XVI International Workshop on  Optical Waveguide Theory and Numerical Modelling    Copenhagen, Denmark April 27-28, 2007      Important Dates are  November 1st 2006 -  Submission Open  January 31st 2007 - Deadline for Submissions  February 28th 2007 - Decision about Approval     March 14th 2007 - Reduced Fee Registraton                                           July 15th 2007 - The deadline for Optical and Quantum                                                                          Electronics Special Issue Submission   The workshop is to be held in conjunction with the European Conference on Integrated Optics ECIO2007