Abstract: We present a simultaneous WDM and orbital angular momentum (OAM) mode photonic chip multiplexer, and demonstrate data transmission of 8xWDM channels on 2xOAM modes, each carrying 10-Gbit/s ...

Abstract: Light with helical phase wavefront carries orbital angular momentum, a unique feature widening the horizon of optical imaging applicability. Here, we take particular interest in the common ...

UPPSC Prelims Answer Key 2025: The Uttar Pradesh Public Service Commission (UPPSC) has released the UPPSC Prelims Answer Key 2025 on its official website, uppsc.up.nic.in, in the PDF format containing ...