Advanced Modular Beam Quality Analyzer for Laser beam Characterization – Kalas
The Kalas Large Beam Analysis System is a modular, high-accuracy beam qualification solution designed for comprehensive characterisation of large laser beams—up to 127...
Advanced Modular Beam Quality Analyzer for Laser beam Characterization – Kalas
The Kalas Large Beam Analysis System is a modular, high-accuracy beam qualification solution designed for comprehensive characterisation of large laser beams—up to 127 mm (5″) aperture—in a single-shot measurement. The system integrates advanced wavefront and intensity measurement modules to calculate critical beam parameters, including divergence, waist size and position, beam quality factor (M²), and detailed wavefront error with nanometric precision (< 15 nm RMS). This capability makes Kalas ideally suited for precision laser qualification where large apertures and high accuracy are essential.
With fully standalone modules that can be reconfigured or operated independently, Kalas simplifies large-beam metrology for laser testing, optical alignment, adaptive optics, and real-time diagnostics. Its flexible architecture supports demanding industrial and research environments, enabling fast setup, reliable measurements, and deep insight into beam performance across a wide range of laser systems.
United Spectrum Instruments is the official distributor of Phasics products in India, providing sales, technical support, and strong application expertise. United Spectrum Instruments supports seamless integration of Phasics solutions—including advanced beam analysis and industrial wavefront systems—into both industrial production lines and R&D workflows.
Understanding Kalas Large Beam Analysis system
The Kalas system is engineered for complete laser beam characterization by combining high-resolution wavefront sensing with intensity profiling in a single acquisition. Utilizing Phasics’ proprietary quadrature wave lateral shearing interferometry (QWLSI) technology and compatible with advanced SID4 wavefront sensors, Kalas measures both phase and intensity over large apertures — far beyond typical beam profilers. The modular architecture supports various entrance pupil diameters and configurable components that can be used standalone or integrated together, giving users flexible, scalable metrology suited for laboratory, research and industrial laser environments. This enables accurate evaluation of critical laser performance metrics without complex alignment or relay optics.
Technical Specifications
| Specification | Details |
| Compatible Sensors | SID4 / SID4 HR / SID4 SWIR / SID4 SWIR HR |
| Max Beam Diameter | Up to 127 mm (5″) |
| Wavelength Coverage | 405 nm, 530 nm, 740 nm, 780 nm, 810 nm, 850 nm, 940 nm, 1050 nm, 1550 nm (others on request) |
| Measurement Metrics | Wavefront, Intensity, Divergence, Waist, M² |
| Accuracy | < 15 nm RMS |
| Weight | ~15 kg |
| Dimensions | 450 × 350 × 250 mm³ (for 127 mm unit) |
| Modules | Standalone or integrated wavefront & illumination modules |
| Dynamic Range | High, vibration-insensitive |
| Single-Shot Output | Yes: full beam parameters |
Key Features and Advantages
Modular and Flexible Beam Analysis
The Kalas system is designed around a modular philosophy, enabling users to configure or expand the setup for specific measurement needs. Key modules — such as wavefront sensors, beam expanders and illumination units — can operate standalone or together, offering flexibility for different test configurations. This modularity ensures future adaptability without needing entirely new hardware investments.
Large Aperture Compatibility
Kalas accommodates very large beam diameters — up to 127 mm (5″) — enabling accurate qualification of high-power and large-aperture lasers used in research, manufacturing, or adaptive systems. Larger pupil options are available on demand, making this station suitable for both standard and nonstandard beam conditions.
Comprehensive Beam Metrics in One Shot
Using advanced wavefront sensing technology, Kalas simultaneously measures wavefront and intensity profiles, then computes divergence, beam waist dimensions and beam quality M² in a single acquisition. This eliminates the need for multiple instruments or sequential measurements, saving time and complexity during setup.
High Accuracy & Robust Performance
With measurement accuracy of < 15 nm RMS, the system delivers high-precision results even in real-world environments. Its design is inherently less sensitive to vibration and environmental fluctuations, providing reliable performance without extensive isolation or complex mounting.
Easy Integration and Deployment
Kalas integrates with existing wavefront sensors and analysis software, enabling seamless deployment into laser laboratories, optical alignment stations or adaptive optics loops. Its intuitive configuration and single-shot methodology make the system accessible for both expert and novice users alike.
Applications Across Industries
Laser Research & Development
In advanced laser R&D labs, accurate beam characterization across large apertures is essential for validating design performance, optimizing beam delivery and tuning high-power systems. Kalas enables detailed assessment of wavefront quality, divergence and beam quality factor M², supporting development of cutting-edge laser sources and beam shaping solutions.
High-Power Laser Systems & Adaptive Optics
For high-intensity or active laser systems — including amplifier chains and adaptive optics setups — real-time evaluation of beam parameters is crucial for tuning and closed-loop control. Kalas’ single-shot, comprehensive measurement outputs help optimize system alignment and adaptive correction in dynamic environments.
Optical Manufacturing & Quality Control
In production environments where large laser beams are used for cutting, welding or material processing, Kalas helps quality engineers verify beam parameters and ensure consistent output. Accurate divergence and waist measurements support process control and ensure that optics and delivery systems maintain compliance with performance thresholds.
Defense & Aerospace Testing
Defense and aerospace sectors often work with large-aperture laser systems for communication, targeting or lidar. Kalas supports detailed beam quality characterization to ensure systems meet safety, precision and regulatory performance criteria during qualification and field deployment.
Academic & Laser Metrology
Universities and research institutes benefit from Kalas for training, experimentation and optical beam studies. The ability to quantify complex beam characteristics in a single acquisition accelerates research cycles and enhances measurement confidence across experimental setups.
Why Choose United Spectrum Instruments?
United Spectrum Instruments is the authorised distributor of advanced optical metrology solutions, providing expert support for systems such as the Kalas Large Beam Analysis system. With deep photonics knowledge and hands-on experience in wavefront and laser beam diagnostics, we help customers select the right configuration and integrate systems seamlessly into their workflows. Our strong local presence ensures reliable, high-accuracy performance across R&D, manufacturing, and quality control applications.
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Authorised distributor of advanced optical metrology and beam analysis systems
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Proven expertise in wavefront sensing and laser beam diagnostics
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Support for system selection, workflow integration, and performance optimisation
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Local training, technical support, and dependable after-sales service
FAQs
What does Kalas measure?
Kalas simultaneously captures wavefront, intensity, divergence, beam waist and quality factor M² in one shot
Up to what beam diameter can Kalas analyze?
It can characterize beams up to 127 mm (5″) aperture, with larger options available on request.
How accurate are measurements?
Kalas provides high precision with accuracy < 15 nm RMS for wavefront measurements.
What wavelengths are supported?
Typical configurations cover sources at wavelengths such as 405 nm, 530 nm, 780 nm, 940 nm, 1050 nm and 1550 nm, with custom sources available.
Can the system be expanded later?
Yes — its modular design lets users add or change modules to meet evolving measurement needs.
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FAQs
What does Kalas measure?
Kalas simultaneously captures wavefront, intensity, divergence, beam waist and quality factor M² in one shot
Up to what beam diameter can Kalas analyze?
It can characterize beams up to 127 mm (5″) aperture, with larger options available on request.
How accurate are measurements?
Kalas provides high precision with accuracy < 15 nm RMS for wavefront measurements.
What wavelengths are supported?
Typical configurations cover sources at wavelengths such as 405 nm, 530 nm, 780 nm, 940 nm, 1050 nm and 1550 nm, with custom sources available.
Can the system be expanded later?
Yes — its modular design lets users add or change modules to meet evolving measurement needs.
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