Fused Fiber Optic Components: Couplers

Source: G&H

Applied in many fields, including avionic and space communications, biomedical instrumentation, fiber laser systems, industrial micromachining, interferometry, lidar, medical diagnostics, optical coherence tomography (OCT), sensing, and telecommunications, G&H's fused fibre components play a vital role in aligning and marrying individual cable fibers.

G&H manufactures a comprehensive line of fused fiber couplers for visible and NIR through to 2.2 µm wavelengths using single-mode (SM), polarization maintaining (PM), multimode (MM) and double clad (DC) fiber. Our fused fiber components are characterized by low insertion loss and high extinction ratio, and are manufactured to exacting standards for quality and reliability across PM, SM, MM, and DC fiber component lines. For more information on fused fiber optic components, please download the available datasheets. A small selection of the G&H portfolio of fused fibre optic components are displayed below.




Fixed Attenuator


400 – 2200 nm

Fused Fiber Coupler C or L Band

Tap Coupler

C,L band

Visible Wavelength Combiner


400nm - 700 nm

Sub-Miniature Pump Signal WDM


980 nm, C, C+L band, L band

Sub-Miniature Tap Coupler

Tap Coupler

C,C+L,L,S band

Single Fuse Coupler

1x3, 3x3, 1x4, 4x4

980,1310,1480,1550,1585 nm

Near Infrared Coupler

Tap Coupler

700 - 1200 nm

Visible Wavelength Coupler

Tap Coupler

400 - 700 nm

Fused Pump Signal WDM 980nm


980 nm, C, C+L, L

Fused Coupler For 2000nm (2µm)

 Tap coupler

1900–2200 nm

PM Coupler

 Tap coupler

 750-1700 nm

PM Fused Coupler For 2000 nm (2µm)

Tap coupler

1700 —2200 nm

PM Combiner

Polarisation beam combiner

900 – 1700 nm

Ultra-Low Ratio Tap PM Coupler

Tap coupler

700 - 1600 nm 0.001-10%

6+1x1 MM Power Combiner With Signal Feedthrough, 2000 nm (2µm)

Tapered fiber bundle SM/PM

1000 – 2200 nm

2+1x1 MM Power Combiner With PM Signal Feedthrough

Tapered fiber bundle SM/PM

1000 – 2200 nm

Extended Wideband OCT Coupler (EWOC)

Wideband tap coupler

840, 1060, 1300 nm

Wideband OCT Coupler

Wideband tap coupler

840, 1060, 1300 nm


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