What is AOC Cable
Sep 04, 2025| Active Optical Cable Solutions
In the rapidly evolving landscape of modern data center architecture, the demand for high-bandwidth, low-latency interconnect solutions has never been more critical. Our comprehensive portfolio of Active Optical Cable (AOC) solutions represents the pinnacle of optical interconnect technology.
Delivering unparalleled performance across multiple speed grades from 10G to 200G, these meticulously engineered AOC cable systems combine cutting-edge optoelectronic integration with superior signal integrity characteristics, establishing new benchmarks for data center efficiency and scalability.
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10G to 200G Speed Grades
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Up to 100m Transmission
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BER Below 10-12
Technical Architecture & Design Philosophy
Our AOC solutions leverage advanced optical technology and sophisticated signal processing to deliver superior performance in data center environments.
Fundamental AOC Technology Principles
Our AOC cable solutions leverage advanced vertical-cavity surface-emitting laser (VCSEL) technology paired with highly sensitive photodiode arrays to achieve exceptional signal transmission characteristics.
Unlike traditional direct-attach copper cables (DACs), our AOC implementations utilize multimode fiber optic cores encapsulated within lightweight, flexible cable assemblies.
This fundamental architectural approach enables transmission distances up to 100 meters while maintaining bit error rates (BER) below 10-12, a critical requirement for mission-critical data center applications.
Integrated Transceiver Technology
The integrated transceiver modules within each AOC cable assembly incorporate sophisticated digital signal processing (DSP) engines that perform real-time equalization, clock and data recovery (CDR), and forward error correction (FEC) where applicable.
These active components are precisely calibrated during manufacturing to ensure optimal performance across the entire operating temperature range of 0°C to 70°C, with some specialized variants supporting extended industrial temperature ranges.
AOC Technical Architecture Diagram
VCSEL Technology
Advanced vertical-cavity surface-emitting lasers for efficient optical transmission
Photodiode Arrays
Highly sensitive receivers for accurate optical signal detection
DSP Engines
Real-time signal processing for optimal data integrity
EMI Shielding
Advanced protection against electromagnetic interference
AOC Product Portfolio
Our comprehensive range of Active Optical Cable solutions delivers exceptional performance across multiple speed grades to meet diverse data center requirements.
10G SFP+ AOC Implementation
Our 10G SFP+ AOC cable solutions represent the foundation of modern data center connectivity, providing reliable 10.3125 Gbps data transmission for top-of-rack (ToR) switching applications.
These cables implement the SFF-8431 and IEEE 802.3ae specifications, ensuring complete compatibility with industry-standard networking equipment. The optical engine utilizes 850nm VCSEL technology optimized for OM3/OM4 multimode fiber transmission, achieving typical power consumption below 1W per end while maintaining exceptional signal quality.
The mechanical design of our 10G SFP+ AOC incorporates enhanced electromagnetic interference (EMI) shielding through a combination of die-cast zinc alloy housings and integrated gasket systems. This robust construction ensures compliance with FCC Class A and CISPR 32 emissions standards, critical for deployment in dense computing environments where electromagnetic compatibility is paramount.
Compliant with SFF-8431 & IEEE 802.3ae
Optimized for OM3/OM4 Fiber
850nm VCSEL Technology
Advanced EMI Shielding
25G SFP28 AOC Technology Advancement
Building upon the proven SFP+ form factor, our 25G SFP28 AOC cable products deliver 25.78125 Gbps throughput to support next-generation server and storage interconnects.
These cables implement advanced pre-emphasis and post-equalization algorithms within the integrated ASIC controllers, compensating for channel impairments and enabling reliable transmission over extended distances.
The optical subsystem in our 25G AOC cable assemblies employs enhanced VCSEL drivers with programmable modulation current and bias settings, allowing for fine-tuning of the extinction ratio and optical modulation amplitude (OMA) parameters. This level of control ensures optimal performance across varying environmental conditions and cable lengths, from short 3-meter patches to extended 100-meter runs in large-scale data center deployments.
Advanced Equalization Algorithms
Adjustable Extinction Ratio
Programmable VCSEL Drivers
Optimized for Data Center Environments
40G QSFP+ AOC Multi-Lane Architecture
Our 40G QSFP+ AOC solutions implement a sophisticated four-lane optical architecture, with each lane operating at 10.3125 Gbps to achieve an aggregate throughput of 41.25 Gbps.
The QSFP+ form factor AOC cable integrates four independent VCSEL-photodiode pairs, managed by a unified microcontroller that handles lane initialization, monitoring, and diagnostic functions through the two-wire serial interface defined in SFF-8436.
The mechanical design of these 40G AOC cable assemblies incorporates advanced strain relief mechanisms and bend radius limiters to protect the delicate fiber optic elements while maintaining the flexibility required for high-density cable management scenarios. The pull-tab release mechanism is engineered to withstand over 10,000 insertion cycles, ensuring long-term reliability in production environments.
