scholarly journals Compact and low insertion loss (~10 dB) Mach-Zehnder interferometer-synchronized arrayed-waveguide grating multiplexer with flat-top frequency response

2008 ◽  
Vol 16 (21) ◽  
pp. 16546 ◽  
Author(s):  
Tomohiro Shibata ◽  
Shin Kamei ◽  
Tsutomu Kitoh ◽  
Takuya Tanaka ◽  
Masaki Kohtoku
Keyword(s):  
Frequency Response ◽  
Insertion Loss ◽  
Zehnder Interferometer ◽  
Arrayed Waveguide Grating ◽  
Waveguide Grating ◽  
Low Insertion Loss ◽  
Arrayed Waveguide ◽  
Mach Zehnder Interferometer

Very low insertion loss arrayed-waveguide grating with vertically tapered waveguides

2000 ◽  
Vol 12 (9) ◽  
pp. 1180-1182 ◽  
Author(s):  
A. Sugita ◽  
A. Kaneko ◽  
K. Okamoto ◽  
M. Itoh ◽  
A. Himeno ◽  
...  
Keyword(s):  
Insertion Loss ◽  
Arrayed Waveguide Grating ◽  
Waveguide Grating ◽  
Low Insertion Loss ◽  
Tapered Waveguides ◽  
Arrayed Waveguide

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.

Design and Simulation of Arrayed Waveguide Grating for Miniature Raman Spectrometer

2014 ◽  
Vol 644-650 ◽  
pp. 3588-3592
Author(s):  
Ying Chao Xu ◽  
Qing Na Wang ◽  
Wen Zhang Zhu
Keyword(s):  
Wavelength Division Multiplexing ◽  
Insertion Loss ◽  
Phase Error ◽  
Optical Channel ◽  
Arrayed Waveguide Grating ◽  
Waveguide Grating ◽  
Raman Spectrometer ◽  
Technical Requirements ◽  
Arrayed Waveguide ◽  
Miniature Raman Spectrometer

Arrayed waveguide grating (AWG) is a very popular dense wavelength division multiplexing (DWDM) device, which is produced in the field of optical communication technology. Instead of traditional grating and lens spectral system, AWG is used as the spectral chip in miniature Raman spectrometer. It’s quite important for miniature Raman spectrometer in miniaturization and low cost. This paper analyzed the basic principles of AWG device, and introduces the insertion loss, crosstalk and phase error performance parameters, also focuses on the specific technical requirements about wavelength, optical channel number, phase error, wavelength resolution and bandwidth, which are applied in miniature Raman spectrometer. Some new researches and a series of related simulation have been made, finally won the 1 * 40 channels AWG spectral chips, with wavelength range of 880-920 nm, insertion loss of center wavelengths is better than-0.9 dB.

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