Patent ID: 6151144
Filing Date: 2000-11-21
Classification: G02B,H04J,H04N,H04Q

Abstract:
A method of operating a passive optical network providing a predetermined wavelength of data to remote users comprising the steps of:a) providing, by a plurality of access providers, a plurality of signal components of predetermined wavelengths, each access provider providing a signal component of wavelength different from that of the other access providers;b) transmitting the signal components as a multiwavelength signal;c) receiving and power-splitting the multiwavelength signal into a plurality of distributed multiwavelength signals each associated with a respective remote user; andd) selectively filtering out, for each remote user, one of the signal components to provide the remote user with a selected one signal component of predetermined wavelength;wherein step (d) further includes providing a card containing an optical filter, inserting the card into a remote optical network unit associated with the remote user, and positioning the card so that the optical filter is in position to intercept the respective multiwavelength signal and pass the selected one signal component.