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. 

G&H is recognized as a leading provider of advanced optics, fiber optics, acousto-optics, and electro-optics for demanding applications in industrial lasers, semiconductor equipment, fiber-optic subsea networks, and optical sensing and metrology.

What should you consider when specifying components for an optically-based sensing subsystem? What are the challenges in designing these into a subsystem?

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.

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.