Add/drop filter using in-plane slanted gratings in azo polymers.
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 degrees 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.
Karimi-Alavijeh
Hamidreza
H
Photonics Laboratory, Department of Electrical Engineering, School of Engineering, Shiraz University, Shiraz, Iran.
Baghban
Mohammad-Amin
MA
Parsanasab
Gholam-Mohammad
GM
Sarailou
Edris
E
Gharavi
Alireza
A
Javadpour
Sirus
S