Patent ID: 7433602
Filing Date: 2008-10-07
Classification: H04B

Abstract:
1. A transmitter in a fiber optic system, the transmitter comprising: a driver circuit configured to receive a modulated electrical signal and to have a driver circuit output impedance; a light emitting source having a light emitter impedance different than the driver circuit output impedance, the light emitting source configured to receive the modulated electrical signal such that it produces a modulated optical signal proportional to the modulated electrical signal; and a transmission line comprising two lines, the transmission line having a length between a first end and a second end, the two lines coupled to the driver circuit at the first end and to the light emitting source at the second end such that the two lines transmit the modulated electrical signal from the driver circuit to the light emitting source, the two lines configured such that impedance of the transmission line gradually changes over the length so that the two lines match the impedance of the driver circuit at the first end and match the impedance of the light emitter at the second end.