Type: Article
Add/drop filter using in-plane slanted gratings in azo polymers
Journal: Optics Letters (01469592)Year: 15 September 2008Volume: 33Issue: Pages: 2152 - 2154
DOI:10.1364/OL.33.002152Language: English
Abstract
We have fabricated in-plane slanted gratings on azo-functionalized polymeric films using a fast, direct-writing method. By properly adjusting the resonance, these gratings can be used as 90° integrated reflectors and add/drop filters in the plane of the film. We have produced an attenuation of 14.8 dB at 1560.2 nm with a FWHM of 6.47 nm. Also, a signal of 1548 nm wavelength was added to the output from a different direction. Any light shifted from the resonance will pass through the filter undisturbed. © 2008 Optical Society of America.