Products

Optical transceivers are hot-swappable modules that enable fiber and copper connectivity across telecom, data center, industrial, utility, and enterprise networks. They convert electrical signals into optical signals for transmission over fiber, supporting a wide range of data rates, distances, and network architectures. NAFO/Coretek supplies a comprehensive portfolio of optical transceivers designed and manufactured in Taiwan, supporting both legacy systems and next-generation high-speed networks. All products comply with applicable Multi-Source Agreement (MSA) specifications and meet CE, FCC, and RoHS requirements. Digital Optical Monitoring (DOM/DDM) is available on supported models to provide real-time visibility into operating conditions and optical performance.

 

 

Transceiver Product Categories

 

Our transceiver offering spans from low-speed legacy modules to ultra-high-speed optics, allowing customers to source multiple generations of technology from a single supplier.

 

100M to 4G Transceivers

This category includes SFP and related transceivers supporting data rates from 10 Mbps up to 4 Gbps. Products are available in multimode and single-mode fiber variants and include standard, BIDI, CWDM, DWDM, Fibre Channel, C37.94, and copper options. These transceivers are commonly used in industrial networks, access systems, utilities, and legacy telecom applications.

 

10G Transceivers

Our 10G transceiver range includes SFP+ modules supporting SR, LR, ER, EZR, and ZR reach options, as well as BIDI, CWDM, DWDM, CPRI, copper, and dual-rate configurations. These products are widely deployed in data center, enterprise, and telecom networks where higher bandwidth and longer transmission distances are required.

 

High-Speed Transceivers (25G and Above)

For next-generation networks, NAFO/Coretek offers 25G, 40G, 50G, 56G, 100G, 200G, 400G, and 800G transceivers in form factors including SFP28, QSFP+, QSFP28, QSFP56, QSFP-DD, QSFP112, and OSFP. These transceivers support modern optical variants such as SR, DR, FR, LR, and ZR and are designed for high-density data centers, cloud infrastructure, AI clusters, and high-performance computing environments.

 

Other Transceivers

This category includes legacy and application-specific products such as 1×9, SFF, CSFP, and video optical transceivers. These solutions support fixed-form platforms, broadcast and video transmission, and specialized industrial or telecom systems where modern pluggable optics are not applicable.

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Fiber optic components

Pigtailed OSA, BOSA, ROSA, and TOSA are the core optoelectronic building blocks used inside optical transceivers and custom optical modules. These components perform the essential functions of optical signal transmission and reception, converting electrical signals to optical signals and vice versa with high precision and stability. Pigtailed and receptacle configurations are available to support flexible system integration, reduce optical loss, and simplify assembly. Manufactured in Taiwan by Coretek, these components are designed for consistent performance, long-term reliability, and compatibility with telecom, industrial, test and measurement, and OEM optical systems.

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Reliable Performance Across Applications

 

Across all categories, transceivers are available with a wide range of transmission distances, from short-reach links within equipment rooms to long-distance connections exceeding 100 km. Each product is tested for optical performance, signal integrity, and interoperability with target platforms to ensure stable operation in commercial and industrial environments.

 

By offering a complete range of optical transceivers manufactured in Taiwan, NAFO/Coretek enables customers to standardize sourcing, simplify network upgrades, and support both current and future connectivity requirements with consistent quality and supply reliability.