Wavelength References at the NMISA Fibre Optic Laboratory to Improve Uncertainty of Measurement for Telecommunication Wavelengths

摘要

Absolute wavelength references, hydrogen cyanide (HCN) and carbon monoxide (CO) in a glass gas cell coupled with fibre optic ports is used to get reliable and more accurate wavelength reference to improve uncertainties for fibre optic wavelength calibrations in the S-, C, and L-bands for telecommunication purposes. Method validation using a gas cell and a calibrated laser are discussed. The accuracy of the Optical Spectrum Analyser (OSA) is determined and wavelength sources can now be calibrated with an uncertainty of 0,05 nm at NMISA.