official website, and we will provide you with efficient, personalized and professional optical solutions.
