Design and Optimization of an Athermal Asymmetric All-Polymer Arrayed Waveguide Grating

Li, De-Lu; Ma, Chunsheng; Wang, Yuhai; Zhang, Daming

doi:10.1142/s021798490801478x

Mod. Phys. Lett. B

2008

DOI: 10.1142/s021798490801478x

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Design and Optimization of an Athermal Asymmetric All-Polymer Arrayed Waveguide Grating

De-Lu Li

Chunsheng Ma

Yuhai Wang

et al.

Abstract: This study demonstrates a novel athermal asymmetric arrayed waveguide grating (AWG), which is composed of polymer waveguides on a polymer substrate. The temperature-dependent wavelength shift of the AWG depends on the refractive indices of the polymer materials and the coefficient of thermal expansion (CTE) of the polymer substrate. The athermalization of the AWG can be realized by the selection of the polymer materials and the structural parameters of the waveguide and the substrate.

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Cited by 3 publications

References 15 publications

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Encapsulated grating for three-port beam splitter in reflection

Shu

Wang

et al. 2016

Mod. Phys. Lett. B

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An encapsulated grating with a metal slab is designed as a reflection three-port beam splitter at the wavelength of 1550 nm under normal incidence. Such a new grating is aimed to separate energies into the ±1st and the 0th orders for both TE and TM polarizations. The grating parameters such as grating period, duty cycle and grating depth are optimized by using rigorous coupled-wave analysis. Based on optimized grating parameters, efficiencies can reach more than 32% with the polarization-independent property. It indicates that reflection three-port beam splitter with high efficiency can be obtained by the encapsulated grating. Moreover, the presented reflection three-port grating has advantages of wide incident wavelength range and angular bandwidth, which would be useful in practical application.

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Encapsulated grating for three-port beam splitter in reflection

Shu

Wang

et al. 2016

Mod. Phys. Lett. B

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show abstract

Reflection performance research of grating with polarization independence based on a sandwiched structure

et al. 2018

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The novel reflective grating was studied under Littrow incidence as one sort of high-efficiency optical element. A covering layer and a dielectric layer are employed in this structure to achieve higher efficiency and wider bandwidth. For the given wavelength of 1550 nm, by using two-beam-interference theory of modal method, duty cycle and period of grating can be calculated, where the physical essence of high efficiency in the first-order is well explained by the modal method. The other grating parameters are optimized by using rigorous coupled-wave analysis. The optimized grating has an appropriate aspect ratio and shows that diffraction efficiencies of TE and TM polarizations in the first-order are greater than 97%. Compared with the reported surface-relief high-efficiency grating, the diffraction efficiencies of the proposed grating for TE and TM polarizations can be greatly improved.

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A quantum method for dynamic nonlinear programming technique using Schrödinger equation and Monte Carlo approach

Kaur

Dhiman

2018

Mod. Phys. Lett. B

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The power of quantum computing may allow for solving the problems which are not practically feasible on classical computers and suggest a considerable speed up to the best known classical approaches. In this paper, we present the contemporary quantum behaved approach which is based on Schrödinger equation and Monte Carlo method. The three basic steps of proposed technique are also mathematically modeled and discussed for effective movement of particles. The performance of the proposed approach is tested for solving the dynamic nonlinear problem. Experimental results reveal the supremacy of proposed approach for solving the nonlinear problem as compared to other approaches.

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Design and Optimization of an Athermal Asymmetric All-Polymer Arrayed Waveguide Grating

Cited by 3 publications

References 15 publications

Encapsulated grating for three-port beam splitter in reflection

Encapsulated grating for three-port beam splitter in reflection

Reflection performance research of grating with polarization independence based on a sandwiched structure

A quantum method for dynamic nonlinear programming technique using Schrödinger equation and Monte Carlo approach

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