About NAFO

North America's Source for Coretek Fiber Optics

We are the sole North American distributor of Coretek Opto — a Taiwan-based manufacturer of MSA-compliant fiber optic transceivers built for the most demanding network environments.

Who We Are

Connecting North American networks to Taiwan's best optical technology

North America Fiber Optics (NAFO) was established as the sole North American distribution partner for Coretek Opto, bringing Taiwan's precision-manufactured optical transceivers directly to carriers, integrators, and enterprises across Canada and the United States.

Our product range covers every major fiber optic standard from 155 Mbps (OC-3) to 800G, in form factors including 1x9, SFF, SFP, SFP+, SFP28, QSFP+, QSFP28, QSFP56, QSFP-DD, and OSFP. We also distribute PON modules (GPON, EPON, XGS-PON, 25G SPON), fiber optic sub-assemblies (OSA, BOSA, ROSA, TOSA), and AOC/DAC cables.

All products are MSA-compliant and compatible with equipment from Cisco, Juniper, Arista, Dell, Nokia, Calix, ZTE, and other major network vendors.

1,100+

Transceiver SKUs

155M–800G

Data rate range

10+

Years of partnership

1 day

Quote response time

Industries Served

TelecommunicationsBroadband AccessData CentersCloud ComputingIoTEnergyMilitaryMedicalIndustrial Automation

Our Manufacturing Partner

About Coretek Opto

Founded in Taiwan in 1997, Coretek Opto has spent over 29 years engineering and manufacturing precision fiber optic components and transceivers. Their production capabilities span the full optical manufacturing stack: die attach, wire bonding, surface-mount technology (SMT), optical sub-assembly, and complete subsystem integration.

Coretek manufactures to both industry-standard MSA form factors and fully custom specifications. Their engineering team supports custom wavelength selection, custom form factors, application-specific coding, and extended temperature range qualifications for defense, industrial, and telecom OEM customers.

Coretek Opto products are RoHS certified and manufactured under rigorous quality controls. NAFO is Coretek's sole authorized North American distributor.

Coretek Opto headquarters in Taiwan — fiber optic transceiver manufacturer since 1997

Capabilities

What we can do for you

White-Label & Custom Coding

All Coretek transceivers can be coded to identify as any supported third-party brand — Cisco, Juniper, Arista, Dell, or custom EEPROM programming for proprietary platforms.

Standard & Custom Form Factors

From legacy 1x9 and SFF modules to cutting-edge OSFP 800G. Custom form factors and mechanical packaging can be engineered for OEM applications.

Industrial Temperature Range

Most SKUs available in industrial-grade (−40°C to 85°C) variants for outdoor telecom, energy, military, and harsh-environment deployments.

OEM Sub-Assemblies

Coretek supplies OSA, BOSA, ROSA, and TOSA components to OEM customers with custom wavelength and mechanical specifications.

Broad Speed Range

Single-source for 155 Mbps through 800G. Whether you're upgrading SONET infrastructure or deploying hyperscale 400G, we carry the optics from one supplier.

Fast Quote Response

Submit a request online and receive a quote within 1 business day. Every order is quoted based on form factor, quantity, coding, and temperature.