Observation of large parity-change-induced dispersion in triangular-lattice photonic crystal waveguides using phase sensitive techniques

2006 ◽  
Vol 88 (7) ◽  
pp. 071111 ◽  
Author(s):  
Jiandong Huang ◽  
Charles M. Reinke ◽  
Aliakbar Jafarpour ◽  
Babak Momeni ◽  
Mohammad Soltani ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Triangular Lattice ◽  
Photonic Crystal Waveguides ◽  
Phase Sensitive ◽  
Parity Change

Photonic Crystal Tapers for Coupling Large Ridge Waveguides to Photonic Crystal Waveguides

2003 ◽  
Vol 797 ◽  
Author(s):  
Francis C. Ndi ◽  
Jean Toulouse
Keyword(s):  
Photonic Crystal ◽  
Triangular Lattice ◽  
Coupling Efficiency ◽  
Ridge Waveguide ◽  
Photonic Crystal Waveguide ◽  
Photonic Crystal Waveguides ◽  
Taper Angle ◽  
Dimensional Photonic Crystal ◽  
Ridge Waveguides ◽  
Small Footprint

ABSTRACTWe present a study of various photonic crystal taper structures each characterized by the taper angle and roughness for coupling light into 2-dimensional photonic crystal waveguides from large ridge waveguides. The photonic crystal waveguide is made of a triangular lattice of holes in a dielectric. The objective is to find a taper structure that offers the best coupling efficiency over a range of widths of the ridge waveguide while leaving a small footprint. We show that such a structure indeed exists and can be further optimized as the width of the ridge waveguide gets even larger leading to more than 90% increase in coupling efficiency in some cases.

Modes Excitation in Five-Mode Photonic Crystal Waveguides of Triangular Lattice

2012 ◽  
Vol 531-532 ◽  
pp. 196-199
Author(s):  
Xiao Yan Shi ◽  
Wu Yang ◽  
Hua Yang ◽  
Xiu Ze Wang
Keyword(s):  
Photonic Crystal ◽  
Field Intensity ◽  
Intensity Distribution ◽  
Triangular Lattice ◽  
Waveguide Mode ◽  
Zero Field ◽  
Photonic Crystal Waveguides ◽  
Input Field ◽  
Difference Time ◽  
Field Intensity Distribution

We study modes excitation with input field of different positions in five-mode photonic crystal waveguides of triangular lattice. The five-mode photonic crystal waveguides is formed by removing five rows rods in 2D photonic crystals of a triangular lattice of dielectric rods in air. The 0th mode, the 1st mode and the 2nd modes are selectively excited. The input field with different positions can excite different modes due to the field intensity distribution of modes. When the input field locates at the position of the zero field intensity of the waveguide mode, the mode can not be excited. The superposition of different modes can leads to different field intensity distribution. The finite-difference time-domain method is used to obtain the excited field distributions.

scholarly journals Phase-sensitive amplification in silicon photonic crystal waveguides

2014 ◽  
Vol 39 (2) ◽  
pp. 363 ◽  
Author(s):  
Yanbing Zhang ◽  
Chad Husko ◽  
Jochen Schröder ◽  
Simon Lefrancois ◽  
Isabella H. Rey ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Waveguides ◽  
Silicon Photonic ◽  
Phase Sensitive ◽  
Phase Sensitive Amplification
Sign in / Sign up

Export Citation Format

Share Document