Explore our engineered optical interconnect portfolio designed to scale network performance, minimize physical footprints, and deliver maximum throughput.
Established in 2012 in Hong Kong as a high-tech communication enterprise, Kocent Optec Limited has emerged as one of China's premier fiber optic termination product manufacturers and bespoke solution providers. With over 13 years of production heritage and extensive market penetration, we are deeply committed to designing, engineering, and manufacturing fiber optic connection technologies spanning passive elements to active optical transceivers and cabling assemblies.
By leveraging our specialized experience and state-of-the-art production environments, we unlock critical network value for our global customers. We focus on customer collaboration, defining our relationship as a true value-added partnership in fiber connection environments. Our core capabilities serve as direct operational advantages to our clientele, helping them expand capacity, lower latency, and outperform global competition.
Our commitment to excellence means utilizing mature scientific methods, stringent material screening, and rigorous production workflows. This ensures that 100% of our products undergo detailed visual, physical, and signal-integrity testing before shipment. By doing so, we consistently deliver high-performance, resilient systems to telecom operators and data centers worldwide, keeping them at the cutting edge of technological evolution.
Under the hood of high-frequency signal transmission: Exploring VCSELs, PAM4 modulation, and low-latency physical layer designs.
As AI workloads, LLMs (Large Language Models), and deep learning clusters continue to expand exponentially, traditional Direct Attach Copper (DAC) cables hit physical limitations. Beyond 3 meters, copper suffers from high signal attenuation, cross-talk, and excessive weight. 400G Active Optical Cables (AOCs) solve these pain points by integrating high-speed optoelectronic modules directly with lightweight, flexible optical fibers.
Utilizing PAM4 (Pulse Amplitude Modulation 4-Level) technology, 400G AOCs transmit data over multiple lanes using either QSFP-DD (Quad Small Form-factor Pluggable Double Density) or OSFP form factors. This design compresses network latency, minimizes cable bulk, and improves airflow within dense server racks. By using 8 lanes of 50G or 4 lanes of 100G PAM4, AOCs achieve full 400 Gbps performance with lower power budgets compared to traditional discrete transceiver-patch cord architectures.
Our OEM manufacturing facilities specialize in tuning these optical sub-assemblies (OSAs) to optimize signal integrity. Through careful calibration of internal Digital Signal Processing (DSP) chips and laser drivers, we ensure clean eye diagrams, low Bit Error Rates (BER), and high thermal stability across challenging operational parameters.
QSFP-DD and OSFP configurations are fully supported. We focus on thermal cooling design, keeping power consumption low (typically < 8W per cable end) to reduce total operational costs (OpEx) for hyperscale facilities.
Integrated 850nm VCSEL arrays coupled with premium multimode fiber (OM3/OM4/OM5) guarantee transmission distances up to 100 meters, ensuring consistent performance for high-speed computing matrices.
Our AOCs undergo extensive compatibility verification with mainstream switch operating systems, network interface cards (NICs), and routers, facilitating hassle-free deployment in heterogeneous environments.
Kocent Optec Limited supports diverse macro-scale applications across telecommunications, private enterprises, and cloud provider networks. As enterprise software shifts toward real-time telemetry, 5G edge computing, and distributed database clustering, high-throughput physical layers become the foundation of network reliability.
We work closely with customers across regions to address supply chain requirements, environmental laws, and localized network designs. With commercial representation spanning East/Southeast Asia, the Middle East, Europe (Eastern, Western, and Northern), the Americas, and Africa, we design systems that conform to both ITU-T recommendations and regional utility mandates.
Our solutions target common industry challenges such as reducing port-assembly heat signatures, optimizing bend-insensitive routing inside high-density patch panels, and ensuring long-term performance under harsh environmental conditions. From single-mode long-haul ADSS trunk fiber installations to short-reach AOC clusters inside containment zones, our products are engineered to protect your infrastructure investment.
We design and manufacture OEM/ODM fiber optic systems that satisfy the stringent technical requirements of leading global telecommunications operators.
Our active and passive interconnect components have successfully won international tenders and are deployed daily in the networks of these leading tier-1 carriers:
Staying ahead of bandwidth demands through advanced product design and investments in next-generation silicon photonics.
As computing requirements double every few months to support AI workloads, the optical communications industry is rapidly preparing for the next physical layers. Kocent Optec Limited is matching this pace by actively researching 800G AOCs and 1.6T transceiver modules. Our design pathway centers on transitioning from 50G PAM4 per-lane modulation to 100G and 200G PAM4 optical pathways.
To support this evolution, we are upgrading our manufacturing environments to handle advanced packaging technologies like Silicon Photonics (SiPh) and Co-Packaged Optics (CPO). This helps mitigate electromagnetic interference and minimizes physical trace distances between the switch ASIC and the optical transceiver engines. In parallel, we continue to optimize our passive MTP/MPO fiber infrastructure, producing ultra-low insertion loss couplers and multi-fiber trunks capable of supporting high fiber-count breakout scenarios.
We are also focused on developing eco-friendly materials. All future product lines are designed to comply with worldwide recycling regulations and halogen-free restrictions, ensuring high performance does not come at the expense of environmental sustainability.
Answers to key technical questions concerning 400G AOC integration, passive compatibility, and manufacturing standards.
400G AOCs utilize integrated optoelectronic modules permanently attached to the fiber cable. This configuration removes the optical connection interface (i.e., clean transceiver to patch cable interfaces), reducing internal reflection and insertion losses. Because the internal DSP chips are calibrated to a fixed fiber distance, signal optimization is highly efficient. This results in minimal latency overhead at the physical layer, which is essential for training cycles in high-performance computing (HPC) and artificial intelligence clusters.
Yes. As an OEM manufacturer, we support bespoke cable breakouts. We design and manufacture 400G QSFP-DD/OSFP to 4x 100G QSFP28 breakouts, as well as 400G to 8x 50G SFP56 configurations. This allows network administrators to connect high-density spine switches directly to legacy or diverse leaf switches and network interfaces, optimizing capital expenditure across heterogeneous hardware generations.
Every active optical assembly undergoes a comprehensive verification suite, including:
OM5 fiber is designed to support Shortwavelength Division Multiplexing (SWDM). While older OM3/OM4 fiber structures are optimized for a single 850nm wavelength, OM5 maintains high performance across a broader spectral range from 850nm to 953nm. This allows multi-lane setups to transmit multiple wavelengths over a single optical strand, dramatically increasing capacity and reducing physical fiber counts within high-density structured cabling paths.
Robust interconnect solutions manufactured to support continuous high-speed data transmission for telecom and cloud topologies.
KOCENT OPTEC
