Patent ID: 6445474
Filing Date: 2002-09-03
Classification: H04B

Abstract:
An optical transmitter intended to transmit an optical signal through a broadband transmission network including at least one optical fiber that transports an optical signal from a transmitter to at least one optical receiver, the optical transmitter including at least two optical sources arranged in series and driven simultaneously, wherein the transmitter includes means for separately supplying DC bias current to the optical sources and for supplying AC modulation current to them in series, while the separate DC currents biasing the optical sources flow via at least two inductances that have a value that is sufficient to practically block the flowing of the AC modulation current, and wherein the two optical sources are directly connected in series, and in that the transmitter includes a push-pull arrangement whose output is connected to the common point between the diodes, so as to add or take out current from one of the diodes.