Several picosecond NOR gates operating without Fabry-Perot cavity are described in GaAs, CdTe and CdSe, based on the induced picosecond absorption by electron-hole plasma. The realization of picosecond optical inverter gates is discussed.
J. H. Collet,
"Many-Input Picosecond NOR Gate Without Fabry-Perot Cavity", Proc. SPIE 0963, Optical Computing '88, (8 February 1988); doi: 10.1117/12.947876; https://doi.org/10.1117/12.947876