Patent ID: 8478127

Claim:
A media converter for interfacing an optical fiber data bus to an electrical interface of an electronic device, said media converter comprising: an interface circuit configured to convert electrical signals received from a transmitting channel of the electrical device in a voltage doublet format to positive logic electrical pulses and convert received electrical signals for application to a receiving channel of the electrical device from positive logic electrical pulses to a voltage doublet format; a DC coupled receiver comprising an optical interface operable for receiving optical signals from the optical fiber data bus, said DC coupled receiver operable for converting the optical signals to positive logic electrical pulses for application to said interface circuit; a laser diode operable to transmit optical signals onto the optical fiber data bus; a laser diode driver operable for receiving the positive logic electrical pulses from said interface circuit and converting the electrical signals to signals compatible for operating said laser diode; and an automatic power control circuit configured to stabilize output power of said laser diode over an operating temperature range of said media converter.