Results 221 to 230 of about 5,116 (261)

The criterions of minimum number of arrayed waveguides for the design of arrayed waveguide gratings

SPIE Proceedings, 2006
The criterions for determining the minimum number of arrayed waveguides are presented using the design theory of arrayed waveguide gratings (AWGs) and Fraunhofer diffraction principle for the optimal design of AWGs. In addition, some parameters such as the cross section of waveguides and the waveguide separation between adjacent waveguides are chosen ...
J. Zhou, Y. K. Zhang, Z. H. Jia, G. L. Ding, H. B. Yao   +4 more
openaire   +1 more source

Packaging experiments of arrayed waveguide grating

Optik, 2018
Abstract The optical characteristics, spectral responses, crosstalk, and temperature characteristics of alignment and coupling between arrayed waveguide grating chip and single mode fibers with different optical channel cross section dimensions are analyzed and discussed in this paper.
Yu Zheng, Jipan Li, PiaoPiao Gao, Ji-an Duan, Bo Chen   +4 more
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Arrayed waveguide gratings for wavelength routing

IEEE Communications Magazine, 1998
Wavelength routing can be performed in the optical domain for both long-haul and passive optical networks. Arrayed waveguide gratings (AWGs) can perform wavelength routing for a large number of optical channels and provide a high level of functionality on an integrated chip. The AWG guides light on a planar lightwave circuit into an array of waveguides
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Aberration theory of arrayed waveguide grating

Journal of Lightwave Technology, 2001
The general aberration theory of arrayed waveguide grating (AWG) is proposed in this paper. The derived conclusions can be applied to any symmetrical AWGs. With the aberration theory, the spectral response can be optimized. Some performances of an AWG, for example, crosstalk and channel number, are expected to be improved by reducing the aberrations. A
null Daoyi Wang, null Guofan Jin, null Yingbai Yan, null Minxian Wu   +3 more
openaire   +1 more source

Arrayed Waveguide Gratings for Astronomical Applications

Advanced Photonics & Renewable Energy, 2010
We discuss the modifications necessary to make a commercially-available telecommunications-grade arrayed waveguide grating more favourable for the field of astronomy. The parameters that are discussed include the free-spectral-range, resolution and diffraction order of the device.
Nick Cvetojevic, Nemanja Jovanovic, Joss Bland-Hawthorn, Roger Haynes, Jon Lawrence   +4 more
openaire   +1 more source

Arrayed Waveguide Grating Technology

Optics and Photonics News, 2002
The capacity of arrayed waveguide gratings (AWGs) has increased dramatically, to the point that as many as 400 channels can now be incorporated into a single wafer. A capacity of 1080 channels with 25-GHz channel spacing has been reported in tandem AWGs with a multichip configuration. Although the total capacity of the transport can be increased to the
openaire   +1 more source

High-performance arrayed waveguide grating

SPIE Proceedings, 2004
Planar technology and design have evolved significantly in the past decade, both in terms of performance and yield, reducing the cost/performance advantage of thin-film filters (TFF) over Array-Waveguide Grating (AWG) devices. This evolution is primarily due to two reasons.
Bart Fondeur, Anca Sala, Sanjay Thekdi, Niranjan Gopinathan, David Nakamoto, Masoud Aghel, Bob Brainard, Anant Vaidyanathan   +7 more
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Analysis and design of arrayed waveguide gratings with MMI couplers

Optics Express, 2001
We present an extension of the AWG model and design procedure described in [1] to incorporate multimode interference, MMI, couplers. For the first time to our knowledge, a closed formula for the passing bands bandwidth and crosstalk estimation plots are derived.
Pascual Munoz, D Pástor, José Capmany   +2 more
exaly   +3 more sources

A novel arrayed-waveguide grating design

SPIE Proceedings, 2005
A novel arrayed-waveguides grating (AWG) used for demultiplexer is proposed. Two graded index planar waveguides (GRIPW) were used for input and output planar waveguide respectively, and the arrayed waveguides were replaced by unbent waveguides that were directly fabricated through UV Written.
Ping Lu, De Ming Liu, Jiang Shan Zhang, Xin Liu   +3 more
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Modeling and design of arrayed waveguide gratings

2010 2nd International Asia Conference on Informatics in Control, Automation and Robotics (CAR 2010), 2010
An efficient and accurate modeling based on Fourier optics is presented to simulate the field propagation in an arrayed waveguide grating (AWG) demultiplexer. A modification is used to improve the accuracy, considering the fourth order quantitative error of the conventional formula.
null Zhiming Liu, null Jian Li
openaire   +1 more source