Optical signal quality monitor built into WDM linear repeaters using semiconductor arrayed waveguide grating filter monolithically integrated with eight photodiodes

1999 ◽  
Vol 35 (10) ◽  
pp. 836 ◽  
Author(s):  
H. Suzuki ◽  
N. Takachio
1997 ◽  
Vol 33 (22) ◽  
pp. 1890 ◽  
Author(s):  
T. Kurokawa ◽  
H. Tsuda ◽  
K. Okamoto ◽  
K. Naganuma ◽  
H. Takenouchi ◽  
...  

2000 ◽  
Vol 6 (6) ◽  
pp. 124 ◽  
Author(s):  
Hirokazu Takenouchi ◽  
Hiroyuki Tsuda ◽  
Takashi Kurokawa

2013 ◽  
Author(s):  
Robinson C. Guzmán M. ◽  
Álvaro Jimenez ◽  
Katarzyna Lawniczuk ◽  
Antonio Corradi ◽  
Xaveer J. M. Leijtens ◽  
...  

2011 ◽  
Vol 5 (5) ◽  
pp. 207-210 ◽  
Author(s):  
P. Muñoz ◽  
J. Capmany ◽  
T. de Vries ◽  
R. García-Olcina ◽  
C. Habib ◽  
...  

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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