Microcrystalline ultra-stable cavity (square cavity)
Our microcrystalline ultra-stable cavity (square cavity) is a high-end core component designed for the cutting-edge precision optics field. It selects microcrystalline glass as the core substrate and combines the core characteristics of ultra-low thermal expansion and ultra-high structural stability. It strictly controls both shape and position accuracy and optical indicators, perfectly matching the extreme application requirements of high-end scenarios such as ultra-stable lasers, quantum technology, gravitational wave detection, etc. It provides high-precision and high-reliability core support for all kinds of cutting-edge optical systems.
Core Product Parameters
Screening metrics | Specific parameters |
External dimensions range | 10×10×10 - 200×200×200mm |
Through-hole diameter and precision | Through hole diameter: φ4-φ12; Perpendicularity of the hole to reference plane: ≤2 '; Hole position: 0.05mm |
Parallelism and perpendicularity of the working surface | 3 "or less - 2 ' |
Work area plane shape | Better than λ/[email protected] |
Work area defects and surface roughness | Work area defects: 40-20; Surface roughness: 0.5nm |
Substrate material | Microcrystalline glass |
Core product advantages
High-end microcrystalline substrate:
Made of microcrystalline glass, it has an ultra-low coefficient of thermal expansion, is resistant to high temperatures and optical damage, and maintains highly stable structural and optical performance in extreme temperature variations, suitable for the harsh conditions of precision optics.
Ultimate form and position accuracy:
Through-hole perpendicularity ≤2 ', positional accuracy 0.05mm, working surface parallelism and perpendicularity ≤3 "-2 ', precise control of form and position tolerances to ensure precise assembly and long-term stable operation of optical systems.
Outstanding performance:
The working area surface shape is better than λ/[email protected], surface roughness is as low as 0.5nm, defect reaches 40-20 standard, excellent optical surface quality significantly reduces light transmission loss and improves system measurement accuracy.
Wide specification fit:
Form size from 10×10×10 to 200×200×200mm, through-hole size φ4-φ12, can match the assembly requirements of different orders of magnitude of cutting-edge optical systems, and supports customized adjustment.
High compatibility for frontier scenarios:
Developed and designed for cutting-edge fields such as ultra-stable lasers, quantum computing, and gravitational wave detection, performance indicators meet industry high-end standards, can be quickly integrated without secondary debugging, and improve system setup efficiency.
Core application areas
Core applications in cutting-edge precision optics and quantum technology fields such as ultra-stable lasers, time-frequency transfer, quantum computing, quantum communication, quantum precision measurement, neutral/cold/Rydberg atom research, gravitational wave detection, etc., are key core components for building high-precision optical reference systems.
High-quality microcrystalline substrate:
Unleashing stable core performance Crafted from high-density microcrystalline materials using specialized integrated molding and bonding technology, our Microcrystalline Ultra-stable Square Cavity offers a unique combination of properties: low thermal expansion coefficient, high mechanical strength, low dielectric loss and minimal outgassing. These characteristics enable the cavity to achieve extreme vacuum levels of 10⁻⁸Pa and maintain long-term vacuum integrity, critical for cold atom physics and low-pressure optical experiments. As a non-magnetic material, the cavity exhibits negligible magnetic interference, ensuring no disruption to atomic spin states or magnetic-sensitive measurements. The microcrystalline substrate is also transparent, allowing visual observation of internal processes while maintaining structural stability. The cavity windows feature double-sided anti-reflection coatings with transmittance exceeding 99%, maximizing light utilization and resonance performance.
Precision square structure design:
Balancing practicality and integration Our Microcrystalline Ultra-stable Square Cavity features a precision-engineered square design with standard dimensions (25mm-50mm side length, 50mm-100mm length), optimized for vacuum sealing and easy integration into experimental setups. The square structure provides multiple flat mounting surfaces for secure attachment to optical tables and vibration isolation platforms, minimizing external disturbance. The cavity is equipped with customizable interface flanges (titanium, 304/316L stainless steel options) to match diverse vacuum system configurations. The optical windows are hermetically sealed using high-vacuum-compatible materials and processes, ensuring no vacuum leakage even under thermal cycling. The square design also facilitates multi-directional optical access, supporting complex light path configurations for cold atom trapping and multi-beam experiments.
Core performance advantages:
Adapt to precise requirements in multiple scenarios Ultraopto’s Microcrystalline Ultra-stable Square Cavity boasts exceptional vacuum stability and mechanical rigidity, withstanding temperature fluctuations and vibration without compromising performance. The cavity’s non-magnetic property makes it ideal for cold atom MOT systems, Magnetic resonance experiments and any application sensitive to magnetic fields. Its high transmittance windows and stable resonance characteristics enable precise laser locking with finesse up to 8,000, suitable for precision spectroscopy and optical frequency metrology. The cavity's microcrystalline construction ensures low thermal drift and long-term stability. with frequency drift controlled below 5Hz/day. Additionally, the cavity is resistant to environmental pollutants and mechanical wear, ensuring reliable operation in both laboratory and industrial environments.
Full-scenario application coverage:
Empowering scientific research and industry Our Microcrystalline Ultra-stable Square Cavity is widely applied in scientific research, advanced manufacturing and aerospace fields. In cold atom physics, it serves as the core component of magnetic optical traps (MOT) for quantum computing, atomic clocks and fundamental physics research. For precision measurement systems, it provides stable resonance conditions for high-resolution spectroscopy and optical frequency standards. In industrial metrology, it enables precise measurement of optical components and materials under vacuum conditions. The cavity also finds use in aerospace optical sensors, vacuum-based laser processing systems and magnetic-sensitive experiments, delivering reliable performance in the most demanding environments.
Customized services:
Meeting personalized needs As a leading manufacturer of ultra-stable optical cavities, Ultraopto offers fully customized Microcrystalline 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), microcrystalline material specifications, operating wavelength (visible to NIR), Our products feature finesse (1,000 - 8,000) and vacuum flange design. We offer custom window coatings, multi-port optical access configurations, and integration with vibration isolation systems. All custom cavities undergo multi-stage strict quality inspection, including vacuum level testing, resonance stability measurement, magnetic property characterization, and mechanical 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 microcrystalline 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 and vacuum technology standards, with each cavity subjected to rigorous testing using vacuum gauges, laser interferometers and frequency stability analyzers. We provide professional technical consultation on cavity selection, vacuum system integration, laser locking implementation and experimental setup optimization, helping you achieve optimal system performance. Whether you need standard cavities for laboratory research or custom solutions for industrial applications, Ultraopto’s Microcrystalline Ultra-stable Square Cavity delivers exceptional value and reliability.
For more detailed technical parameters, product quotation information or custom design solutions for our Ultraopto Microcrystalline 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.
