Design and realization of a polarized laser fuze without blind area

In traditional pulsed laser fuze systems, the emission and receiving optical systems are independent, causing a blind area, and they have little capacity to resist cloud and interference. To solve these problems, a polarized laser fuze without blind area was designed based on the polarized property of laser. For the new laser fuze, a polarized beam splitter was used to realize a mode in which the emitter and receiver use the same aperture. At the same time, its anti-interference capacity was improved by using a nanosecond laser as emitting source. An experimental system was established, in which 1064 nm polarized laser with pulse duration of 1 ns was used, and a photodetector was used as the receiver. The echo characteristics of different objects within the range of 1 m were obtained.