Open AccessProposal for 4‐to‐2 optical encoder based on photonic crystals
Author(s) -
Mehdizadeh Farhad,
Soroosh Mohammad,
AlipourBanaei Hamed
Publication year - 2017
Publication title -
iet optoelectronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.379
H-Index - 42
eISSN - 1751-8776
pISSN - 1751-8768
DOI - 10.1049/iet-opt.2016.0022
Subject(s) - encoder , rotary encoder , computer science , footprint , electronic engineering , port (circuit theory) , binary number , computer hardware , photonics , xor gate , code (set theory) , logic gate , optoelectronics , engineering , algorithm , materials science , arithmetic , mathematics , operating system , paleontology , set (abstract data type) , biology , programming language
In this study, an all optical 4‐to‐2 encoder have been proposed which has four input and three output ports. The proposed structure can generate a 2‐bit binary code considering which input port is active. For realising the proposed structure first the authors proposed and designed a BUFFER and an OR gate. Then combined these basic gates to realise the proposed encoder. The maximum switching delay and footprint for the proposed structure are about 200 fs and 880 μm 2 , respectively.