We propose a structurally adaptive multilayer ring-core optical fiber design for hybrid optoelectronic sensing and control in compact fiber-cable links.The architecture features a protected central single-mode channel for data transmission, an auxiliary ring channel for sensing, and a programmable ring channel whose optical transmission can be electrically tuned via an adjacent conductor structure coupled to an active material region.We create a modeling workflow to evaluate channel isolation, electrode placement, and the feasibility of electrically driven actuation in the telecom band, as well as to identify practical design settings for multifunctional operation.The numerical results show that selective control of the programmable ring channel is possible while maintaining the integrity of the data backbone and sensing channel, supporting the use of such fibers as integrated tethers for robotics and distributed sensing systems.
Angelsky et al. (Thu,) studied this question.