![Bandwidth-Tunable Filters](https://d27wgn5g4t3wja.cloudfront.net/products/a5ebfea3-c4b6-4b55-b12c-fb72f7b4af01/504265.png)
Bandwidth-Tunable Filters
Through cascading a low-pass tunable edge filter with a long-pass tunable edge filter, one can achieve a new type of bandwidth-tunable filter whose passband width is variable while its center wavelength is still tunable. With such a device, you can