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Solutions

Fiber Optic Solutions for Quantum Computing

Enabling the next generation of quantum systems

Quantum computing is advancing faster than most industries can keep pace with—and at Impact ES–Ventura, formerly Coastal Connections, we are already inside it. We are proud to be a key fiber-optic technology partner to multiple companies among the world's leading quantum computing developers, making us one of the top specialized fiber-optic suppliers in the United States supporting quantum technology infrastructure.

Our role focuses on designing and manufacturing precision optical fiber assemblies that enable the advanced photonic and cryogenic systems required by today's quantum computing platforms. Every assembly we produce is engineered for extreme precision, reliability, and compatibility with the demanding environments in which quantum hardware operates.

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“We collaborate with multiple companies among the world's leading quantum computing developers, supporting the development of next-generation quantum systems through highly specialized custom fiber-optic solutions.”

Impact ES

    What is quantum computing?

    Quantum computing represents one of the most transformative technological shifts of our time. Unlike classical computers, which process information using bits that represent either 0 or 1, quantum computers operate using qubits, which can exist in multiple states simultaneously through the principles of superposition and entanglement.

    This fundamental difference allows quantum systems to solve certain classes of problems dramatically faster than any classical computing system. Active applications being developed and explored today include:

    • Advanced drug discovery and molecular simulation

    • Cryptography and next-generation cybersecurity

    • Logistics and financial optimization problems

    • Artificial intelligence and machine learning acceleration

    • Development of new materials and energy solutions

    While the technology is still maturing, rapid progress is being made globally. Leading technology companies, well-funded startups, and major research institutions are racing to build scalable, fault-tolerant quantum systems capable of delivering practical advantages over classical computing.

    Where the technology stands today

    The current phase of quantum computing is referred to as the NISQ era (Noisy Intermediate-Scale Quantum), where systems are being developed and tested with tens to hundreds of qubits. Researchers and industry leaders are actively working to improve system stability, scalability, and error correction.

    A critical and often overlooked component of these systems is high-precision optical connectivity. Quantum devices require exacting control, measurement, and communication between the quantum hardware and its supporting classical electronics. Fiber-optic connections carry these signals with the precision, low thermal conductivity, and immunity to electromagnetic interference that quantum systems demand. This is where Impact ES–Ventura' expertise becomes essential.

    Why fiber optics are critical to quantum computing

    • Most superconducting quantum computers operate at temperatures near absolute zero, and as low as 20 millikelvins. Electrical wiring creates thermal load that can compromise qubit coherence. Optical fibers, by contrast, have extremely low thermal conductivity, allowing signals to pass from room-temperature electronics into cryogenic environments without destabilizing the quantum system. The National Institute of Standards and Technology (NIST) has demonstrated that fiber-optic photonic links can meet the control and measurement requirements of superconducting quantum information processing at this scale.

    • In quantum photonic systems, even minute signal loss affects system fidelity and qubit measurement accuracy. Custom fiber assemblies engineered to minimize insertion loss, the reduction in signal power as light passes through the fiber and its connectors, are essential for maintaining the integrity of the optical signals that control and read quantum states.

    • Quantum systems are extraordinarily sensitive to electromagnetic interference. Fiber optic cables carry light, not electrical current, and are therefore completely immune to EMI. This makes them the preferred interconnect technology for quantum hardware environments where electromagnetic noise must be minimized.

    • Beyond supporting superconducting quantum computers, optical fiber plays a central role in photonic quantum computing—an approach that uses photons as qubits and fiber or integrated photonic waveguides as the medium for quantum operations. Impact ES–Ventura has deep expertise in the precision fiber architectures required by these systems.

    Impact ES–Ventura: a key enabler of quantum computing

    At Impact ES–Ventura, we support quantum computing developers with custom fiber-optic assemblies engineered for the extreme precision and reliability that quantum systems demand. Our engineering teams work closely with customers to design optical solutions that address the unique challenges of quantum hardware environments, including:

    • Ultra-low optical loss assemblies for photonic fidelity

    • High-precision fiber alignment for photonic quantum systems

    • Specialized connectors and coatings for cryogenic environments

    • Custom optical architectures tailored to specific quantum platforms

    • Polarization-maintaining (PM) fiber assemblies for interferometric applications

    • Compatibility with advanced photonic integrated circuits and free-space optics

    • Precision polarization extinction ratio (PER) testing across wavelengths

    Through close collaboration with leading quantum technology companies, our engineering teams help develop and refine the optical infrastructure that enables next-generation quantum processors and photonic quantum systems.

