ABOUT US

G&H has world class photonic technologies and capabilities. Dedicated to delivering engineering, design and manufacturing solutions to customers across the globe, our core capabilities span five key technologies: acousto-optics, electro-optics, fiber optics, precision optics and optical systems.

From our sites around the world, in the US, UK, and Far East, we combine high levels of innovation with robust new product development to push the performance of photonics and commercialize new products, side by side with our customers.

G&H technology is integral to the reliability and performance of systems which are deployed in the deepest oceans and orbits in space.  For more than 70 years, we have supplied critical components and subsystems for demanding applications in industry and telecoms, aerospace and defense and life sciences.

Through innovation, next generation solutions and global connectivity, we are changing the world with photonics.

AEROSPACE AND DEFENCE

Supplying mission-critical technology for laser, sensing, and imaging applications under and at sea, on land, in the air, and in space. Our optical systems, components and assemblies are used in a broad range of offensive and defensive applications.

INDUSTRIAL AND TELECOM

From laser pulse control for materials processing, to sensing and undersea communications, we have a reputation for producing photonics components and assemblies of the highest specification and quality.

LIFE SCIENCES AND BIOPHOTONICS

Medical systems and instrumentation OEMs rely on us as a vertically integrated one stop resource for components, systems and assemblies. We provide solutions for medical imaging, surgical systems, critical care and laboratory applications.

HOT PRODUCTS

G&H, a leading crystal grower with decades of electro-optic device design experience, manufactures a comprehensive range of Pockels cells for applications in wavelengths from the UV to the IR.

Applied in many fields, including avionic and space communications, biomedical instrumentation, fiber laser systems, industrial micromachining, interferometry, lidar, medical diagnostics, optical coherence tomography (OCT), sensing, and telecommunications, G&H's fused fiber components play a vital role in aligning and marrying individual cable fibers.

G&H Fused Fiber Optic Components feature a range that has been expanded to include the 2 µm operating window. With multiple housing and pigtail options, these products are able to be used for many different applications. 

G&H offers a variety of Housings, Connectors, And Patchcords, differentiated by housing type and pigtail. G&H can provide its components and modules terminated with a wide variety of connectors.

Applied in many fields, including avionic and space communications, biomedical instrumentation, fiber laser systems, industrial micromachining, interferometry, LIDAR, medical diagnostics, optical coherence tomography (OCT), sensing, and telecommunications, G&H's Fiber Lasers can be used to perform cutting, marking, welding, cleaning, texturing, drilling and more. 

Applied in many fields, including avionic and space communications, biomedical instrumentation, fiber laser systems, industrial micromachining, interferometry, LIDAR, medical diagnostics, optical coherence tomography (OCT), sensing, and telecommunications, G&H's Polarization-Maintaining Couplers provides optical signal combining or splitting over a wide bandwidth while preserving polarization with high extinction ratio in a rugged package.

Applied in many fields, including avionic and space communications, biomedical instrumentation, fiber laser systems, industrial micromachining, interferometry, LIDAR, medical diagnostics, optical coherence tomography (OCT), sensing, and telecommunications, G&H's Single-Mode Couplers play a vital role in aligning and marrying individual cable fibers.

G&H offers a range of distributed feedback lasers (DFB) that provide smooth, tunable wavelength control and the narrow spectral width required for precise fiber optics. Applications for these products include spectroscopy and fiber optic communications.

G&H designs and manufactures custom modules including fiber assemblies of passive and/or active optical components. Customers sourcing fiber optic assemblies are looking to reduce time to market and development costs. 

G&H NightCrawlIR™ series utilizes unique aperture specific foreoptics and a modular base to maximize performance, while staying budget-friendly. These lenses are purpose-built from the ground up for the demands of high resolution applications.

CONTACT INFORMATION

G&H

Dowlish Ford

Ilminster, TA19 0PF

Phone: +44 1460 256440

FEATURED VIDEOS

  • What should you consider when specifying components for an optically-based sensing subsystem? What are the challenges in designing these into a subsystem? Learn about developing subsystems and specifying components for manufacturing and assembly in this webinar hosted by G&H.

  • G&H leverages their expertise in component, subsystem and system engineering to give value to its customers. This webinar looks at what’s involved in designing an optical coherence tomography (OCT) system for manufacture and assembly (DFMA). 

  • G&H bases their core technologies around acousto-optics, electro-optics, fiber optics, and precision optics. Components, subsystems and systems products range from commercial off the shelf, through pre-engineered designs, contract manufacturing to fully customized. 

  • G&H NightCrawlIR™ series utilizes unique aperture specific foreoptics and a modular base to maximize performance, while staying budget-friendly. These lenses are purpose-built from the ground up for the demands of high resolution applications.

  • G&H is recognized for the diversity of their acousto-optic, electro-optic, crystal-optic, fiber optic, and precision optic products. G&H's engineers bring decades of experience, working closely with program managers at prime aerospace and defense suppliers. 

FEATURED NEWS

  • On 16 May 2021 the world will celebrate the fourth annual International Day of Light. As a leading photonics company, G&H are proud to support and celebrate this global UNESCO initiative. The International Day of Light provides a platform for the continued appreciation of light and the role it plays in science, culture and art, education and sustainable development, and in fields as diverse as medicine, communications and energy. 

