Optical wavelength router using arrayed-waveguide grating

2000 ◽  
Author(s):  
Guoping Zhang ◽  
Yanping Li ◽  
Ge Xia ◽  
Qi Lin ◽  
Huamei Tian ◽  
...  
Keyword(s):  
Arrayed Waveguide Grating ◽  
Waveguide Grating ◽  
Wavelength Router ◽  
Optical Wavelength ◽  
Arrayed Waveguide

scholarly journals Compact wavelength router based on a Silicon-on-insulator arrayed waveguide grating pigtailed to a fiber array

2006 ◽  
Vol 14 (2) ◽  
pp. 664 ◽  
Author(s):  
P. Dumon ◽  
W. Bogaerts ◽  
D. Van Thourhout ◽  
D. Taillaert ◽  
R. Baets ◽  
...  
Keyword(s):  
Silicon On Insulator ◽  
Arrayed Waveguide Grating ◽  
Fiber Array ◽  
Waveguide Grating ◽  
Wavelength Router ◽  
Arrayed Waveguide

scholarly journals Generalization of an Optical ASA Switch

2019 ◽  
Vol 9 (6) ◽  
pp. 1096
Author(s):  
Bey-Chi Lin
Keyword(s):  
Positive Integer ◽  
Optical Switches ◽  
Wavelength Converters ◽  
Arrayed Waveguide Grating ◽  
Waveguide Grating ◽  
Promising Technology ◽  
Wavelength Channel ◽  
Wavelength Router ◽  
Total Capacity ◽  
Arrayed Waveguide

An arrayed waveguide grating (AWG) is a kind of passive wavelength router, and it is the most promising technology for developing large optical switches. However, AWGs have poor scalability, and using small AWGs to construct a large switch has been done in many prior works. A novel AWG-based switch called ASA (AWG, Space switching, AWG) that does not use wavelength converters has been proposed. It can expand the switch size from N to N2 by using N × N AWGs. In this paper, we generalize the ASA switch by using only N × N AWGs, N × N space switches, and N wavelengths such that the switch size is expanded to Nt for any positive integer t. Since each port of an N × N AWG can transmit up to N wavelengths simultaneously, the total capacity of the generalized ASA switch is extended to be close to Nt+1 × the bandwidth of a wavelength channel, provided that the inputs which are located in the same port position of each input AWG are destined to distinct outputs.

scholarly journals Optimal Design of an Ultrasmall SOI-Based 1 × 8 Flat-Top AWG by Using an MMI

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Hongqiang Li ◽  
Yaoting Bai ◽  
Xiaye Dong ◽  
Enbang Li ◽  
Yang Li ◽  
...  
Keyword(s):  
Insertion Loss ◽  
Spectral Response ◽  
Beam Propagation Method ◽  
Silicon On Insulator ◽  
Optimized Design ◽  
Arrayed Waveguide Grating ◽  
Channel Spacing ◽  
Waveguide Grating ◽  
Passband Width ◽  
Arrayed Waveguide

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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