OptiLinker
OptiLinker
100G Base-t Ethernet Module 850nm 100m MPO QSFP28 Optical Transceiver
QSFP28 100G Base-t 850nm 100m MPO MMF Fiber Optical Transceiver Module
100GBASE-LR4 Duplex LC SMF Optical Transceiver Module Single Mode 1310nm 100G QSFP28 10km
100GBASE-ER4 SMF QSFP28 Transceiver Duplex LC Single Mode 1310nm 100G Optical Module 40km
Serbia is rapidly emerging as the "Digital Crossroads" of the Western Balkans. With the Serbian government's heavy investment in the "National Broadband Plan" and the expansion of the State Data Centre in Kragujevac, the demand for high-capacity optical interconnects has shifted from 10G/40G legacy systems to high-performance 100G, 200G, and 400G architectures. As the regional tech hub grows, fueled by a booming ICT sector that contributes over 10% to the national GDP, the need for reliable manufacturers who can provide low-latency, high-density transceivers is paramount.
For Serbian ISPs, cloud service providers, and governmental institutions, upgrading to QSFP-DD and QSFP28 form factors is no longer a luxury—it's a requirement to handle the massive data throughput from 5G rollouts and the growing Smart City initiatives in Belgrade and Novi Sad. OptiLinker Optoelectronics provides the critical hardware bridge needed to sustain this growth, offering localized support and globally competitive manufacturing speeds.
In the global optical communication supply chain, the synergy between Chinese manufacturing efficiency and European quality standards is a game-changer. OptiLinker, based in China's high-tech manufacturing corridors, leverages a massive supply network of 850+ partners to ensure component availability even during global shortages.
Our production facility utilizes AOI (Automated Optical Inspection) and 100% material screening. For our Serbian clients, this means a significant reduction in Total Cost of Ownership (TCO) without sacrificing E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness). Every module—from a 100G LR4 to a 400G DR4—undergoes rigorous BER (Bit Error Rate) testing and eye diagram analysis before shipping to the Balkans.
35 dedicated QC professionals performing high/low temperature cycling and protocol compatibility programming for Cisco, Juniper, Mikrotik, and more.
Low-latency 100G and 200G modules for high-frequency trading and secure banking data backups between primary sites and disaster recovery centers.
Utilizing 400G QSFP-DD modules to support the massive increase in mobile data traffic as Serbian carriers expand their 5G coverage.
Providing high-bandwidth links for the University of Belgrade and scientific institutes to facilitate international data-heavy research collaborations.
The transition from 100G to 400G involves more than just speed; it represents a fundamental shift in signaling technology. While 100G typically uses NRZ (Non-Return to Zero) modulation, 400G utilizes PAM4 (Pulse Amplitude Modulation 4-level) to double the data rate within the same bandwidth.
OptiLinker's 400G modules, such as the 400G DR4 and FR4, incorporate sophisticated DSP (Digital Signal Processing) chips to manage the signal integrity challenges inherent in PAM4. For Serbian network architects, this means more efficient use of fiber resources and lower power consumption per gigabit—a critical factor for sustainable data center growth.
100GBASE-ZR4 Duplex LC SMF Optical Module 1310nm Single Mode 100G QSFP28 Transceiver 80km
200GBASE-SR4 Optical Transceiver Module MTP/MPO-12 MMF Multimode 850nm 200G QSFP56 100m
400G DR4 QSFP-DD PAM4 1310nm 500m MTP/MPO-12 APC SMF Optical Transceiver Module
Single Mode 400G CWDM QSFP-DD LR4 10km Duplex LC SMF Optical Transceiver Module
400GBASE-FR4 Duplex LC Optical Module 400G CWDM QSFP-DD PAM4 2km DDM SMF Optical Transceiver
400GBASE-LR8 Duplex LC Optical Transceiver Module SMF 1310nm 400G QSFP-DD 10km
400GBASE-ER8 Single Mode 1310nm 400G QSFP-DD 40km Duplex LC SMF Optical Transceiver Module
Multiple Mode 850nm 400G QSFP-DD SR8 100m MTP/MPO-16 APC MMF Optical Transceiver Module
100GBASE-PSM4 QSFP28 1310nm 500m SMF 100G MPO-12 Optical Transceiver Module
QSFP28 100GBASE-PLR4L 1310nm 2km 100G MPO-12 SMF Optical Transceiver Module
100GBASE-ESR4 QSFP28 100G 850nm 300m MPO-12 MMF Optical Transceiver Module
100GBASE-SL4 Multimode 100G QSFP28 850nm 30m MPO-12 MMF Optical Transceiver Module
OptiLinker Optoelectronics Co., Ltd. (OptiLinker) is a professional optical transceiver manufacturer and solution provider under the brand OptiLinker (www.optilinkertrans.com), specializing in high-speed optical communication modules for global data center and telecom applications.
Founded in 2016, OptiLinker operates a modern production facility with a total building area of approximately 320㎡ (core assembly). With continuous development in optical communication technology, the company has accumulated over 12 years of industry experience and approximately 8 years of export experience. In the past year, OptiLinker achieved an annual export revenue of around USD 12 million, serving customers across North America, Europe (including the growing Balkan market), Southeast Asia, and the Middle East.
400G QSFP-DD offers the highest port density and is backwards compatible with QSFP28, making it ideal for the limited rack space in emerging Serbian edge data centers while supporting future bandwidth requirements for AI and cloud computing.
Yes, Mikrotik is widely used across Serbia and the Balkans. We provide custom firmware coding to ensure 100% compatibility with Mikrotik, Cisco, Juniper, and Huawei equipment used by Serbian ISPs.
Thanks to our efficient supply chain in China, standard 100G/400G modules are usually in stock and can be shipped within 3-5 business days, with air freight delivery to Belgrade Nikola Tesla Airport within 7-10 days.
Our 100GBASE-ZR4 modules undergo 100% full-load aging tests and BER (Bit Error Rate) verification over simulated fiber distances to ensure stable performance for regional inter-city links in Serbia.