    Impact ES–Ventura is one of the top specialized fiber-optic suppliers in the United States supporting quantum technology infrastructure.

    Key specifications for quantum computing fiber optic assemblies

    Parameter

    Impact ES–Ventura Capability

    Fiber types supported

    SM, PM, MM, LMA, Photonic Crystal, Mid-IR

    Connector types

    FC, LC, SC, SMA, E-2000, custom ferrules

    Ferrule sizes

    1.25mm, 1.6mm, 2.0mm, 2.5mm, 3.2mm OD — stainless steel and ceramic

    Cryogenic compatibility

    Assemblies designed for operation from room temperature to millikelvin environments

    Optical loss

    Ultra-low insertion loss; custom architectures minimizing loss at each junction

    PM alignment accuracy

    High-precision stress rod alignment; PER tested at 405, 640, 980, 1310, 1550nm

    Coatings

    Acrylate, high-temp acrylate, silicone, polyimide (including polyimide strip capability)

    End-cap assemblies

    Fiber end-caps installed without degrading optical quality; thousands built annually

    Testing

    Interferometric, PER, beam profile, insertion loss, return loss, thermal cycling -65 to 150°C

    Custom architectures

    Multi-fiber ferrules, multi-core fiber alignment, vacuum feedthroughs, free-space optics

    Frequently asked questions

    • Quantum computing applications require fiber assemblies with ultra-low insertion loss, high-precision fiber alignment, polarization-maintaining capability, and compatibility with cryogenic operating environments. Coatings must withstand thermal cycling, and connectors must be engineered to maintain performance under the mechanical stress of repeated thermal contraction and expansion. Custom architectures are almost always required, and off-the-shelf assemblies rarely meet quantum hardware specifications.

    • Standard commercial fiber optic cables are generally not suitable for quantum computing applications. Quantum hardware requires custom assemblies with controlled optical loss, precise fiber alignment, specialized coatings for cryogenic environments, and connector designs that maintain performance under extreme conditions. Impact ES–Ventura specializes in engineering custom assemblies to meet these exact requirements.

    • Polarization-maintaining (PM) fiber preserves the polarization state of light traveling through it. This is a critical requirement for many quantum optical systems including interferometers, quantum key distribution (QKD) systems, and photonic quantum processors. Impact ES–Ventura has extensive capability in PM fiber termination, splicing, and alignment, including testing polarization extinction ratio (PER) across multiple wavelengths.

    • Impact ES–Ventura is among the top specialized fiber-optic suppliers in the United States supporting quantum technology infrastructure. We currently collaborate with multiple companies among the world's leading quantum computing developers, providing custom precision fiber assemblies for photonic and cryogenic quantum systems.

    • Our engineering teams work directly with quantum hardware developers from early design stages through production. We design and manufacture custom fiber-optic assemblies, provide precision testing and analysis, and collaborate closely on optical architectures tailored to each customer's specific platform requirements. Our work spans photonic quantum computers, superconducting qubit systems, and quantum networking applications.

    Quantum computing applications supported

    Our fiber-optic assemblies support a range of quantum computing platforms and architectures, including:

    • Superconducting qubit systems: photonic links between room-temperature electronics and cryogenic quantum circuits

    • Photonic quantum computers: precision fiber architectures for photon-based qubit systems

    • Trapped ion quantum computers: optical delivery and collection for laser-based qubit control

    • Quantum key distribution (QKD): PM fiber assemblies for secure quantum communication

    • Quantum networking: fiber connections for entanglement distribution and quantum repeater systems

    • Quantum sensing: precision fiber assemblies for atomic clocks, gravimeters, and magnetometers

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    Partner with Impact ES

    As quantum computing continues to evolve, the need for precision photonics, advanced fiber connectivity, and scalable manufacturing will only increase. Impact ES–Ventura is proud to be part of this transformation, working alongside pioneering companies to support the development of the next generation of quantum computing systems.

    Whether you are developing a photonic quantum processor, a superconducting qubit platform, or a quantum networking system, our engineering team is ready to help you design and build the optical infrastructure your system requires.