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

Fixed Attenuator

For use at wavelength windows such as C, L, C+L, or S bands.

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

This component has standard attenuation values ranging from 1–20 dB, and low temperature and polarization dependence due to G&H’s proprietary manufacturing technology. Fixed attenuators can be optimized for custom attenuation levels, tolerances, and wavelengths, please contact us to find out more.

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 loss55 dB
Pigtail tensile load5 N
Operating temperature-40 – +75°C
Storage temperature-40 – +85°C
Environmental qualificationTelcordia GR 1221

Housing codeDescriptionDimensions (mm)Pigtail
3Regular3.0 (∅) x 55 (L)Primary-coated fiber
4∅0.9 mm slim3.0 (∅) x 65 (L) ∅0.9 mm loose-tube
5∅0.9 mm semi-ruggedize5.0 (∅) x 80 (L)∅0.9 mm loose-tube
6∅3.0 mm fully-ruggedized80 (L) x 10 (W) x 8 (H)∅3.0 mm fan-out sleeving

Order code

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