| 摘要 |
<p>A 2x2 polarization beam splitter (20) comprising two parallel wwaveguides (22, 24) and two crossing waveguides (28, 30) coupled in an X-configuration to the parallel waveguides by four adiabatic Y-junctions (32, 34, 36, 38) which transfer only one of the two orthogonal polarization modes across the junctions, e.g., the TE mode. The crossing waveguides may be of different widths and cross at a very shallow angle (2Υ) so that little cross-talk occurs at the crossing (40).</p> |
