Patent ID: 7962038

Claim:
A system comprising: an optical line terminal (OLT) that includes: an OLT transmitter comprising: one or more fixed wavelength optical sources to generate a first optical signal at a first wavelength, and a first optical waveguide to transmit the first optical signal at the first wavelength in an optical network; and an OLT receiver comprising: a second optical waveguide to: receive, from the optical network, a second optical signal at a second wavelength, and one or more fixed wavelength optical filters to receive, from the second optical waveguide, the second optical signal at the second wavelength, where each of the one or more fixed wavelength optical filters include: a plurality of fixed wavelength optical filter elements to receive, from the optical network, a respective plurality of optical signals at a respective plurality of wavelengths, a magnetic-based device to move one of the plurality of fixed wavelength optical filter elements to receive the second optical signal at the second wavelength, and an optical receiver to receive the second optical signal at the second wavelength from the one of the plurality of fixed wavelength optical filter elements moved by the magnetic-based device.