Imaging Cameras & Sensors – Wavefront Sensors
High-Resolution Vacuum Compatible Wavefront Sensor
The SID4-HR-V Wavefront Sensor from Phasics represents a benchmark in wavefront metrology, offering high-resolution, real-time, single-shot acquisition capabilities across the visible to near-infrared (400–1000 nm) spectral range. Built on the patented QuadriWave Lateral Shearing Interferometry (QWLSI) technology, it empowers researchers and engineers to visualise, analyse, and optimise complex laser beams and optical systems with nanometric accuracy.
Now available in India through United Spectrum Instruments, the SID4-HR-V is designed for demanding applications in laser beam characterisation, optical alignment, adaptive optics, and quality assurance across scientific, defence, and industrial sectors.
Understanding High-Resolution Vacuum Compatible Wavefront Sensor
The SID4-HR-V Wavefront Sensor is a high-resolution optical metrology solution optimised for the visible spectrum. Based on Phasics’ patented quadriwave lateral shearing interferometry (QWLSI®) technology, it delivers quantitative phase measurements with unmatched precision. Designed to cover 400 – 700 nm wavelengths, it provides exceptional sensitivity for analysing optical aberrations, beam quality, and imaging system performance. With its compact, alignment-free design and robust build, the SID4-HR-V integrates seamlessly into laboratories and industrial setups. It is the ideal choice for microscopy, adaptive optics, laser diagnostics, and optical testing applications requiring high-resolution metrology in the visible domain.
Technical Specifications
| Parameter | Value |
| Spectral Range | 400–1000 nm |
| Sensor Type | QWLSI |
| Wavefront Accuracy | λ/100 RMS |
| Dynamic Range | ±π rad (optionally up to 10π with software) |
| Spatial Resolution | High-resolution CMOS imaging |
| Acquisition | Real-time, single-frame |
| Calibration | Factory-calibrated; no user intervention required |
| Software | Phasics proprietary GUI + SDK |
| Outputs | Wavefront phase, intensity, Zernike polynomials, M², divergence, waist, astigmatism |
| Control | USB / Ethernet interface |
Key Features and Advantages
High-Resolution Visible Range Metrology
Optimised for the 400 – 700 nm range, providing detailed optical characterisation.
QWLSI® Technology
Patented interferometry ensures accurate, quantitative phase measurements.
Superior Spatial Resolution
Captures fine aberrations and subtle optical phase variations.
Fast Acquisition Speed
Supports real-time monitoring of dynamic optical systems in the visible spectrum.
Compact & Alignment-Free
Simplifies integration into laboratory and industrial optical setups.
Advanced Data Analysis
Provides wavefront, MTF, and PSF maps for comprehensive system evaluation.
Advantages:
Provides unmatched wavefront sensing accuracy in the visible spectrum
Detects subtle aberrations invisible to traditional interferometers
Delivers real-time feedback for microscopy and adaptive optics applications
Compact, plug-and-play design reduces complexity in integration
Widely used in biomedical imaging, laser diagnostics, and optical R&D
Supports quality assurance in industrial optical component testing
Ensures repeatability and compliance in scientific research
Trusted by universities, research labs, and industries worldwide for visible-range optical metrology
Applications Across Industries
Biomedical & Life Sciences
Optimises imaging systems for microscopy, ophthalmology, and biophotonics.
Aerospace & Defence
Supports adaptive optics, optical alignment, and imaging system validation in the visible domain.
Semiconductor & Photonics
Ensures quality assurance for visible laser sources, sensors, and optical devices.
Automotive & EV Manufacturing
Validates optical sensors, lidar calibration, and visible-light imaging systems.
Research & Development Centres
Equips universities and labs with precision metrology tools for optical studies.
Industrial Quality Control
Provides reliable inspection and testing for visible-light optical components.
The SID4-HR-V Wavefront Sensor redefines visible optical metrology with its superior resolution, accuracy, and adaptability for both research and industrial applications.
Why Choose United Spectrum Instruments?
United Spectrum Instruments is the authorised distributor of SID4-HR-V Wavefront Sensors in India, offering expert solutions in visible-range optical metrology.
Genuine Phasics SID4-HR-V systems with full manufacturer warranty
Expertise across biomedical, semiconductor, defence, and photonics applications
Pan-India training, installation, and after-sales service
Application-specific consultation for research and industrial customers
Competitive pricing backed by dependable customer care
With deep expertise in photonics and optical instrumentation, United Spectrum Instruments ensures Indian industries and research institutes gain access to world-class visible-range wavefront sensing solutions for innovation, compliance, and precision.
FAQs
What laser sources can I use with SID4-HR-V?
The sensor is compatible with continuous-wave and pulsed lasers in the 400–1000 nm range, including diode, Ti:Sapphire, and Nd:YAG sources.
Is it suitable for use with adaptive optics systems?
Yes. The SID4-HR-V integrates smoothly with AO systems and provides feedback for real-time correction via deformable mirrors.
Does it support large wavefront errors or high-aberration systems?
Absolutely. With ±π rad dynamic range (expandable up to 10π), it can handle strong aberrations and phase discontinuities with precision.
How easy is it to integrate into my existing setup?
It comes with a full SDK and mechanical adapters for rapid integration into benches, QA lines, or R&D equipment.
Is there local support in India for installation and training?
Yes. United Spectrum Instruments provides on-site support, technical training, and long-term service packages.
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FAQs
What laser sources can I use with SID4-HR-V?
The sensor is compatible with continuous-wave and pulsed lasers in the 400–1000 nm range, including diode, Ti:Sapphire, and Nd:YAG sources.
Is it suitable for use with adaptive optics systems?
Yes. The SID4-HR-V integrates smoothly with AO systems and provides feedback for real-time correction via deformable mirrors.
Does it support large wavefront errors or high-aberration systems?
Absolutely. With ±π rad dynamic range (expandable up to 10π), it can handle strong aberrations and phase discontinuities with precision.
How easy is it to integrate into my existing setup?
It comes with a full SDK and mechanical adapters for rapid integration into benches, QA lines, or R&D equipment.
Is there local support in India for installation and training?
Yes. United Spectrum Instruments provides on-site support, technical training, and long-term service packages.

