Engineering
Advances in All-Optical Circuits
New photonic temporal integrators could push past some of the processing-speed limitations of electronic approaches.
Photonic integrator based on an active Fabry-Perot cavity. [Ming Li, IS-CAS]
All-optical signal processing attracts much attention because of its potential to overcome the bandwidth and speed bottlenecks of electronic circuits. Many all-optical signal processing techniques already show up in a wide range of applications, like ultrafast telecommunications, optical computing, microwave photonics and biophotonics. These techniques offer processing bandwidths up to several THz—significantly faster than their electronic counterparts.
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