| 摘要 |
<p>The present invention relates to an optical device comprising a wave-guide (30) and a polarization converter, the wave-guide (30) and the polarization converter comprising one common unit, the length of the wave-guide (30) being so choses in relation to the rotation of the polarization-state of an input signal that the device gets independent of the polarization as well as a method for polarization-independent processing of an optical signal. The polarization of the signal is rotated when it goes through a wave-guide (30), the rotation taking place in the wave-guide (30) itself and the length of the wave-guide (30) being so chosen that the processing of the signal gets independent of polarization-state upon incidence.</p> |
