Target designation and laser rangefinding systems are critical to modern defence platforms, enabling accurate target acquisition and ranging in environments where milliseconds and metres matter. These systems must deliver consistent optical performance under extreme temperature ranges, shock, vibration, and prolonged operational lifetimes, often exceeding decades of in-service use.

In addition to uncompromising accuracy, modern rangefinding and designation platforms face increasing pressure to reduce size, weight, and power (SWaP) while maintaining reliability and manufacturability at scale.

G&H supports target designation and laser rangefinding applications through the design and manufacture of optical components, opto-mechanical assemblies, and integrated photonic subsystems engineered for harsh defence environments.

A key challenge in these systems is maintaining optical alignment and performance across wide temperature ranges while withstanding sustained shock and vibration. G&H applies established photonic packaging techniques, precision alignment methods, and rigorous process control to ensure stable operation throughout the system lifetime.

G&H’s capabilities in high-reliability photonic manufacturing have been applied in laser rangefinder programmes for defence sensor systems developed by Thales. In this application, G&H manufactured compact diode-pumped solid-state laser transmitter hardware to a customer-patented design, supporting reliable operation in harsh environments and long-term in-service use.

The programme has been publicly recognised through an innovation award from the Institute of Physics, and the resulting systems are deployed on armoured vehicle platforms including Boxer and the Challenger 3.

Our expertise in high-reliability photonics manufacturing supports the development of target designation and rangefinding solutions across land, air, and maritime platforms. Leveraging vertical integration across optics, coatings, opto-mechanics, and photonic packaging, we enable scalable production of systems designed for extended service life.

We offer a complete range of related services, including:

• Precision optical coatings for visible, SWIR, and eye-safe infrared wavelengths
• Ruggedised opto-mechanical lens assemblies
• Compact laser transmitter module manufacture
• High-reliability photonic packaging for harsh environments
• Design for manufacturability and long-term reliability

Talk to Our Experts About Target Designation & Rangefinding

As a trusted supplier to leading aerospace and defence programmes, G&H supports the transition of advanced laser and optical technologies into reliable, mission-critical systems.