Geometrical form factor improvement for receiving system of infrared lidar

Kouki Ikuta, Tsutomu Kudo, Noboru Yoshikane, Nilesh J. Vasa, Yuji Oki, Mitsuo Maeda

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Abstract

Improvement of an infrared light detection and ranging (IR-lidar) system for a short range (0-1000 m) and with high resolution is studied to enhance a geometrical form factor. Theoretical modeling of Mie scattering echo signals agrees with the experimental results. Introduction of a lens in front of the detector is effective for increasing the geometrical form factor, and a significant improvement in the received signal intensity is achieved, especially for short-range measurements around 100 m. This is useful for the IR-lidar system with a detector diameter of less than 1 mm. In the theoretical model, a ray-tracing technique was applied and a transmitting laser beam with Gaussian profile was considered for better accuracy.

Original languageEnglish
Pages (from-to)464-470
Number of pages7
JournalOptical Review
Volume6
Issue number5
DOIs
Publication statusPublished - Jan 1 1999

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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