LiDAR (Light Detection and Ranging) is a remote sensing method that measures distance by emitting laser light to a target and detecting its reflection with a photosensor. LiDAR is increasingly important in applications such as automotive ADAS (Advanced Driver Assistance Systems), Automated guided vehicle (AGV) and range finding.
Light sources such as laser and photosensors such as photodiodes are employed in LiDAR.
We offer pulsed laser diodes for LiDAR and a variety of high-sensitivity photosensors that can be used for short-, mid-, and long-range detection by ADAS and autonomous vehicles. These photosensors include Si PIN photodiodes, Si APD, InGaAs APD, MPPCs (SiPMs), and distance image sensors.
We also offer custom specific products such as APD arrays integrated with Trans impedance Amplifier, to support diverse systems.
|Operation voltage||to several tens of V||100 to 200 V||to 10 V|
|Gain||105||10 to 100||1|
|Ambient light immunity||Medium||Medium||High|
|Uniformity||Good||Depends on the size||Good|
Devices that integrate a photosensor, such as a photodiode or avalanche photodiode (APD), and front-end integrated circuit (IC) that reads the signals from the photosensor. Suitable for rangefinders because of their excellent noise and frequency characteristics.
MPPC is a device having multiple APD pixels operating in Geiger mode. Its excellent sensitivity enabling detection of extremely weak light at photon counting level is suitable for long range measurements.
Si APD can measure longer distances than Si PIN photodiodes since it has high sensitivity for long wavelength of up to 900 nm. We also offer APD with a band-pass filter that decreases effect of background light, thereby supporting longer measurement distance at a higher accuracy.
InGaAs APD designed for distance measurement application using 1550 nm wavelength
Basic detector for rangefinders. Suitable for short-range measurement or use under bright light. It is affordably priced and features low-voltage operation. With a high-speed response, it can measure from the visible range up to 1000 nm. JEDEC level: 2a.
The laser diodes feature high-peak power under pulsed operation. Various types are available, with different peak output powers and emission widths.
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