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4-Core Single Mode Underwater Fibre Optic Cable | Deep-Sea ROV

Published on:2026-05-24 Click:18

4-Core Single Mode Underwater Fibre Optic Cable | Deep-Sea ROV

4-core single mode (G.652D) underwater fibre optic cable. PUR jacket, deep-sea rated, for high-bandwidth ROV data links and subsea optical networks.

Product introduction

4-Core Single Mode Underwater Fibre Optic Cable for Deep-Sea Applications

This 4-core single-mode underwater fibre optic cable is designed for demanding subsea optical transmission applications. Using G.652D (OS2) single-mode fibres, it delivers high bandwidth at low attenuation over long cable runs -- ideal for ROV tethers, subsea observatory links, and deep-sea communication networks. The PUR outer jacket provides excellent resistance to seawater, UV, and abrasion.

Parameter Specification
Fibre Count 4 x Single-Mode
Fibre Standard ITU-T G.652D (OS2)
Attenuation ≤0.35 dB/km @1310 nm; ≤0.20 dB/km @1550 nm
Jacket Material Polyurethane (PUR)
Temperature Range -30°C to +80°C
Depth Rating Up to 6,000 m (with armour)
Fibre Protection Loose tube, gel-filled, Kevlar yarn
Min Bend Radius 20x OD

Key Applications

  • ROV fibre optic tether (4-channel data link)
  • Subsea ocean observatory optical backbones
  • Deepwater scientific instrument optical links
  • Offshore oil & gas fibre communications
  • Naval and military UUV optical tethers

Request fibre test reports and custom cable specifications: sales@rovcable.com -- Shanghai Kabel Intelligence Technology Co., Ltd.

Frequently Asked Questions

Is this cable compatible with DWDM systems?

Yes. G.652D single-mode fibre is fully compatible with DWDM (Dense Wavelength Division Multiplexing) systems. Multiple high-capacity channels can be transmitted on a single fibre, making this 4-core cable capable of carrying 40+ DWDM channels per fibre.

Can you add copper conductors to make it a hybrid cable?

Yes. We commonly produce hybrid versions combining 4SM fibres with power conductors (e.g. 2 x 1.5mm2) in a single cable. See our fibre optic hybrid cable range or contact us with your combined requirements.

Applications

  • Underwater cable assemblies for ROV, AUV and subsea vehicle power and signal delivery
  • Subsea sensor and instrument cabling requiring flexible, abrasion-resistant PUR jackets
  • Marine renewable energy cable connections, offshore platform and coastal installations
  • Underwater lighting, camera and video system cable assemblies with connector terminations
  • Custom umbilical cables for oceanographic research and temporary subsea deployments

Customization Options

  • Custom cable lengths from 1m to 1000m+ with specified conductor counts and gauges
  • Direct moulding termination to any ROV Connector series for complete cable assemblies
  • Neutral buoyancy options, Kevlar reinforcement and specialized jacket colors available
  • Certified cable tension, flex and pressure testing with full test documentation
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