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Quantum Technologies

Partner with G&H to power the next generation of quantum breakthroughs.

Conceptual visualization of a glowing blue trapped-ion qubit suspended within an electromagnetic ion trap, representing precision control technologies used in quantum systems.

Advancing Quantum Applications with G&H AO Technology

G&H is at the forefront of quantum innovation, providing advanced acousto-optic (AO) solutions that drive the latest generation of quantum applications. Our high-performance AO devices enable precise light interactions with cold atoms and ions, essential for quantum computing, quantum communication, and quantum sensing applications.

We offer the industry’s most extensive range of UV, visible, and NIR AO solutions tailored for quantum applications:

Acousto-Optic Deflectors

  • Precise manipulation and positioning of cold atoms and ions
  • Ultra-fast switching and routing of optical signals
  • High-speed addressing of individual or multiple qubits, enabling beam multiplexing

Acousto-Optic Modulators

  • Precise light frequency shifting for atom cooling and trapping
  • Optimized photon-qubit interaction for enhanced quantum processing

Acousto-Optic Multichannel Modulators

  • Fast, parallel addressing of qubits for scalable quantum architectures
Browse our recommended AO products for quantum applications.
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Tray of gold fibre-optic G&H Fiber-Q® modules with connectorised leads and coiled white fibres arranged for inspection or testing.

Advancing Quantum Sensing with G&H FO Technology

G&H is leading the way in quantum innovation with advanced fiber optic solutions that empower the next generation of quantum technologies. Our high-performance Fiber-Q® acousto-optic modulators and Visible Wavelength PM Couplers provide precise control over laser output and ensure exceptional reliability in quantum computing, quantum communication, and quantum sensing applications.

Fiber optic solutions enable quantum researchers and engineers to precisely modulate lasers tailored for quantum applications:

Fiber-Coupled Acousto-Optic Modulators

  • High extinction ratio for superior optical signal clarity
  • Low insertion loss to maximize optical efficiency
  • Stable performance in both polarization-maintaining (PM) and non-PM formats
  • Modulation frequencies up to 80 MHz for visible and infrared wavelengths
  • Rugged hermetic design for long-term reliability and seamless integration into all-fiber and OEM systems

Visible Wavelength PM Couplers

  • High polarization extinction ratio
  • Ultra-low excess loss and high power handling
  • 450nm to 700nm available
  • Slow axis operation as standard, fast and dual axis available
Synchrotron Mirrors - Polished, elongated rectangular mirror with angled edges, displayed on a white surface, labeled “Made in the USA” with an American flag badge.

Supermirrors for Superposition

In quantum optics, photons are not just particles of light – they are carriers of information. From entangled photon pairs and quantum interference to optical atomic clocks and high-finesse cavities, these experiments hinge on precise, low-loss control of light. At the heart of this control? Research-grade mirror substrates.

G&H manufactures research-grade superpolished mirror substrates designed for high-performance quantum optics systems:

  • Ultra-low surface roughness (< 1 Å RMS) to minimize scatter and maintain coherence
  • Flat and concave geometries for interferometry, cavity QED, and laser stabilization
  • Substrates in fused silica, silicon, and Zerodur®—each optimized for thermal, mechanical, and optical stability
  • Verified with ZygoNexView NX2 interferometry and cavity ring-down spectroscopy (CRDS) for finesse validation
Scientists working around a neutral atom quantum research platform with laser beams, optical components and a central vacuum chamber for quantum physics experimentation.

Quantum Applications

G&H’s precision optic and photonic components are enabling breakthroughs across various quantum domains, including:

  • Quantum communication: enabling secure transmission of quantum information
  • Quantum sensors: improving precision measurements with advanced components
  • Quantum device software design: supporting robust quantum hardware-software integration
  • Vapour cells for quantum standards: advancing quantum metrology and precision timekeeping
  • Quantum computing: enhancing qubit control and quantum gate operations
Acousto-optic device manufacturing - Quantum technologies, A gloved technician holds a precision-engineered scientific device featuring a coiled red wire, metallic casing, and reflective components. The device appears to be part of an advanced optical or quantum system. The background is softly blurred, drawing focus to the intricate detail and craftsmanship of the component

Why Choose G&H for Quantum Technology?

  • Proven expertise: decades of experience in optics technology and photonics innovation
  • Broad wavelength coverage: industry-leading portfolio spanning UV, visible, and NIR ranges
  • Custom solutions: tailored designs to meet the unique demands of quantum applications
Contact us today to explore our optic and photonic solutions for quantum applications.
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Conceptual visualisation of a laser beam interacting with trapped atoms inside a vacuum chamber, representing precision photonic control used in quantum research and technologies.

G&H Quantum News & Articles

G&H continues to advance the optical and photonic technologies enabling next-generation quantum systems. Explore some of our latest insights and developments:

Scaling quantum systems with precision beam control

In "Precision at scale: How acousto-optic devices are pushing quantum computing past the 1,000-qubit barrier," our team examines the optical challenges that emerge as quantum architectures move from hundreds to thousands of qubits. The article highlights how acousto-optic deflectors (AODs), modulators (AOMs), and multichannel solutions (AOMCs) enable fast, wide-field, electronically controlled beam steering - positioning acousto-optics as critical infrastructure for scalable quantum computing.

Independent validation in record-scale quantum systems

G&H acousto-optic deflectors (AODF 4085) have been referenced in peer-reviewed Nature papers demonstrating neutral-atom quantum systems operating at 3,000 and 6,100 qubits. These studies underscore the role of high-performance beam steering in enabling atom transport, array reconfiguration, and coherence preservation at scale - highlighting the transition of optical subsystems from bespoke components to robust, manufacturable platforms.

Ruggedized photonics for quantum and beyond

Our Fiber-Q® fiber-coupled acousto-optic modulators (FCAOMs) combine environmental robustness with the precision required for quantum and advanced laser systems. Recognized with both the Queen's Award for Enterprise (Innovation) and the Institute of Physics Award for Innovation, Fiber-Q® reflects our approach to delivering high-performance solutions in demanding applications.

Supporting national quantum initiatives

G&H continues to contribute to government-supported quantum programs including World Quantum Day, UN International Year of Quantum Science and Technology, and Quantum Technologies Challenge. We apply our expertise in photonic design and manufacturing to help accelerate the development and deployment of quantum technologies.

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Exploring G&H Quantum Technologies Capabilities

Watch Polaris School of Quantum™ discuss G&H’s quantum technologies capabilities, including the photonics expertise, precision optical systems and advanced manufacturing support helping enable next-generation quantum applications.

Photonic Solutions for Quantum Applications