SEI Optifrontier is a comprehensive manufacturer of optical network products, optical modules and high-precision processing parts.

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Module Lineup

WBC coupler

WDM coupler

WDM coupler with filter

1x4 coupler

PLC Splitter

Standard tree coupler

CWDM (Coarse Wavelength Division Multiplexing) Module

Optical fiber filter (filter in connector)

Optical fiber filter (filter in adaptor)

Optical fiber filter (filter in fiber)

LD Module

Stubs/Optical Receptacles

Stubs/Fiber Capillaries

Pigtails for optical devices