  • Our vision is to change the world with photonics. As a leading photonics company we are doing precisely that, as NASA utilizes G&H’s innovative acousto-optic tunable filter (AOTF) as part of the Perseverance Rover’s SuperCam. Launched eight months ago, the Mars 2020 Perseverance Rover has travelled 203 days and 127 million miles through space to finally land last night at 20:55 GMT on Jezero Crater near the planet’s equator – the most difficult landing site on the red planet ever attempted.

  • G&H announces that it has acquired US fiber optic components and sub systems specialist Gould Fiber Optics. This acquisition strengthens G&H’s position as the world leader in fused fiber optic technology and provides enhanced access to strategic US Aerospace and Defence customers.

  • G&H announces G&H, Ilminster has undergone a successful transition assessment to AS9100:2016 performed by BSi and equivalent too AS9100 Rev D.

  • G&H announces the FP7 project MINERVA has now been completed. MINERVA (MId- to NEaR infrared spectroscopy for improVed medical diAgnostics) was funded by the European Commission through its Seventh Framework Programme (FP7). Co-ordinated by G&H, the project brought together thirteen partners from across Europe with the common objective of developing mid-infrared (mid-IR) technology based on supercontinuum sources (SCSs) to improve the early diagnosis of cancer.

  • G&H PLC recently announced the acquisition of StingRay Optics LLC. StingRay are a specialist designer and manufacturer of high performance optical and opto-mechanical sub-systems for demanding defense and commercial applications. The acquisition of StingRay is aligned with G&H's strategic objectives of moving up the value chain and further diversification into the aerospace & defense sector.

FEATURED ARTICLES

  • Lidar (light detection and ranging) is pushing the boundaries of how we analyze, interpret, and understand both earth and space environments from afar – and G&H’s lidar solutions already underpin many international remote sensing projects and programs. 

  • In recognition of International Women in Engineering Day on 23rd June 2021, women in engineering and related disciplines from across G&H came together virtually to discuss what it means to be a woman in engineering in 2021.

  • Photonics Emerges Stronger from the Pandemic, Proving its Robustness and Resilience Against Market Disruptions. In this article G&H explores the demand for photonics-based solutions across sectors, applications and pain-points, and set out industry needs for photonic components to address the challenges customers face today.

  • Space is perhaps no longer ‘the final frontier’, but as an operating environment for optical components it remains in many ways the ultimate test of the technology’s reliability, resilience, and precision – far more so, typically, than with terrestrial applications.

  • G&H's A&D Business Development Manager, Trevor Cook discusses approaches to high-performance SWIR lens designs, by explaining technical challenges in more detail, addressing effective solutions.

  • Acousto-optic tunable filters (AOTFs) consist of solid-state technology partnered with high speeds and random-access tuning. G&H is adept at supplying optical components and sub-systems for demanding applications, including acousto-optic devices for operation in a space environment. 

  • OCT systems manufacturers need to deliver systems capable of higher resolution imaging, faster and at lower costs than ever before, posing a challenge. To achieve fit for purpose components and systems that are to specification, budget and timeline at scale, whilst reducing costs over the product lifetime, the challenge requires efficient and effective system design.

  • Using photonics technologies to establish communications in air-to-ground, air-to-air, and air-to-space fields offers many advantages related to transmission speed, low SWaP systems, spectrum regulations, and immunity to electromagnetic interference.

  • To analyze the specific damage characteristics of high-power laser optics, it is important to understand the laser induced damage threshold (LIDT), an analytical threshold determination method that can reveal damage diagnostics, and its testing provides a lower-cost option for coating development. 

  • When designing micromaterial processing equipment, manufacturers need to consider a complex interplay of factors, such as accurate positioning of lasers for cutting, drilling, scribing, or  marking at the highest rate possible. In many integrated circuits, the required beam accuracies can be staggering. 

  • Optical coherence tomography (OCT) can be used in many medical applications including displaying real-time details of eye diseases, detecting skin cancer, or monitoring heart surgery. The OCT market is set to grow even further over the next few years as the efficiency and effectiveness of imaging improves.

  • This white paper presents and discusses 1.55 μm booster amplifiers and pre-amplifiers that are suitable for satellite to ground, inter-satellite links, and flexible photonic payloads.

  • The broad emission spectrum of thulium fibers, which can extend from 1600 to 2200 nm, makes a thulium fiber laser an excellent choice for building widely tunable fiber lasers. This paper details G&H results testing an all-fiber thulium laser system that can be tuned to any wavelength between 1710 to 2110 nm, without using any moving mechanical parts.

  • The ISLA project was a research and development project with the goal of developing “building block” components of compatible and self-consistent active and passive fibers, fused fiber couplers and combiners, fiber-coupled isolators, modulators and high power pump laser diodes. This project also intended to develop a CW, a pulsed and a short pulse laser demonstration laser for use in applications testing. This paper delivers an overview of the project, the results from G&H work on developing passive components for 2 µm fiber lasers, and the research efforts on different isolator materials with the largest Verdet constants to be used in 2 µm isolators.

  • Increasing use of fiber lasers and fused fiber technology for industrial, medical, and sensing applications has led to the development of fused fiber devices in all-fiber system architectures. This article demonstrates G&H efforts developing single-mode fused couplers in a ZBLAN fiber in the mid-IR range.

  • Fiber lasers operating in the 2 µm region with a large mode area in an “eye safe” region of the spectrum are attractive to many applications such as laser machining and biomedical systems. G&H has made recent developments in acousto-optic modulators and tunable filters that are specifically optimized for fiber systems operating at or around 2 µm. This article discusses the important consideration of the choice of interaction medium, such as acousto-optic devices, especially for the polarization behavior of the device when used in a fiber system.