Patent ID: 9020358
Filing Date: 2015-04-28
Classification: H04J

Abstract:
1. An optical transmission network comprising: a provider-side equipment comprising a multi-wavelength source, a first wavelength selective routing element connected to the multi-wavelength source, and a second wavelength selective routing element; and a client-side equipment for manipulating electrical signals comprising an optical modulator connected to the first wavelength selective routing element and an optical receiver, the optical modulator configured to receive the electrical signals from the optical receiver, wherein laser transmitters are excluded from the client-side equipment, wherein the second wavelength selective routing element is connected to the optical receiver and is configured to direct incoming optical signals to the optical receiver, and wherein the first wavelength selective routing element is connected to the optical modulator and is configured to provide a wavelength for modulating outgoing optical signals directly to the optical modulator, the wavelength for modulating outgoing optical signals being independent of wavelengths of the incoming optical signals.