Industry-standard solutions optimized for high-bandwidth density, low latency, and ruggedized operation.
As global data rates balloon, optical backbones require ultra-stable, high-density, and long-range connectivity structures. The 100G BASE-LR4 optical transceiver represents a standard baseline for Single Mode Fiber (SMF) transmission up to 10 kilometers. Using a QSFP28 form factor, it packages four discrete optoelectronic wavelengths around the 1310nm window to bypass the fiber dispersion barrier without bulk amplification.
Unlike shorter-reach multi-mode interfaces, the LR4 standard uses four LAN-WDM optical lanes (1295.56nm, 1300.05nm, 1304.58nm, and 1309.14nm). Each wavelength operates at a baseline rate of 25.78125 Gbps, aggregating into a massive 103.1 Gbps pipeline. For hyperscale operations and service providers seeking localized deployment efficiency, sourcing from a vetted China 100G Base LR4 factory ensures optimized BOM (Bill of Materials) control and high yield rates.
13+ Years of Manufacturing Excellence in Telecom and Enterprise Solutions.
Established in 2012 in Hong Kong as a high-tech communications enterprise, Kocent Optec Limited has grown to become one of China’s leading fiber optic termination product manufacturers and solution providers. We are dedicated to developing and manufacturing premier communication components, spanning from passive couplers, adapters, and cabling assemblies to high-speed active optical transceivers for data centers and metro telecommunication rings.
Our competitive edge lies in the intersection of strict quality methodologies, state-of-the-art packaging equipment, and global regulatory compliance. We work hand-in-hand with engineering groups to customize optical links, enabling partners to outperform competitors via superior system budgets and rock-solid link integrity.
Standard engineering variables for QSFP28 100G LR4 SMF modules.
| Parameter | QSFP28 100GBASE-LR4 Standard | Kocent Production Tolerances | Impact on System Architecture |
|---|---|---|---|
| Wavelength Channels | 4x LAN-WDM (1295.56 ~ 1309.14nm) | ± 0.05nm stability | Prevents inter-channel crosstalk over 10km spans. |
| Transmitter Type | EML (Electro-absorption Modulated Laser) | Industrial Grade DFB/EML available | Optimized eye diagram and higher extinction ratio. |
| Receiver Sensitivity | PIN / APD options | < -10.6 dBm (PIN) / < -12.5 dBm (APD) | Provides ample safety margins for patch panel insertion loss. |
| Connector Port | LC Duplex | Low insertion-loss ceramic sleeve | Easy integration with existing single-mode patch cables. |
| Reach Envelope | Up to 10km over SMF | Verified 10km links under continuous load | Excellent for Metro-E backhauls and intra-campus distribution. |
| DOM Support | SFF-8636 Compliant | Included (Voltage, Temperature, Bias Current, Rx/Tx Power) | Permits telemetry monitoring from network operating centers. |
How 100G BASE-LR4 drives modern cloud, metropolitan networks, and industrial grids.
Within large-scale distributed cloud facilities, spine-to-leaf architectures require stable links exceeding the 2-kilometer limitation of CWDM4 and PSM4. The 100G Base LR4 interface provides a resilient solution for spanning wide campus complexes, bridging storage units and compute clusters with zero bit-error-rate drops.
Telecom service providers use 100G LR4 modules for fiber rings and metro backhauls. By transmitting over single-mode fiber (SMF) via LC duplex connectors, operators avoid expensive amplification gear. Kocent's optics integrate seamlessly with optical transport platforms to build robust backbones.
In harsh electromagnetic environments like power plants, steel mills, and railway networks, optical transmission provides total immunity from electrical noise. The 100G LR4 standard ensures high-bandwidth telemetry can traverse 10km distances between control hubs and remote sensory systems.
With more than 13 years of experience in manufacturing telecommunication fiber optic products, we strictly adhere to international optical communication standards. We leverage mature, scientific testing methodologies to ensure every transceiver is validated before leaving the factory.
Every Kocent 100G LR4 transceiver undergoes rigorous multi-temperature testing, spectral testing, and switch-level interoperability validation. This intensive inspection protocol limits infant mortality failures and guarantees drop-in compatibility with legacy switches, routers, and transport gear.
Trusted by premier global carriers for critical infrastructure deployment.
Years of sales and service experience have enabled us to secure client relationships across East Asia, Southeast Asia, the Middle East, Eastern Europe, Western Europe, Northern Europe, South America, North America, North Africa, and South Africa.
Our OEM and ODM transceivers have repeatedly won local and international Telecom Operator tenders. This track record proves our products satisfy both cost containment profiles and rigid reliability parameters mandated by tier-one carriers.
Aligning 100G BASE-LR4 with upcoming high-density bandwidth standards.
Transitioning from discrete EML/PIN assemblies to highly integrated Silicon Photonics (SiPh) architectures. This reduces operational heat load and manufacturing costs while preserving 10km link budgets.
As switch ASICs pass 51.2T rates, 100G interfaces are evolving into co-packaged and board-level micro-optics. This facilitates low-power, high-density linecard architectures.
Our factory pipeline supports direct migration to 400G and 800G coherent optics. We help customers leverage current single-mode fiber (SMF) plants to transition to PAM4 modules smoothly.
Providing clarity on engineering, deployment, and factory integration protocols.
Complete your link budget with premium cabling, termination components, and passive accessories.
KOCENT OPTEC
