Assessment of a Laser Rangefinder Maximum Range with Continuous Polarization Attenuation Technique

Conventional practical maximum range test for a laser rangefinder system was the extinction ratio method, which installed many density filters in the optical path after the transmitter or before the receiver. In this work, a continuous polarization attenuation technique by employing three polarization elements was demonstrated. This approach provides the benefit of higher attenuation factor and the replacement of optical elements was not required during the measurement.