The dTOF in LIDAR Ranging uses optical pulse modulation, the narrower the optical pulse width, the higher the ranging accuracy; the higher the peak power, the longer the ranging, however, high-power lasers use DC charging with serious heating, and laser characteristics are affected deeply by the temperature, in order to measure the performance of the device in working , the need for micro-second or even nanosecond driving ability of the device to test it. S3026P Single-Channel PXIe Pulse Precision SMU supports 1us~500us narrow pulse output, and connects up to 2m cable to keep the pulse without distortion, which can be widely used in the verification test of LIDAR pulsed lasers.

1,dTOF

Lidar Ranging in the dTOF  which is“Direct Time of Flight”, dToF uses optical pulse modulation, by transmitting light pulses to the target under test, measuring the time interval between the transmit pulse and the receive pulse, and directly calculates the distance of the target to be measured (depth information). dToF ranging, the pulse drive circuit drives the laser to emit a When dTOF ranging, the pulse driver circuit drives the laser to emit a very short duration but very high instantaneous power optical pulse, the receiving optical circuit of the ranging module receives the optical signal, which is converted into photocurrent through the optoelectronic device, and delivered to the echo signal processing circuit.

2,Single-Channel PXIe Pulse Precision SMU S3026P

Semight Instruments S3026P is a single channel PXIe pulse Precision SMU for the lidar market. It provides high precision pulse current output and synchronous measurement of pulse current and DUT voltage drop.

Product Features

01,Narrow Pulse Width

Minimum pulse width 1us, adjustable pulse width range 1us~500us

02,High Current

03,High-Speed Measurement

Real-time reading of pulse current and DUT voltage drop with sampling rate up to 10MSa/s

04,Fast Rising Edge

Typical rise time <200ns