Useful simulation tools for planar waveguides and fibers:

FIMMWAVE  (Photon design) http://www.photond.com/products/fimmwave.htm
Optiwave http://www.optiwave.com/
Rsoft http://www.rsoftdesign.com/
Lumerical http://www.lumerical.com/
EMFlex http://www.wai.com/emflex.aspx
FreeBPM http://www.freebpm.com/
SMU Waveguide http://lyle.smu.edu/ee/smuphotonics/WAVEGUIDE/Main_Waveguide.htm
MIT Photonic-Bands (MIT) http://ab-initio.mit.edu/wiki/index.php/MIT_Photonic_Bands
Comsol http://www.comsol.com/industry/application/rf/po/
SMTP v2.0 (The source-model technique package) http://webee.technion.ac.il/leviatan/smtp/index.htm

Reference:
http://www.nusod.org/inst/software.html
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