Explore our elite selection of high-reliability interconnect modules, designed to ensure low insertion loss, high durability, and maximum data integrity across data center and metropolitan networks.
Kocent Optec Limited, established in 2012 in Hong Kong as a high-tech communication enterprise, is one of China's leading fiber optic termination product manufacturers and solution providers. We are fully dedicated to developing and manufacturing premier fiber optic communication products, ranging from passive components to active optoelectronic categories, designed for global telecommunication networks, enterprise infrastructures, and next-generation data centers.
By leveraging our extensive engineering experience and mature production capacities accrued over a decade, we magnify the operational outcome for our valuable customers. This strategic efficiency ultimately expands their core competencies and helps them outperform global competitors. At Kocent Optec, we place tremendous emphasis on deep customer collaboration, defining ourselves not merely as a vendor, but as a strategic partner in fiber optic connection solutions.
The 10G BASE-ER SFP+ optical transceiver represents a vital link in regional and metropolitan network deployments. Tasked with transmitting high-speed 10 Gigabit Ethernet signals up to 40 kilometers over single-mode fiber (SMF) without the need for inline optical amplifiers, the ER module operates under strict physical and optical limits.
Unlike short-reach modules (SR, LR) that rely on VCSEL or traditional DFB lasers with standard PIN receivers, 10G BASE-ER modules typically employ a cooled 1550nm Distributed Feedback (DFB) laser paired with an ultra-sensitive Avalanche Photodiode (APD) receiver.
The APD is essential for the ER module. Due to its internal multiplication mechanism, the APD amplifies the photocurrent, enabling receiver sensitivities as low as -15 dBm to -16 dBm. This is critical for spanning the standard 15 dB optical link budget required for 40km reaches on standard G.652 single-mode fiber, where fiber attenuation at 1550nm averages roughly 0.2 dB/km.
| Parameter / Specification | 10G BASE-LR (Reference) | 10G BASE-ER (Long Reach) | Design Advantage / Benefit |
|---|---|---|---|
| Operating Wavelength | 1310 nm | 1550 nm | Minimizes attenuation (typically ~0.2 dB/km at 1550nm vs 0.35 dB/km at 1310nm). |
| Transmitter Type | Uncooled DFB Laser | Cooled EML or Cooled DFB | Cooled lasers prevent wavelength drift under extreme temperature variations, stabilizing SNR. |
| Receiver Technology | PIN Photodiode | APD (Avalanche Photodiode) | Provides high multiplication gain, allowing detection of highly attenuated weak signals. |
| Max Link Distance | 10 km | 40 km | Reduces intermediate active node requirements, dramatically lowering CapEx and OpEx. |
| Optical Power Budget | ~6.0 dB | ≥ 15.0 dB | Allows transmission through patch panels, optical splitters, and cross-connects without amplification. |
Standard single-mode fiber (G.652) exhibits its zero-dispersion wavelength around 1310nm. At 1550nm, chromatic dispersion is prominent, typically around 17 ps/(nm·km). Over 40km, the cumulative chromatic dispersion reaches approximately 680 ps/nm. To prevent severe inter-symbol interference (ISI) and ensure a low Bit Error Rate (BER ≤ 1e-12), high-quality 10G BASE-ER manufacturers must incorporate low-chirp transmitters (often using Electro-absorption Modulated Lasers, or EMLs) and digital signal filtering mechanisms.
Operating from our state-of-the-art facility in mainland China, Kocent Optec leverages advanced Industry 4.0 manufacturing processes. By integrating automated optical alignment systems, computerized digital diagnostic monitoring (DDM) calibrations, and an intelligent MES (Manufacturing Execution System), we guarantee precision manufacturing at scale.
Our strict fiber optic industry standards dictate that 100% of our products are tested and inspected before shipment. This includes testing eye diagrams, extinction ratios, receiver sensitivity curves across full temperature ranges (commercial 0-70°C and industrial -40 to 85°C), and verification against original vendor switches (such as Cisco, Juniper, Arista, and Huawei) for seamless multi-vendor interoperability.
Years of dedicated sales and service experience have enabled us to win clients across key global markets. Today, Kocent Optec's active and passive fiber solutions are deployed in East Asia, Southeast Asia, the Middle East, Eastern & Western Europe, Northern Europe, the Americas, and Africa. Many of our OEM and ODM products have won competitive Telecom Operator tenders, satisfying rigorous end-user criteria.
Our main terminal telecom operators include:
As networks evolve from 10G to 25G, 100G, and even 400G/800G, the legacy 10G BASE-ER footprint remains a critical component due to its cost-to-performance ratio in suburban and rural backhauls. However, we are actively spearheading the next generation of transceiver innovations:
Adapting the SFP28/SFP56 form factors to achieve 40km reaches at higher bandwidths. Implementing advanced PAM4 modulation formats to optimize signal integrity over legacy SMF fibers.
Transitioning long-haul connections to coherent optical modules, mitigating chromatic dispersion digitally (DSP) and bypassing the physical limitations of direct detection systems.
Redesigning integrated circuits (IC) to achieve lower power consumption metrics (under 1W per SFP+ module), directly lowering data center thermal load and cooling overhead.
With more than 13 years of experience in manufacturing telecommunication fiber optic products, we follow strictly fiber optic industry standards by using mature scientific methods to deliver your products on time and ensure that 100% products are tested and inspected before shipment.
Our high-performance transceivers and fiber optic cables serve as the bedrock for modern, secure, and ultra-high-speed communication networks across diverse sectors.
Providing heavy-duty outdoor distribution cabinets (like the FDB-08A), optical splitters, drop clamps, and high-density MPO breakout harnesses. These components optimize subscriber density and reduce installation times for rural and urban fiber rollouts.
Delivering 100G, 200G, 400G, and 800G optical engines, alongside elite-level multi-fiber MTP/MPO patch cords. Engineered to meet low latency, ultra-low back reflection, and robust thermal requirements of dense switch frameworks.
Leveraging 10G BASE-ER transceivers and DWDM optical multiplexers to bridge distinct geographical zones. Designed to bypass the need for expensive regenerative intermediate repeater systems over distances up to 40km.
Selecting the right optical components requires strict adherence to local regulations and reliable post-sale support. Kocent Optec ensures compliance across regional borders:
Every transceiver and passive assembly manufactured at Kocent Optec is compliant with CE, FCC, RoHS, and REACH directives. We source only flame-retardant LSZH (Low Smoke Zero Halogen) materials for our cables, guaranteeing that your infrastructure passes municipal fire codes and occupational safety regulations.
We provide complete, dedicated OEM/ODM customization services. This includes configuring unique DDM parameters, tailoring vendor compatibility codes to match proprietary equipment, and modifying physical cable configurations (such as customized breakout lengths and custom outer sheath materials). Technical engineers are available round-the-clock to assist with deployment issues and troubleshooting.
Get authoritative answers to technical and procurement questions concerning 10G BASE-ER transceivers and high-performance optical networks.
Browse our advanced portfolio of active optical transceivers, active optical cables (AOC), and dense multiplexers configured for enterprise and multi-tenant architectures.
KOCENT OPTEC