The LINDEN-SPE-7098-2 High-Strength Buoyant 750 is a rugged buoyant fiber optic cable designed for demanding underwater and marine environments where compact size, high tensile strength, flexibility, and dependable optical transmission are required. It is suitable for subsea systems, ROV tethers, underwater sensors, marine research equipment, defense applications, and other projects where a lightweight but strong optical cable is needed.

This cable is based on Linden Photonics’ strong tether fiber optic cable design. The related LINDEN-SPE-7098 specification is described as an STFOC Non-Kink Buoyant 750 lbs cable, with a compact 3.5 mm cable OD, singlemode fiber, and 750 lbs tensile strength. The specification also lists attenuation values of <0.45 dB/km at 1310 nm and <0.35 dB/km at 1550 nm, with optical propagation loss testing performed on all cables.

The cable is designed for applications where standard fiber optic cables may be too fragile, too heavy, or unsuitable for underwater movement. Its buoyant construction helps reduce drag and handling problems in water, while the high-strength jacket system helps protect the optical fiber from tension, bending, abrasion, and harsh operating conditions.

Key Features

• High-strength buoyant fiber optic cable design
• 750 lbs tensile strength rating
• Compact low-profile cable construction
• Singlemode optical fiber for long-distance data transmission
• Suitable for underwater, subsea, and ROV applications
• Designed for flexibility and non-kink handling
• Lightweight compared with many conventional armored cable options
• Helps reduce cable drag in marine environments
• Strong protective jacket system for demanding field use
• Suitable for custom marine and defense cable assemblies

Product Overview

The LINDEN-SPE-7098-2 High-Strength Buoyant 750 is built for situations where a fiber optic cable must remain strong without becoming bulky or difficult to handle. In subsea applications, cable size and weight can directly affect system performance. A smaller, stronger cable can reduce vehicle drag, improve maneuverability, and make deployment easier.

Linden Photonics describes the LINDEN-SPE-7098 tether as a premium ROV fiber optic cable with a 3.5 mm diameter, tensile strength of more than 350 kg, and density close to seawater. The company also notes that the cable uses STFOC technology at its center.

This makes the cable especially useful for underwater systems that need high-bandwidth communication in a compact tether. The singlemode fiber supports reliable optical signal transmission, while the buoyant structure helps improve cable behavior in the water column.

Technical Highlights