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Journal ArticleDOI

0.1 dB/cm waveguide losses in single-mode SOI rib waveguides

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TLDR
In this article, the SOI rib waveguides fabricated by wet chemical etching have been shown to have field mismatch losses as low as 0.1 dB/cm at a wavelength of /spl lambda/=1.3 /spl mu/m.
Abstract
Waveguide losses as low as 0.1 dB/cm at a wavelength of /spl lambda/=1.3 /spl mu/m have been achieved in SOI rib waveguides fabricated by wet chemical etching. The single-mode waveguides have a large cross section yielding field mismatch losses to a standard single-mode fiber of only 0.17 dB/facet (both polarizations). Polarization independent fiber-chip-fiber insertion losses of 0.9 dB (best 0.5 dB) at a chip length of 60 mm have been measured.

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Guiding, modulating, and emitting light on Silicon-challenges and opportunities

TL;DR: In this paper, the authors discuss mechanisms in silicon photonics for waveguiding, modulating, light amplification, and emission, together with recent advances of fabrication techniques, have enabled the demonstration of ultracompact passive and active silicon photonic components with very low loss.
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Integrated microwave photonics

TL;DR: This article reviews the recent advances in this emerging field which is dubbed as integrated microwave photonics and key integrated MWP technologies are reviewed and the prospective of the field is discussed.
Journal ArticleDOI

The single-mode condition for semiconductor rib waveguides with large cross section

TL;DR: In this article, a comparison of the single-mode condition for semiconductor rib waveguides with large cross section obtained by the effective index method and the corrected formula proposed by Soref et al. with experimental data is carried out.
Journal ArticleDOI

Sol-gel silica/titania-on-silicon Er/Yb-doped waveguides for optical amplification at 1.5 μm

TL;DR: By combining the sol-gel method and the spin-coating technique, silica-on-silicon Er-doped glass optical planar waveguides were fabricated as discussed by the authors.
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Low loss etchless silicon photonic waveguides

TL;DR: In this paper, a low-loss silicon waveguide fabricated without any silicon etching is presented, which produces ultra-smooth sidewalls with width variations of 0.3 nm.
References
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Journal ArticleDOI

Large single-mode rib waveguides in GeSi-Si and Si-on-SiO/sub 2/

TL;DR: In this article, mode-matching and beam-propagation methods are used to analyze single-mode operation of optical GeSi-Si and Si-SiO/sub 2/ semiconductor rib waveguides.
Journal ArticleDOI

Silicon-on-insulator optical rib waveguide loss and mode characteristics

TL;DR: In this article, the effect of rib etch depth, width, and interface roughness on loss and mode characteristics have been studied at wavelengths of 1.15 and 1.523 microns.
Journal ArticleDOI

Low loss singlemode optical waveguides with large cross-section in silicon-on-insulator

TL;DR: In this article, the realisation of singlemode rib waveguides in silicon-on-insulator (SOI) having a width and height of several micro-metres is reported.
Journal ArticleDOI

Optical waveguide parabolic coupling horns

TL;DR: In this paper, a parabolic shape is proposed to provide adiabatic transition regions between wide and narrow-channel optical waveguides, which is consistent with diffraction theory in the wide-channel limit.
Journal ArticleDOI

Comparison of optical waveguide losses in silicon-on-insulator

TL;DR: In this article, the theoretical dependence of losses on layer thickness has been confirmed for BE-SOI waveguide with cross-sections of several square micrometres, and Singlemode waveguide losses below 0.5dB/cm were reported for waveguides.
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