1. Polarisation-insensitive arrayed-waveguide grating wavelength multiplexer on silicon;Takahashi;Opt. Lett.,1992
2. Ch. Nadler, M. Lanker, E. Wildermuth, W. Hunziker, H. Melchior, Polarisation insensitive wavelength multiplexers using stress release grooves, Proceedings of European Conference on Optical Communications (ECOC'98), Madrid, Spain, 1998, p. 367
3. J. Albert, F. Bilodeau, D.C. Johnson, K.O. Hill, S.J. Mihailov, D. Strychman, Polarisation independent strong Bragg gratings in planar lightwave circuits from ArF laser irradiation through a phase mask, OSA Proceedings of Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides: Applications and Fundamentals, Williamsburg, USA, 1997
4. Birefringence compensation improved fringe contrast and trimming in an integrated asymmetric Mach-Zehnder interferometer using mid-IR laser processing;Canning;Opt. Mater.,2000
5. Kawachi, et al., Single-mode channel waveguide with a stress-induced birefringence control region, US patent no. 4781424, 1988