Fig. 2: Experimental setup to demonstrate the AF-RDV. | Light: Science & Applications

Fig. 2: Experimental setup to demonstrate the AF-RDV.

From: Compact and reciprocal probe-signal-integrated rotational Doppler velocimetry with fiber-sculpted light

Fig. 2

a Experimental setup with two operating schemes. The one is normal scheme that the light source module is connected to port 1 and signal processing module to port 2 (path along with blue arrows). Another is reciprocal scheme that the two modules are exchanged to connect the two ports (path along with red arrows). PC polarization controller, MSC mode-selective coupler, SMF single-mode fiber, MMF multi-mode fiber, Col. collimator, PD photodetector. b, c The measured intensity profiles of typical beams at 1550 nm for each of the two operating schemes

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