Pulsed lidar with semiconductor optical amplifier controlled by a modulated signal
AssigneesLeosphere, Onera
InventorsVincent PUREUR, Marco CASALE, Borislav MILEVSKY, Laurent LOMBARD, Didier GOULAR
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Abstract
A pulsed LiDAR including a master laser able to emit a master laser beam, a pulse generator arranged to generate a pump signal including at least one pulse, a peak value of which varies during the at least one pulse of the pump signal, and a semiconductor optical amplifier (SOA) arranged to amplify and modulate the master laser beam on the basis of the pump signal, with the amplified and modulated laser beam forming a measurement laser beam is disclosed.
Claims17
A pulsed LiDAR comprising:
- a master laser capable of emitting a master laser beam;
- a pulse generator arranged to generate a pump signal comprising at least one pulse, a peak value of which varies over the course of said at least one pulse of said pump signal;
- and
- a semiconductor optical amplifier (SOA) arranged to amplify and modulate the master laser beam as a function of the pump signal, the amplified and modulated master laser beam forming a measurement laser beam.
A method of amplifying a master laser beam of a pulsed LiDAR, comprising the steps consisting of:
- generating a pump signal comprising at least one pulse, a peak value of which varies over the course of said at least one pulse of said pump signal;
- and
- amplifying and modulating the master laser beam by means of a semiconductor optical amplifier (SOA) of the pulsed LiDAR as a function of the generated pump signal, the amplified and modulated master laser beam forming a measurement laser beam.
Dependencies are inferred from the claim text.