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Dedicated Synthesis for MZI-based Optical Circuits based on AND-Inverter Graphs

Arighna Deb; Robert Wille; Rolf Drechsler
In: International Conference on Computer Aided Design (ICCAD). IEEE/ACM International Conference on Computer-Aided Design (ICCAD-2017), November 13-16, Irvine, CA, USA, 2017.


Optical circuits received significant interest as apromising alternative to existing electronic systems. Because ofthis, also the synthesis of optical circuits receives increasing atten-tion. However, initial solutions for the synthesis of optical circuitseither rely on manual design or rather straight-forward mappingsfrom established data-structures such as BDDs, SoPs/ESoPs,etc. to the corresponding optical netlist. These approaches hardlyutilize the full potential of the gate libraries available in thisdomain. In this paper, we propose an alternative synthesissolution based onAND-Inverter Graphs(AIGs) which is capableof utilizing this potential. That is, a scheme is presented whichdedicatedly maps the given function representation to the desiredcircuit in a one-to-one fashion – yielding significantly smallercircuit sizes. Experimental evaluations confirm that the proposedsolution generates optical circuits with up to 97% less numberof gates as compared to existing synthesis approaches.