Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Robert Polster

Ivan Miro Panades

Yvain Thonnart

José-Luis Gonzalez Jimenez

José Luis Gonzalez Jimenez

An optical receiver of an optical link having: a photodiode coupled between a detection node and a first supply voltage rail, the photodiode being adapted to receive an optical clock signal including pulses; a switch coupled between the detection node and a second supply voltage rail; and a first transistor coupled by its main conducting nodes between the second supply voltage rail and a first output node and having its control node coupled to the detection node, wherein the switch is controlled based on a voltage at the first output node.

Optical link clock receiver

An optical receiver adapted to convert a received optical signal into a phase change of a timing signal to generate a first modified timing signal and to generate a data signal by comparing the first modified timing signal with a reference signal.

Optical data receiver with relative phase detector

A clock receiver including: a ring oscillator adapted to generate a clock signal, the ring oscillator having a sequence of N inverters, an input of a first inverter being coupled to a feedback node, an input of a second inverter being connected to an output of the first inverter and to an input line for receiving a reference clock signal, and an output of the second inverter or of a third inverter providing a first phase signal; a further sequence of inverters, an input of a first further inverter being coupled to the feedback node, and an output of another further inverter providing a second phase signal; and a control circuit for adjusting an oscillation frequency of the ring oscillator based on the relative phases of the first and second phase signals.

Injection locked clock receiver

The invention concerns an optical receiver comprising: a photodiode () coupled to the input of a trans-impedance amplifier () such that the trans-impedance amplifier receives the current (I) of the photodiode; a first comparator () adapted to compare an output voltage (V) of the trans-impedance amplifier () with a threshold voltage (V); and a threshold control block () for generating the threshold voltage (V), wherein the threshold control block () comprises at least one capacitor coupled to the output () of the trans-impedance amplifier () via at least one switch.

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Berlin, Germany

Robert Polster