Optical transmitter using two or more optical sources

摘要

The transmitter comprises two optical sources (201, 202) simultaneously supplied with modulation current in series, whereas they are separately supplied with DC bias current. The separation between the modulating currents of the two optical sources is realized by means of inductances (214, 215, 227). A first optical source (201) receives on its anode the modulation signal coming from an input (216) and then emits the modulation signal to the second optical source (202) via a coupling capacitor (226) between the two optical sources.