OctopuZ

AOH-OCTOPUZ

All-Optical Hydrophone Array System

Advanced underwater acoustic sensing with power-over-fibre technology. No electrical power on the sensing line, No subsea infrastructure — 100km+ range on a single-mode fibre.

AOH-OCTOPUZ System
AMDA Innovation Awards IP25 Finalist AMDA Innovation Awards IP25 Winner

Technology

Product Overview

The AOH-OCTOPUZ is an all-optical underwater hydrophone system developed by PhoenixZ for long-range, high-security and high-fidelity acoustic monitoring. Using a proprietary passive optical transducer, it converts standard high-sensitivity hydrophone signals directly into optical form, enabling transmission over 100 km of optical-fibre without electrical power in the sensing line. This architecture delivers exceptional reliability, immunity to EMI, high security and suitability for permanent subsea deployment.

Product Datasheet

PDF

Optical-Only Signal and Power Delivery Path

No electrical power and no supporting infrastructure along the sensing line. Its fully optical power delivery and signal transmission architecture enables simple deployment, long-distance operation, and maintenance-free performance, significantly reducing system complexity, cost, and failure risk in subsea environments.

100km+ Range

Ultra-long-range operation on a single-mode fibre optic cable. The Remote Terminal Unit (RTU) can be located over 100 kilometres from the sensing point.

High Sensitivity

Sensitivity of -190 dB re 1V/µPa (±3 dB) with 100–120 dB dynamic range and low noise floor. Compact and lightweight — deployable by a two-person team or ROV.

01 Optical-only signal path — zero electromagnetic interference
02 Ultra-long-range operation exceeding 100km on single-mode fibre
03 High sensitivity with low distortion acoustic performance
04 Compact and lightweight — 2-person or ROV deployable
05 Standard Ethernet output for seamless data integration
06 Corrosion-resistant construction for harsh marine environments

Applications

Where AOH-OCTOPUZ Operates

Defence & Security

Seabed surveillance networks, towed sonar arrays, anti-submarine warfare support, and autonomous underwater platform sensing.

  • —Seabed surveillance
  • —Anti-submarine warfare
  • —Autonomous platforms

Oceanography

Marine ecosystem monitoring, ambient noise studies, and seismic event detection with high-fidelity underwater acoustic data capture.

  • —Marine ecosystems
  • —Ambient noise studies
  • —Seismic monitoring

Offshore Energy

Long-range monitoring of pipelines and long-haul fibre-optic cables, subsea assets, and structural integrity in demanding marine conditions.

  • —Pipeline monitoring
  • —Long-haul fibre-optic cables
  • —Structural integrity
  • —Subsea assets

Wet End

Optical Hydrophone

AOH-OCTOPUZ Optical Hydrophone

The AOH-OCTOPUZ hydrophone converts underwater acoustic signals into optical data using a proprietary passive transducer based on liquid crystal technology. Housed in a corrosion-resistant aluminium, acrylic, and stainless steel enclosure, it is compact enough for two-person deployment or ROV installation.

Hydrophone Specifications

Housing
Aluminium / Acrylic / SS
Diameter
⌀100mm
Length (without hydrophone)
200mm
Length (with hydrophone)
600mm
Weight
2kg / Neutral buoyancy
Cable
>100km SM Fibre
Sensitivity
-190 dB re 1V/µPa (±3 dB)
Dynamic Range
100–120 dB
Noise Floor
40–60 dB re 1 µPa²/Hz
Max Acoustic Input
190–200 dB re 1 µPa

RTU Specifications

Power per Channel
12W
Max Channels
8
Connector
2× LC-APC Duplex SM
Connectivity
Wi-Fi + Ethernet
Display
LCD
Data
Real-time webpage + Logging
Power Supply
±12–18V DC / 24V / 240V AC
Form Factor
19" Rackmount 4U
Dimensions
482.6 × 177.8 × 255mm

Dry End

Remote Terminal Unit

The RTU receives optical signals from the hydrophone array and converts them to standard Ethernet output for integration with existing data systems. Housed in a standard 19-inch 4U rackmount chassis, it supports up to 8 channels and can be located over 100km from the sensing point.

