Abstract
Bandpass filters based on birefringent plates employed in optical communications and sensing for channel dropping are considered. A filter with a flat-top passband is designed based on the configuration of the Lyot birefringent filter. A genetic algorithm is employed for the optimization of the flat-top passband. Compared to the traditional Lyot birefringent filter, the designed filter has a wider bandwidth, sharp transition and low crosstalk. The fabrication tolerance is also discussed.
| Original language | English |
|---|---|
| Article number | 006 |
| Pages (from-to) | 652-656 |
| Number of pages | 5 |
| Journal | Journal of Optics A: Pure and Applied Optics |
| Volume | 8 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 Aug 2006 |
Keywords
- Birefringent filters
- Flat-top passband
- Generic algorithm
- Lyot filter