Fig. 4: Source interfacing waveguides. | Light: Science & Applications

Fig. 4: Source interfacing waveguides.

From: Free-standing microscale photonic lantern spatial mode (De-)multiplexer fabricated using 3D nanoprinting

Fig. 4

a Waveguide transition from the 7-core fiber plane to the Mux input plane. b Visualization of the S-shaped curves with different m parameters. c Visualization of the taper’s shapes with different n parameters. d Side view of the pitch and diameter reducing waveguide, with its FDTD simulated light propagation and input/output mode distributions

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