| 摘要 |
Consistent with the present disclosure, a rotator is provided that includes multiple stages, each of which including waveplate and delay sections. The waveplate and delay sections each exhibit birefringence and have polarization eigen states that are tilted with respect to each other. The lengths of the delay and waveplate sections are selected such that, for example, a relatively high extinction ratio can be achieved over a relatively wide range of fabrication perturbations to the waveplates or delay sections and over a relatively wide range of wavelengths. Accordingly, the rotator consistent with the present disclosure is more tolerant of deviations in the optical signal polarization.
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