Reduction of chromatic dispersion due to coupling for synchronized-router-based flat-passband filter using multiple-input arrayed waveguide grating.
Opt Express
; 17(24): 22260-70, 2009 Nov 23.
Article
in En
| MEDLINE
| ID: mdl-19997474
An approach to reducing the chromatic dispersion due to coupling between input waveguides before the input slab for a synchronized-router-based flat-passband filter using a multiple-input arrayed waveguide grating (AWG) is proposed. The proposed method uses phase compensation at the waveguide array of the AWG by correction of waveguide lengths. The characteristics of the flat-passband filter that consists of a multiple-input AWG combined with cascaded Mach-Zehnder interferometers (MZIs) are simulated using a theoretical model of the multiple-input AWG based on Fourier optics and the coupled-mode theory. The simulation result reveals that the chromatic dispersion within the passband can be significantly reduced by using phase compensation and additional dummy waveguides at the input just before the slab.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Prognostic_studies
Language:
En
Journal:
Opt Express
Journal subject:
OFTALMOLOGIA
Year:
2009
Document type:
Article
Affiliation country:
Japan
Country of publication:
United States