In this paper, a factor reflecting the uniformity and the efficiency of grating beam splitting is introduced, moreover the scalar diffraction calculation method combined with the Gerchberg-Saxton iterative algorithm and the simulated annealing algorithm is proposed. Using this method, we iteratively obtain the optimal grating phase distribution by minimizing the factor, and a 16×4 beam splitting DOE with 86.3% efficiency and 92% uniformity is designed which has been successfully applied in 3-D imaging Lidar. The design method discussed in this paper provides new ideas for high-precision multi-beam Lidar and has better engineering application value.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.