Patent ID: 6144472
Filing Date: 2000-11-07
Classification: H04B

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 an access provider, an optical multiwavelength signal having a plurality of signal components each of predetermined wavelength;b) transmitting the 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 of the associated distributed multiwavelength signal 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.