TY - JOUR
AU1 - Shaik, Enaul
AU2 - Rangaswamy, Nakkeeran
AB - We present a MMI-based photonic crystal all-optical logic gate structure for logic functions such as XNOR, XOR, OR and NAND with square-type lattice of Si rods in air host. Phase-based logic inputs produce intensity-based logic outputs with high contrast ratio. The calculated ON to OFF contrast ratio for the logic functions XNOR/XOR and OR/NAND is 40.41 and 37.40 dB, respectively. Further, it is improved by 11.53 and 12.46% for XNOR/XOR and OR/NAND logic functions, respectively, by reducing the back reflection with the introduction of absorbing waveguides. The structure in both the forms has a fast response period that is less than or equal to 0.131 ps. The size of the structure is quite compact with dimension 
$$6.4\,\upmu \hbox {m} \times 8.8\,\upmu \hbox {m}$$



6.4

μ
m
×
8.8

μ
m



.
TI - Multi-mode interference-based photonic crystal logic gates with simple structure and improved contrast ratio
JF - Photonic Network Communications
DO - 10.1007/s11107-016-0683-7
DA - 2017-01-07
UR - https://www.deepdyve.com/lp/springer-journals/multi-mode-interference-based-photonic-crystal-logic-gates-with-simple-pcDZIBd2G6
SP - 140
EP - 148
VL - 34
IS - 1
DP - DeepDyve
ER -