Fig. 2: Experimental setup for synthesizing and measuring spatiotemporal phenomena in GRIN MMF. | Nature Communications

Fig. 2: Experimental setup for synthesizing and measuring spatiotemporal phenomena in GRIN MMF.

From: Space-time wave packets in multimode optical fibers with controlled dynamic motions and tunable group velocities

Fig. 2

a Schematics of the experimental setup. A turn-key integrated Kerr comb functions as the source. Five comb lines are selected by a programmable liquid crystal on silicon (LCoS) based wave selective switch (WSS). These frequencies are subsequently separated for spatiotemporal synthesis and reference. The synthesized STWP is coupled to a 1.25-m GRIN MMF. After that, the output from the fiber is collimated again and imaged to the camera together with the reference pulse. b The optical spectrum of 5 comb lines selected by the programmable LCoS WSS filter. c Autocorrelation results of the pulse after the programmable LCoS WSS filter. FHWM: full width at half maximum.

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