1. SIMULATION TOOLS FOR PHOTONIC CRYSTAL FIBER*
Cho-Kuen Ng, Lie-Quan Lee, Greg Schussman, SLAC
Parallel FE EM Code Suite ACE3P
Defect Mode & Damping – Omega3P
ACE3P: Parallel Finite Element EM Code Suite (Advanced Computational Electromagnetics, 3D, Parallel)
ACE3P Module Accelerator Physics Application
Frequency Domain: Omega3P – Eigensolver (w/ damping)
S3P – S-Parameter
Time Domain: T3P – Transients & Wakefields
Pic3P – Particle-In-Cell (self-consistent)
Particle Tracking: Track3P – Dark Current and Multipacting
Multi-Physics: TEM3P – EM-Thermal-Mechanical
f= MHz/a, k=8.184/a
e = 2.13 Ez
rc = 0.52a
ra = 0.35a
Defect Mode
Lin PBG fiber
Side Coupling
k = 8.18/a; Q = 1,108,000
k = 8.18/a; Q = 191,000
Key strengths:
Fidelity - Tetrahedral conformal mesh with quadratic surface
Accuracy - Higher-order finite elements (p = 1-6)
Speed & size - Massively parallel computing
Side coupling
dense
w/o waveguide
w/ waveguide
PCF Coupler – S3P
Defect Mode Radiation – T3P
Scattered field
Solve for defect mode using Omeg3P
Launch defect mode on PBG fiber port in T3P
Evaluate power flow of scattered field at far distance
E field
B field
Defect mode driven here
Port Mode
Excitation of defect mode
Solve for port mode at a specified frequency using a 2D eigensolver
Load port modes onto coupler ports for S3P to determne scattering properties
E field
Snapshot of electric field
Snapshot of scattered field power
* Work supported by .US Department of Energy under contract DE-AC02-76SF00515.