Featured Articles

31. Approaches To High Performance SWIR Lens Design 3/23/2021

    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.

32. G&H Launches ATOFs Into Space 3/23/2021

    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. 

33. OCT Systems Innovation- Component Specification To Design For Manufacture 3/23/2021

    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.

34. Innovative Design Process Fastracks UAV Laser Comms Development 9/19/2017

    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.

35. Understanding LIDT Laser Optics For High Power Lasers 8/4/2017

    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. 

36. The Evolution Of Ultrafast, Ultra-Precise Beam Steering Techniques For Micro-Material Processing 7/18/2017

    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. 

37. Faster, Smaller Delay Lines Drive OCT Applications Further 5/5/2017

    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.

38. Radiation-Resistant Optical Fiber Amplifiers For Satellite Communications 3/31/2017

    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.

39. Testing All-Fiber Widely Tunable Thulium Lasers 3/31/2017

    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.

40. Project Overview And Passive Component Development: Integrated Disruptive Components For 2µm Fiber Lasers (ISLA) 1/18/2017

    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.