@article { jaeger2008c, title = {Asymmetrically Strained Ridge Waveguide for Passive Polarization Conversion}, journal = {IEEE Photonics Technology Letters}, volume = {20}, year = {2008}, month = {12/2008}, pages = {2186-2188}, author = {J. D. Bull and H. Kato and N. A. F. Jaeger} }