Recognition

Exhibitions & Awards

Indo Pacific 2025

Indo Pacific 2025 International Maritime Exposition

The AOH-OCTOPUZ system was showcased at the Indo Pacific 2025, where it won the Emerging Technology Award.

AMDA Innovation Award Finalist AMDA Innovation Award Winner

Our People

The Team

Dr. Zourab Brodzeli

Dr. Zourab Brodzeli

CEO

The founder and CEO of PhoenixZ Pty Ltd, leading the commercialization of advanced photonics and fiber-optic sensing technologies for mining safety, subsea monitoring, and industrial applications. A physicist by training, Dr. Brodzeli has extensive experience in research, engineering, and technology transfer, with a strong focus on turning innovative science into practical, real-world solutions. He drives PhoenixZ's strategic vision, product development, and industry partnerships, working closely with clients and collaborators to deliver robust, intrinsically safe sensing systems that enhance safety, security, and operational performance across critical infrastructure sectors.

Dr Adrian Carter

Dr Adrian Carter

Director & Strategic Technology Advisor

Dr Adrian Carter is an internationally recognised expert in specialty optical fibre technology and the former founder and Chief Technology Officer of Coherent-Nufern. Over a career spanning research, technology development and commercialisation, he has made pioneering contributions to the design, fabrication and application of specialty optical fibres, including fibres for high-power laser and amplifier systems. He has published extensively and holds numerous U.S. patents covering various aspects of optical fibre technology.

Adrian is a Fellow of SPIE, Optica and the Australian Institute of Physics (AIP), reflecting his internationally recognised contribution to photonics and optical-fibre technology. At PhoenixZ, he brings a rare combination of deep technical expertise, experience in taking advanced photonics technologies from research through to commercial products, and first-hand experience in building and growing a technology company. His expertise provides PhoenixZ with strategic guidance across optical and fibre technologies, product development and commercialisation.

Fernan Bautista

Fernan Bautista

Mechanical Engineering and Production

Drives the mechanical development of our devices with a focus on precision and reliable design. Enjoys tackling the unique challenges of hardware built for extreme environments, turning complex technical needs into operational systems that perform across a variety of fields.

George Triantafillou

George Triantafillou

Electronics Engineer

George Triantafillou is an Electronics Engineer specialising in electronic hardware design, PCB development, embedded systems and firmware engineering. He graduated with Honours in Electrical Engineering from the University of Technology Sydney and has successfully developed multiple electronic products that have progressed into commercial production. His experience spans the agriculture, medical and mining sectors, providing him with a strong background in designing reliable, high-performance electronic systems for demanding industrial applications.

George has expertise in analogue and digital electronics, mixed-signal circuit design, PCB layout, embedded firmware development, hardware integration and system testing. He also has expertise in the design of Intrinsically Safe (IS) electronic hardware in accordance with the requirements of IEC 60079-0 and IEC 60079-11, enabling the development of equipment for hazardous industrial environments. His combination of technical expertise, practical engineering experience and commitment to innovation contributes to the development of advanced sensing and monitoring technologies for mining, defence and other industrial applications.

David Elishua

David Elishua

Consultant, Electrical Engineering (IS)

Brings our hardware to life by managing the electronic architecture and embedded systems. Dedicated to creating the smart logic and circuit designs that keep our systems connected and functioning perfectly, even in the most challenging settings.

Michael Raikhman

Michael Raikhman

Consultant, Electronics Engineering

Michael Raikhman is a highly skilled Electronics Engineering Consultant, specialising in system and component level electronics hardware design and development for R&D and manufacturing applications.

Michael is an expert in RF/Microwave, fibre optical and mixed signals schematics design and PCB layout, developing products for Telecommunications, Radio Communications, IoT, industrial and medical applications. He graduated from the Moscow Technical University of Telecommunications and Informatics with an Honours Degree in Broadcasting and Radio Communication Engineering.

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