NPL calibration fibres and artefacts suitable for the calibration of fibre optic test instrumentation.

		Single mode and multimode fibres calibrated for spectral attenuation Can also be used to calibrate OTDRs.
		Cut-off wavelength reference fibre Approximately 2.2 m of single-mode fibre, whose cut-off wavelength has been determined.
		Chromatic dispersion reference fibre Typically 13 km of single mode or dispersion shifted fibre, calibrated in the 1300 and 1550 nm windows.
		Mode Field Diameter reference fibre Calibrated at 1310 and 1550 nm. Matched clad and dispersion shifted fibres are available. Can be mounted in an SRM-style retractable holder on request. Effective Area (Aeff) calibration is also available.
		Low mode coupled PMD calibration artefact Artefacts with DGD in the range 0.3 ps to 15 ps are available.
Not currently available		High mode coupled PMD calibration artefact Multiple wave plate stack, with PMD of ~0.5 ps.
Not currently available		PDL calibration artefact Nominal PDL values of 0.1, 0.05 or 0.01 dB.
		Multi-step index calibrated reference fibre 10 m length of specially designed optical fibre that has a multi-step refractive index profile, which can be used to calibrate the refractive index difference scale.
		Cladding mean diameter and non-circularity reference fibre Mounted in a retractable holder to protect the cleaved end of the fibre.
		OTDR calibration fibres 2.2 km and 13 km lengths of single mode fibre, calibrated for attenuation coefficient uniformity and optical length. Supplied with FC/PC connectors.
		OTDR Return Loss Calibration Artefact Return loss values of 30, 40 and 50 dB are available.
		OTDR distance scale calibration artefact Single mode and multimode versions are available. Providing a number of calibration features along the distance scale of an OTDR.
		NPL Fibre Attenuation Standard calibrated for spectral attenuation and optical length Single mode and multimode versions are available, provide proven attenuation stability to ± 0.03 dB. Suitable for the calibration of OTDRs.
Not currently available		Etalon artefact suitable for the calibration of the wavelength scale of Optical Spectrum Analysers (OSAs)

Some reference fibres can be calibrated for more than one quantity.

Other artefacts and combinations of fibres and connectors may also be available.

Customers' fibres and some test equipment can be calibrated on request.

Contact

Customer Service tel: +44 20 8943 8637
E-mail: fibreoptics_enquiries@npl.co.uk