Patent ID: 8463124
Filing Date: 2013-06-11
Classification: H04B,H04J

Abstract:
1. A method for enabling a sub-octave transmission of a digital signal over a passive optical network (PON) which comprises the steps of: establishing sub-octave bandwidths having a respective plurality of discrete carrier frequencies (f), wherein a first octave is bounded by a low carrier frequency (f modulating a plurality of digital signals onto a respective carrier frequency; converting the digital signals to create a plurality of optical signals; combining the plurality of optical signals to create a light beam wherein the light beam has a wavelength (λ); introducing the light beam into a first end of a fiber optic cable for transmission through the fiber optic cable from the first end to a second end thereof; retrieving the light beam from the second end of the fiber optic cable; splitting the light beam into subsets; directing each subset of the light beam to a designated optical receiver; reconverting the light beam to the modulated carrier frequency; filtering second order distortions outside the sub-octave from the modulated carrier frequency; tuning a selected modulated carrier frequency; and demodulating the tuned carrier frequency for receipt of its respective digital signal.