Fig. 2: Simulated and experimental results of the metamaterial BB. | Light: Science & Applications

Fig. 2: Simulated and experimental results of the metamaterial BB.

From: Metamaterial-enabled arbitrary on-chip spatial mode manipulation

Fig. 2

a, b Calculated mode purity and coupling coefficients as a function of the propagation distance for the TE0 and TE2 input mode, respectively. c Microscope picture of the fabricated photonic integrated circuit (PIC) consisting a 3-channel mode multiplexer (MUX), a TE0-TE2 mode operator, and a 3-channel mode demultiplexer (DeMUX). d Scanning electron microscope (SEM) image of a fabricated metamaterial TE0-TE2 BB. e, f Simulated and measured mode conversion efficiency for the TE0 and TE2 input mode, respectively. The crosstalk from the TE1 mode is below −25 dB in simulation, thus not shown in both figures

Back to article page