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Electro-Optical Cables

High-performance cables that carry electrical power and optical signals in harsh environments.

Rochester Cable designs and manufactures electro-optical cables that combine optical fibers and electrical conductors for harsh environments. With more than 80 years of experience in electro-optical cable design, we support high-speed data, real-time video, and control in demanding subsea, defense, and industrial applications.

Instead of an off-the-shelf part-number catalog, we engineer each cable around your application. Explore the typical electro-optical roles and configurations below to see how our designs fit into your system.

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When to choose electro-optical cables

Electro-optical cables make sense when copper alone can’t handle your distance, data rate, or noise environment.

Consider electro-optical designs when:

  • You need high-speed data, real-time video, or dense sensor communication over distance.
  • You want fiber data paths and power/control conductors in a single cable.
  • Electromagnetic interference (EMI) makes copper-only solutions unreliable.
  • Cables must operate in harsh subsea, defense, or industrial environments where reliability is critical.

Performance in harsh environments

Electro-optical projects often combine high data rates, electrical power, and harsh operating conditions. Rochester’s electro-optical designs focus on maintaining signal quality and mechanical performance over the full life of the system.

Power and Data Combined

Electro-optical designs combine optical fibers and electrical conductors in a single construction, carrying power, controls, and high-bandwidth data. 

Signal Integrity Over Distance

Fiber-based data paths that help maintain performance over long runs where copper alone is not practical.

Mechanical Robustness

Designs that account for tension, bending, and handling during installation and operation in subsea, offshore, and field environments.

Made for the Environment

Material and construction options selected for immersion, temperature, and other harsh-environment conditions, depending on the project.
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What we can build in the electro-optical family

Rochester offers a range of electro-optical constructions that can be configured around your system architecture, power needs, and environmental conditions.

Configurable Constructions

Electro-optical cable designs can be configured around the number and type of fibers, electrical conductor sizes, and how much mechanical protection is required.

Power and Control Variants

Options that combine single-mode or multi-mode fibers with conductors sized for power and/or control, aligned with the needs of the connected equipment.

Data-Focused Variants

Designs where high-speed data or video is the main driver, with electrical conductors included primarily for control or low-power functions.

Larger Cable Systems

Electro-optical cores that can be integrated into larger cable systems such as umbilicals, tethers, or other hybrid assemblies when a project calls for a multi-function design.

Not seeing a part number?

You won’t find a full online catalog of electro-optical part numbers here. Many Rochester cables are engineered to order, often combining fibers, electrical conductors, strength members, and armor in a single design.

Share your specifications or a brief description of your application, and our team will recommend a cable structure that fits your needs.

Tell us about your application

Whether you’re planning a new system, updating an existing design, or replacing a legacy electro-optical cable, our team can help. Share your requirements and we’ll turn them into a manufacturable cable design. 

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