Patent ID: 8406634
Filing Date: 2013-03-26
Classification: H03F

Abstract:
1. An optical signaling system comprising: a laser driver having a bias control and a modulation control, said laser driver to receive, from an interface control for a device, a first digital voltage sequence and to generate a first current signal having a bias mode adjustable by said bias control and a modulation mode adjustable by said modulation control; a laser to generate a first optical signal responsive to the first current signal of the laser driver; a first photo-detector to receive a second optical signal and to generate a second current signal; a first transimpedance amplifier circuit to convert the second current signal to a first differential voltage signal wherein the first transimpedance amplifier comprises three stage pairs, where each pair comprises two inverter amplifiers, and where the two inverter amplifiers of the second stage pair are resistively cross coupled; a clock recovery circuit having a phase interpolator to generate an aligned clock signal for said first differential voltage signal; and a sampler circuit to generate a second digital voltage sequence responsive at least in part to the aligned clock signal and the first differential voltage signal, wherein said interface control is configured to receive said second digital voltage sequence after deserialization of said second digital voltage sequence.