Share Email Print

Proceedings Paper

The designs of 4×2 encoder based on photonic crystals
Author(s): Kun-Yi Lee; Yi-Cheng Yang; Yen-Juei Lin; Wei-Yu Lee; Cheng-Che Lee; Sheng-Hsien Wong
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

All-optical logic gate is a basic and crucial element for optical signal processing. In this paper, we propose a 4×2 encoder based on two dimensional triangular lattice photonic crystals composed of cylindrical silicon rods. The main structure of the device is a combination of both line defect Y branch and coupler photonic crystal waveguides. The computational simulation is carried out by using a finite-difference time-domain (FDTD) method. The simulation results show that the proposed all-optical photonic crystal waveguide structure could really function as a 4×2 encoder logic gate. In addition, the distance between coupler photonic crystal waveguides, the length of coupler waveguides and the distance between line defect Y branch waveguide structure are optimized for achieving the optimal performance for the proposed encoder logic gates. This device is potentially applicable for photonic integrated circuits.

Paper Details

Date Published: 1 December 2009
PDF: 7 pages
Proc. SPIE 7630, Passive Components and Fiber-based Devices VI, 76300I (1 December 2009); doi: 10.1117/12.852155
Show Author Affiliations
Kun-Yi Lee, China Univ. of Science and Technology (Taiwan)
Yi-Cheng Yang, National Taipei Univ. of Technology (Taiwan)
Yen-Juei Lin, China Univ. of Science and Technology (Taiwan)
Wei-Yu Lee, China Univ. of Science and Technology (Taiwan)
Cheng-Che Lee, China Univ. of Science and Technology (Taiwan)
Sheng-Hsien Wong, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7630:
Passive Components and Fiber-based Devices VI
Perry P. Shum, Editor(s)

© SPIE. Terms of Use
Back to Top