Skip to Content
Fiber-Optic Couplers (Hi Rel and SM) product image

Fused Coupler C+L or S band

For splitting and monitoring C+L or S bands.

Full Product Description
1460–1530 nm (S band), 1530–1565 nm (C band), 1565–1625 nm (L band)
Request a quote

Need a product customized?

We can customize our products to fit your requirements.

Find out more

Product description

G&H’s proprietary manufacturing technology provides uniquely low loss and wavelength dependence, along with low polarization and temperature dependence for both signal and tap ports.

These fused couplers are available in a wide range of tap ratios, wavelength ranges, housing, and connector options, and can be readily specified in a wide variety of applications, enabling rapid design cycles and new project builds. Reliability is assured through qualification to Telcordia GR-1221, with a field-proven FIT rate of <1.

Key features

  • Ultra-low loss ( < 0.05 dB)
  • High power handling
  • High reliability
  • Telcordia GR-1221 compliant


Wavelength1460–1530 nm (S band), 1530–1565 nm (C band), 1565–1625 nm (L band)
Return loss/directivity55 dB
Pigtail tensile load5 N
Optical power handling4 W
Operating temperature-40 to +75° C
Storage temperature-40 to +85° C
Environmental qualificationTelcordia GR 1221

Housing CodeDescriptionDimensions (mm)Pigtail
2Miniature3.0 (∅) x 45 (L)Primary-coated fiber
3Regular3.0 (∅) x 50 (L)Primary-coated fiber
4Semi-ruggedized slim3.0 (∅) x 60 (L)∅0.9 mm loose-tube
5Semi-ruggedized5.0 (∅) x 75 (L)∅0.9 mm loose-tube
6Fully-ruggedized80 (L) x 10 (W) x 8 (H)∅3.0 mm fan-out sleeving
7High power5 (W) x 5 (H) x 85 (L max)Primary-coated fiber
CRegular high power3.0 (∅) x 50 (L)Primary-coated fiber

Order code

Guidance on how to create an order code is available in Downloads below.