RT - Journal Article T1 - A New Proposal for 4-to-2 Optical Encoder Using Nonlinear Photonic Crystal Ring Resonators JF - ijop YR - 2019 JO - ijop VO - 13 IS - 2 UR - http://ijop.ir/article-1-333-en.html SP - 119 EP - 126 K1 - Kerr effect K1 - Optical encoder K1 - Photonic bandgap K1 - Photonic crystal. AB - In this paper, we proposed an all optical 4-to-2 encoder that has 4 input and 3 output ports. This device generates a 2 bit binary code based on which input port is active. We used nonlinear photonic crystal ring resonators along with optical power splitter for realizing the proposed encoder. In this device the switching rate and area are obtained about 333 GHz and 612µm2 respectively. LA eng UL http://ijop.ir/article-1-333-en.html M3 10.29252/ijop.13.2.119 ER -