Optical logic operation for and gate based on planar photonic crystal circuit

Kun Yi Lee, Yi Pin Yang, I. Chen Yang, Yi Lung Tsai, Hsin Fu Liao, Yen Juei Lin, Wei Yu Lee, Yao Tsung Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations


For stimulates great developments in high-speed and high-capacity Cloud Computing Technologies (CCT) systems in the future. The all-optical logic gate based on planar photonic crystal (PPC) waveguide is a promising technology. We design an all-optical AND gate in PPC, as an ultracompact component for planar lightwave circuit integration with suitable choice of parameters, perform this task. The PPC waveguides are composed of circular dielectric rods set in two-dimensional triangular lattice. To realize the AND logic function, as predicted using 2D finite-difference time-domain simulations. The combination of the ring and line defect coupler waveguides forms the device. On the basis of our simulations, we found that the optimized scheme maximizes the power transmission above 80% at a wavelength of 1.55 um. Besides, this device can apply to all-optical Arithmetic Logic Unit (ALU) in all-optical computing and potentially applicable for photonic integrated circuits (PICs) in the future.

Original languageEnglish
Title of host publicationOptoelectronic Materials and Devices VI
StatePublished - 2011
EventOptoelectronic Materials and Devices VI - Shanghai, China
Duration: 13 Nov 201116 Nov 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceOptoelectronic Materials and Devices VI


  • All-optical signal processing
  • Logic gate
  • Photonic crystal
  • Photonic integrated circuit


Dive into the research topics of 'Optical logic operation for and gate based on planar photonic crystal circuit'. Together they form a unique fingerprint.

Cite this