Fig. 21: Beam-forming and beam-steering results in176. | npj Nanophotonics

Fig. 21: Beam-forming and beam-steering results in176.

From: Progress and prospects for LiDAR-oriented optical phased arrays based on photonic integrated circuits

Fig. 21

a \({\theta }_{Y}\) cut of the far-field beam pattern achieved with both amplitude and phase optimization; (b, c) 9 incidences and their performance indicators of steered beam, [i] the beam-width measured in FWHM, [ii] the side-lobe suppression ratio, [iii] beam-forming loss reported as main-lobe power concentration, [iv] additional loss due to amplitude modulation with integrated variable optical attenuators.

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