Frequency Response of Silicon-Clad Proton-Exchanged Channel Waveguides

Wu, Jijiang; Shi, Bangren

doi:10.1163/156939311794827122

Cited by 2 publications

(3 citation statements)

References 16 publications

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“…The length of the ith segment is S i and its center is at point (x i , y i ). For both polarizations, the field distribution E image (x , z ) at the image plane can be obtained by scanning over the surface of the output waveguide using Equations (11) and (12). When the output waveguide is of single-mode, the spectral response for a certain output channel can be approximated with the following overlap integral,…”

Section: Simulation Methodsmentioning

confidence: 99%

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Planar Grating Multiplexers Using Silicon Nanowire Technology: Numerical Simulations and Fabrications

Song¹,

Li²,

Zhou³

et al. 2012

PIER

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Abstract-Planar waveguide gratings have shown great potential for the application of the wavelength division multiplexing (WDM) functionality in optical communications due to their compactness and high spectral finesse. Planar gratings based on silicon nanowire technology have high light confinements and consequently very high integration density, which is 1-2 orders of magnitude smaller than conventional silica based devices. In the present paper, we will simulate the silicon nanowire based planar grating multiplexer with total-internal-reflection facets using a boundary integral method. The polarization dependent characteristics of the device are analyzed. In addition, the planar grating multiplexer with 1 nm spacing is fabricated and characterized. Compared with measured values, the numerical results show that the sidewall roughness in the grating facets can result in a large insertion loss for the device.

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Section: Simulation Methodsmentioning

confidence: 99%

“…To stay with silicon, as it is the most popular material for modern microelectronics, silicon based nanowire waveguides were introduced, formed as silicon strips on a silica layer. A very high contrast of refractive index in all directions allows for high light confinement and consequently very high integration density [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Planar Grating Multiplexers Using Silicon Nanowire Technology: Numerical Simulations and Fabrications

Song¹,

Li²,

Zhou³

et al. 2012

PIER

View full text Add to dashboard Cite

show abstract

“…Particularly, the rigorous coupled-wave analysis (RCWA) [14] is an effective numerical method for simulating the polarization-dependent diffraction property from a planar grating. Up till now, most references to the rigorous analysis of diffraction devices have implicitly assumed infinitely periodic elements [15][16][17][18], for which the eigenfunctions are known and used in an eigenfunction expansion of the diffracted fields.…”

Section: Introductionmentioning

confidence: 99%

A Fast Simulation Method of Silicon Nanophotonic Echelle Gratings and Its Applications in the Design of on-Chip Spectrometers

Song¹,

Chen²,

Li³

2013

PIER

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Abstract-Due to their very high integration density, echelle grating spectrometers based on silicon nanophotonic platforms have received great attention for their applications in many areas, such as optical sensors, optical communications, and optical interconnections. The design of echelle gratings requires an effective modeling and simulation technique. Though we have used a boundary integral method to accurately analyze the polarization-dependent performance of the echelle grating, it is complicated and time-consuming for the simulation due to its large size and aperiodic structure. In the present paper, we will present a faster simulation method for the grating with twice total internal reflection facets based on a modified Kirchhoff-Huygens principle with the influence of the Goos-Hänchen shift considered. On the one hand, the presented simulation results agree well with our previous results obtained by the boundary integral method when the shift can accurately be calculated using a FDTD method. On the other hand, the biggest advantage of the new method over the existing methods is that it can also provide an insightful physical explanation for many numerical results. Finally, we will effectively apply the present method to design an on-chip spectrometer with very low noise floor.

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Frequency Response of Silicon-Clad Proton-Exchanged Channel Waveguides

Cited by 2 publications

References 16 publications

Planar Grating Multiplexers Using Silicon Nanowire Technology: Numerical Simulations and Fabrications

Planar Grating Multiplexers Using Silicon Nanowire Technology: Numerical Simulations and Fabrications

A Fast Simulation Method of Silicon Nanophotonic Echelle Gratings and Its Applications in the Design of on-Chip Spectrometers

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