Four Independent Optical Lanes
Advanced Strain Relief
Unified Microcontroller Management
10,000+ Insertion Cycles
40G QSFP+ to 4x10G SFP+ Breakout Configuration
Our innovative 40G QSFP+ to 4x10G SFP+ breakout AOC cable solutions address the critical need for port multiplication in spine-leaf network architectures.
These cables implement sophisticated lane mapping and signal routing within the QSFP+ connector assembly, distributing the four 10G lanes to individual SFP+ transceivers through precision-aligned fiber ribbons.
The breakout AOC cable design incorporates intelligent power management circuitry that dynamically adjusts the power delivery to each SFP+ module based on link status and traffic patterns. This optimization reduces overall system power consumption by up to 30% compared to traditional discrete transceiver implementations, while maintaining full compliance with MSA specifications for both QSFP+ and SFP+ interfaces.
Precision Lane Mapping
Compliant with Both MSA Specs
Intelligent Power Management
Optimized for Spine-Leaf Architectures
100G QSFP28 AOC Performance Optimization
Our 100G QSFP28 AOC cable portfolio represents a significant leap in interconnect performance, delivering 103.125 Gbps aggregate bandwidth through four 25.78125 Gbps NRZ modulated lanes.
These cables implement advanced Reed-Solomon FEC (RS-FEC) capabilities as defined in IEEE 802.3bj, enabling operation over longer distances and through higher-loss channels while maintaining the stringent BER requirements of modern data center applications.
The thermal management system within our 100G AOC cable assemblies utilizes advanced heat spreading techniques, including integrated vapor chambers and high-conductivity thermal interface materials. This sophisticated thermal design maintains junction temperatures well below maximum ratings even under full traffic load conditions, ensuring consistent performance and extended operational lifetime.
Advanced RS-FEC Capabilities
Integrated Vapor Chambers
Enhanced Thermal Management
High-Conductivity Materials
100G QSFP28 to 4x25G SFP28 Fanout Architecture
The 100G QSFP28 to 4x25G SFP28 breakout AOC cable configuration enables flexible deployment scenarios where high-bandwidth spine connections must be distributed to multiple leaf switches or server nodes.
Our implementation incorporates advanced retiming and signal conditioning circuits at each SFP28 endpoint, ensuring that signal integrity is maintained despite the asymmetric nature of the fanout topology.
These specialized AOC cable assemblies implement sophisticated lane-level diagnostics and monitoring capabilities, providing real-time visibility into optical power levels, temperature, and voltage parameters for each individual 25G channel. This granular telemetry data enables proactive maintenance strategies and rapid troubleshooting in complex network deployments.
Advanced Retiming Circuits
Lane-Level Diagnostics
Per-Channel Signal Conditioning
Real-time Telemetry Data
200G QSFP56 AOC Next-Generation Technology
Our 200GBASE QSFP56 AOC cable solutions push the boundaries of optical interconnect technology, delivering 212.5 Gbps throughput through four 53.125 Gbps PAM4 modulated lanes.
The implementation of PAM4 signaling represents a fundamental shift in modulation technology, encoding two bits per symbol to effectively double the data rate while maintaining similar baud rates to NRZ-based systems.
The PAM4 optical engines within our 200G AOC cable assemblies incorporate sophisticated digital signal processing capabilities, including maximum likelihood sequence detection (MLSD), decision feedback equalization (DFE), and advanced FEC algorithms. These technologies work in concert to overcome the inherent signal-to-noise ratio challenges of multi-level modulation, ensuring reliable operation in demanding data center environments.
PAM4 Modulation Technology
Advanced FEC Algorithms
MLSD & DFE Signal Processing
QSFP56 MSA Compliant
Mellanox 200G HDR QSFP56 InfiniBand Specialization
Our Mellanox-compatible 200G HDR QSFP56 AOC cable products are specifically optimized for InfiniBand HDR deployments in high-performance computing (HPC) and artificial intelligence (AI) workloads.
These cables implement the precise timing and latency specifications required for InfiniBand's credit-based flow control mechanisms, ensuring optimal performance in RDMA over Converged Ethernet (RoCE) and native InfiniBand fabrics.
The design of these specialized AOC cable assemblies includes enhanced clock recovery circuits with ultra-low phase noise characteristics, critical for maintaining the tight synchronization requirements of InfiniBand protocols. Additionally, the integrated microcontrollers support InfiniBand-specific management protocols, enabling seamless integration with subnet managers and fabric diagnostic tools.
InfiniBand HDR Compliant
Ultra-Low Phase Noise
Credit-Based Flow Control
RDMA & RoCE Support
Manufacturing Excellence & Quality Assurance
Our rigorous manufacturing processes and quality control protocols ensure exceptional reliability and performance in every AOC cable we produce.
