Loss characterization of Arrayed Waveguide Grating by Fabry-Perot Interferometric Method

Author(s):  
Songtao Liu ◽  
Xilin Zhang ◽  
Dan Lu ◽  
Ruikang Zhang ◽  
Wei Wang ◽  
...  
Author(s):  
David Sinefeld ◽  
Noam Goldshtein ◽  
Roy Zektzer ◽  
Nahum Gorbatov ◽  
Moshe Tur ◽  
...  

2003 ◽  
Vol 52 (4) ◽  
pp. 1092-1096 ◽  
Author(s):  
P. Niewczas ◽  
L. Dziuda ◽  
G. Fusiek ◽  
A.J. Willshire ◽  
J.R. McDonald ◽  
...  

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Hongqiang Li ◽  
Yaoting Bai ◽  
Xiaye Dong ◽  
Enbang Li ◽  
Yang Li ◽  
...  

Four methods based on a multimode interference (MMI) structure are optimally designed to flatten the spectral response of silicon-on-insulator- (SOI-) based arrayed-waveguide grating (AWG) applied in a demodulation integration microsystem. In the design for each method, SOI is selected as the material, the beam propagation method is used, and the performances (including the 3 dB passband width, the crosstalk, and the insertion loss) of the flat-top AWG are studied. Moreover, the output spectrum responses of AWGs with or without a flattened structure are compared. The results show that low insertion loss, crosstalk, and a flat and efficient spectral response are simultaneously achieved for each kind of structure. By comparing the four designs, the design that combines a tapered MMI with tapered input/output waveguides, which has not been previously reported, was shown to yield better results than others. The optimized design reduced crosstalk to approximately −21.9 dB and had an insertion loss of −4.36 dB and a 3 dB passband width, that is, approximately 65% of the channel spacing.


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