Coherence length

Applied Optoelectronics Announces Narrow Linewidth Laser for automotive LIDAR

Retrieved on: 
Monday, March 30, 2020

Current automotive LIDAR systems are based on near infrared lasers, however these lasers are not eye safe and therefore are limited in terms of emitted power.

Key Points: 
  • Current automotive LIDAR systems are based on near infrared lasers, however these lasers are not eye safe and therefore are limited in terms of emitted power.
  • AOIs laser operates at longer wavelengths near 1550-nm where eye-safe emission limits are much higher and therefore detection distances are longer, making them better suited for real-world automotive sensors.
  • Combining high optical output power with narrow linewidth further increases the detection range of a LIDAR system by increasing the coherence length of the laser output compared to similar lasers with wider linewidth.
  • Applied Optoelectronics Inc. (AOI) is a leading developer and manufacturer of advanced optical products, including components, modules and equipment.