The SID4-HR Wavefront Sensor VIS – NIR (400 – 1100 nm) is a high-resolution optical metrology system optimised for visible and near-infrared applications. Powered by Phasics’ patented quadriwave lateral shearing interferometry (QWLSI®) technology, it delivers fast, quantitative phase measurements with unmatched precision. Covering the 400 – 1100 nm spectral range, it is ideal for characterising lasers, optics, and imaging systems. Its compact, robust design integrates seamlessly into laboratory or industrial environments, making it a trusted tool for adaptive optics, microscopy, optical testing, and quality control where precision and repeatability are critical.

QWLSI® Technology

Patented interferometry providing quantitative phase measurements with high accuracy.

VIS – NIR Coverage (400 – 1100 nm)

Optimised for a broad spectral range, covering both visible and near-infrared wavelengths.

High Dynamic Range

Captures strong aberrations and subtle optical phase variations simultaneously.

Fast Acquisition Speed

Supports real-time monitoring of dynamic optical phenomena.

Robust & Compact Design

Lightweight, alignment-free, and easily integrable into diverse setups.

Comprehensive Data Outputs

Generates wavefront maps, MTF, and PSF for detailed optical analysis.

Advantages:

• Provides high-resolution wavefront sensing across the VIS–NIR spectrum

• Accurately characterises both lasers and incoherent light sources

• Enhances optical system performance with real-time feedback

• Compact, plug-and-play design reduces complexity in integration

• Widely used in adaptive optics, microscopy, and laser diagnostics

• Delivers superior reliability for industrial quality assurance testing

• Detects phase errors invisible to conventional interferometers

• Trusted by research labs and industries worldwide for precision optical metrology

Aerospace & Defence

Supports adaptive optics development, laser testing, and optical alignment for mission-critical systems.

Automotive & EV Manufacturing

Validates imaging systems, optical sensors, and laser processing tools.

Medical & Biomedical Research

Optimises microscopy, ophthalmology systems, and biophotonics instrumentation.

Semiconductor & Photonics

Ensures accuracy in photonic device testing, laser beam shaping, and lithography optics.

Research & Development Centres

Delivers advanced optical metrology tools for universities and scientific institutions.

Laser Manufacturing & Integration

Provides beam characterisation and optical diagnostics for laser production and system integration.

The SID4-HR Wavefront Sensor VIS – NIR redefines precision metrology, offering unmatched measurement accuracy and adaptability across research and industrial applications.

United Spectrum Instruments is the authorised distributor of SID4-HR Wavefront Sensors in India, providing world-class solutions for optical metrology.

• Genuine Phasics SID4-HR VIS – NIR systems with full manufacturer warranty

• Expert consultation for lasers, photonics, biomedical, and semiconductor applications

• Pan-India installation, training, and after-sales service

• Seamless integration support for laboratories, R&D centres, and industrial setups

• Competitive pricing with reliable customer support

By partnering with United Spectrum Instruments, Indian researchers and industries gain access to state-of-the-art wavefront sensing technologies that ensure precision, compliance, and innovation.