Advanced Manufacturing Processes
Our AOC cable manufacturing processes incorporate industry-leading automation and precision assembly techniques. Each optical subassembly undergoes comprehensive testing, including time-domain reflectometry (TDR) analysis, eye diagram validation, and stressed receiver sensitivity measurements.
The automated optical alignment systems achieve sub-micron positioning accuracy, ensuring consistent coupling efficiency and minimal insertion loss variation across production batches.
Comprehensive Quality Assurance
The quality assurance protocol for our AOC cable products includes extensive environmental stress screening, with each unit subjected to temperature cycling, humidity exposure, and mechanical shock/vibration testing in accordance with Telcordia GR-468-CORE and IEC standards.
This rigorous validation ensures that every AOC cable delivered meets or exceeds the reliability requirements of tier-one data center operators.
Testing & Validation Process
Component Inspection
100% incoming material inspection for all optical and electrical components, ensuring compliance with strict specification requirements.
Precision Assembly
Automated assembly processes with sub-micron alignment accuracy, ensuring optimal optical coupling efficiency and performance consistency.
Electrical Testing
Comprehensive electrical performance verification including insertion loss, return loss, crosstalk, and impedance testing across operating frequencies.
Optical Characterization
Detailed optical performance analysis including power output, extinction ratio, wavelength verification, and BER testing under various conditions.
Environmental Stress Screening
Temperature cycling (-40°C to +85°C), humidity testing (85% RH), and mechanical stress testing to ensure reliability in extreme conditions.
Final Validation & Certification
End-to-end system validation, compliance testing against industry standards, and final quality audit before product certification and release.
Application Scenarios & Deployment Considerations
Our versatile AOC solutions are engineered to excel across diverse data center architectures and deployment scenarios.
Hyperscale Data Centers
In hyperscale environments, our high-speed AOC solutions facilitate the creation of high-radix switching fabrics with minimal cabling complexity, reducing both capital and operational expenditures. The lightweight design simplifies cable management in densely packed racks.
Edge Computing
For edge computing deployments, where space and power constraints are paramount, our AOC cable products offer significant advantages over traditional optical transceivers. The integrated design eliminates the need for separate fiber patch cables.
High-Performance Computing
In HPC environments requiring low-latency interconnects, our AOC solutions deliver the performance required for tightly coupled computing clusters. The consistent signal integrity ensures reliable operation of parallel computing workloads.
Data Center Architecture Deployment
Deployment Advantages
Reduced Power Consumption
Integrated design reduces overall power requirements by up to 30% compared to discrete transceiver solutions, lowering operational costs and cooling requirements.
Lower Latency
Optimized signal path and integrated design minimize latency compared to traditional transceiver and fiber jumper combinations, improving application performance.
Simplified Cabling
All-in-one design eliminates the need for separate transceivers and fiber jumpers, reducing cable management complexity in high-density environments.
Lower Total Cost
Combined hardware, installation, and operational savings result in a significantly lower total cost of ownership compared to traditional interconnect solutions.
Future Technology Roadmap
As data center bandwidth requirements continue to escalate, our AOC technology roadmap extends to even higher performance solutions.
As data center bandwidth requirements continue to escalate, driven by artificial intelligence, machine learning, and distributed computing workloads, our AOC cable technology roadmap extends to 400G and 800G implementations. These next-generation solutions will leverage advanced modulation schemes such as PAM6 and PAM8, combined with coherent detection techniques adapted from long-haul optical systems.
The evolution of our AOC cable portfolio will also encompass integration with emerging technologies such as silicon photonics and co-packaged optics (CPO). These advancements promise to further reduce power consumption and latency while enabling unprecedented port densities in next-generation switching platforms.
Technology Evolution Path
10G-200G AOC
NRZ & PAM4 Modulation
SFP+, SFP28, QSFP+
QSFP28, QSFP56 Form Factors
Up to 100m Reach
400G AOC
Advanced PAM4
QSFP-DD & OSFP
Enhanced DSP
800G AOC
PAM6/PAM8 Modulation
Coherent Detection
Silicon Photonics
1.6T+ AOC
Co-Packaged Optics
AI-Optimized Designs
Ultra-Low Latency
Our comprehensive AOC cable portfolio represents the culmination of extensive research and development in optical interconnect technology. From the foundational 10G SFP+ to the cutting-edge 200G QSFP56 solutions, each product embodies our commitment to delivering superior performance, reliability, and value to data center operators worldwide.
As the industry continues to evolve toward higher speeds and greater efficiency, our AOC cable technology will remain at the forefront, enabling the digital infrastructure that powers our connected world.
The strategic deployment of these advanced AOC cable solutions enables organizations to build scalable, efficient, and future-ready data center infrastructure. With proven compatibility across major equipment vendors and comprehensive support for industry-standard protocols, our AOC portfolio provides the flexibility and performance required to meet the demanding requirements of modern cloud computing, enterprise IT, and high-performance computing applications.