A short wavelength infrared (SWIR) light detection and ranging (Lidar) unit comprising an emitter-detector module comprising a short wavelength infrared optical emitter and a short wavelength infrared detector, - said emitter-detector module comprising a platform on which said optical emitter and said short wavelength infrared detector are arranged; - said optical emitter comprising at least one semiconductor laser configured to emit a light beam having a wavelength in the short-wave infrared electromagnetic spectrum, defined between 1'000 nm and 3'000 nm, and configured to be operable in a pulsed mode so that, in operation, light pulses can be emitted, - said detector being configured for detecting, in operation of said Lidar, at least a fraction of an optical reflected beam provided by an at least partial reflection of a target illuminated by said light beam, - said short wavelength infrared Lidar being configured to be operable to at least a distance of 200 m relative to said optical emitter, being eye-safe at all distances relative to said emitter-detector module; characterized in that - said light pulses have a duration below 5 ns; - said short wavelength infrared Lidar comprising optical collimation means, configured to collimate said emitted light beam; - said detector comprising a readout wafer comprising a CMOS readout layer and a SWIR absorbing layer that is separated from said readout layer by a buffer layer said detector comprising between said buffer layer and said readout layer a p-n junction; - said detector comprises at least one avalanche photodiode; - said short wavelength infrared Lidar comprises light collection means configured to collect and direct said at least a fraction of the optical reflected beam to said detector; - said detector comprises at least one absorber layer made of a GeSn alloy. - said emitter-detector module comprising a platform on which said optical emitter and said short wavelength infrared detector are arranged; - said optical emitter comprising at least one semiconductor laser configured to emit a light beam having a wavelength in the short-wave infrared electromagnetic spectrum, defined between 1'000 nm and 3'000 nm, and configured to be operable in a pulsed mode so that, in operation, light pulses can be emitted, - said detector being configured for detecting, in operation of said Lidar, at least a fraction of an optical reflected beam provided by an at least partial reflection of a target illuminated by said light beam, - said short wavelength infrared Lidar being configured to be operable to at least a distance of 200 m relative to said optical emitter, being eye-safe at all distances relative to said emitter-detector module; characterized in that - said light pulses have a duration below 5 ns; - said short wavelength infrared Lidar comprising optical collimation means, configured to collimate said emitted light beam; - said detector comprising a readout wafer comprising a CMOS readout layer and a SWIR absorbing layer that is separated from said readout layer by a buffer layer said detector comprising between said buffer layer and said readout layer a p-n junction; - said detector comprises at least one avalanche photodiode; - said short wavelength infrared Lidar comprises light collection means configured to collect and direct said at least a fraction of the optical reflected beam to said detector; - said detector comprises at least one absorber layer made of a GeSn alloy.