| Patent Number |
Title Of Patent |
Date Issued |
| 7019832 |
Optical spectrometer with several spectral bandwidths |
March 28, 2006 |
| An optical spectrometer comprises at least two coupling apertures with different mode field diameters, a means for dispersing the light beams exiting each of the coupling apertures along a dispersion axis and at least two decoupling apertures on which the dispersed light beams are im |
| 6614527 |
Spectral bandwidth calibration of an optical spectrum analyzer |
September 2, 2003 |
| In an optical spectrum analyzer, the respective wavelength bandwidths of the optical spectrum analyzer are determined at the wavelengths of the reference lines and used as calibration data for determining measurement tolerances by means of reference lines of known wavelength and known |
| 6614513 |
Apparatus and method for measuring the chromatic dispersion of an optical transmission link |
September 2, 2003 |
| In a method for measuring the chromatic dispersion of a light waveguide an amplitude modulated broadband optical signal is fed into the optical transmission link to be measured, the transmitted signal is separated into a reference path, in which the modulation frequency is demodulated ou |
