Patent ID: 6614527
Filing Date: 2003-09-02
Classification: G01J

Abstract:
Method for determining measurement tolerances of an optical spectrum analyzer by means of at least one reference line of a known wavelength and known spectral bandwidth, wherein from the known spectral bandwidth of the at least one reference line and from the spectral bandwidth of the at least one reference line measured with the optical spectrum analyzer, the respective spectral bandwidth of the optical spectrum analyzer is determined at the wavelength of the at least one reference line in approximation via the following formula:&Dgr;&lgr;OS={square root over (&Dgr;&lgr;M2âˆ’&Dgr;&lgr;R2)}, where &Dgr;&lgr;R is the spectral bandwidth of the at least one reference line, &Dgr;&lgr;M is the measured bandwidth of the at least one reference line and &Dgr;&lgr;OS is the spectral bandwidth of the optical spectrum analyzer.