Figure 1. Orbital Angular Momentum Multiplexer/Demultiplexer (IMAGE)

Tokyo Institute of Technology

Figure 1. Orbital Angular Momentum Multiplexer/Demultiplexer

Caption

The multiplexing/demultiplexing module fabricated (a,d) employs a property of light called the "optical vortex" to transmit/receive multiple signals simultaneously through a shared optical medium. The required light waves with different optical vortexes are generated using a combination of a star coupler (b) and an optical-vortex generator (c).

Credit

The Optical Networking and Communication Conference & Exhibition 2019

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