Comparison Among Various&amp;lt;tex&amp;gt;$hbox Si_3hboxN _4$&amp;lt;/tex&amp;gt;Waveguide Geometries Grown Within a CMOS Fabrication Pilot Line

Daldosso, N.; Melchiorri, M.; Riboli, Francesco; Girardini, M.; Pucker, G.; Crivellari, M.; Bellutti, P.; Lui, A.; Pavesi, L.

doi:10.1109/jlt.2004.831182

Cited by 114 publications

(72 citation statements)

References 15 publications

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“…For a discussion and validation of the method see Ref. 23. Figure 12 shows a top view of the scattered light from an 8-m-wide rib and 0.95-cm-long waveguide.…”

Section: Loss Measurements and Discussionmentioning

confidence: 99%

“…An experimental estimate of about 15 dB has been obtained by comparison with similar samples for which it was possible to determine the propagation losses by the cut-back technique and, hence, to deduce the coupling losses. 23 Propagation losses coefficients have been obtained by subtracting coupling from insertion losses and are reported in Table II for light at 633 and 780 nm. It is worth noting that the two independent techniques give the same ͑within the error bar͒ loss coefficients, thus demonstrating the reliability of both experimental procedures.…”

Section: -6mentioning

confidence: 99%

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Low-loss rib waveguides containing Si nanocrystals embedded in SiO2

Pellegrino¹,

Garrido²,

Garcı́a³

et al. 2005

Journal of Applied Physics

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We report on the study and modeling of the structural and optical properties of rib-loaded waveguides working in the 600-900-nm spectral range. A Si nanocrystal ͑Si-nc͒ rich SiO 2 layer with nominal Si excess ranging from 10% to 20% was produced by quadrupole ion implantation of Si into thermal SiO 2 formed on a silicon substrate. Si-ncs were precipitated by annealing at 1100°C, forming a 0.4-m-thick core layer in the waveguide. The Si content, the Si-nc density and size, the Si-nc emission, and the active layer effective refractive index were determined by dedicated experiments using x-ray photoelectron spectroscopy, Raman spectroscopy, energy-filtered transmission electron microscopy, photoluminescence and m-lines spectroscopy. Rib-loaded waveguides were fabricated by photolithographic and reactive ion etching processes, with patterned rib widths ranging from 1 to 8 m. Light propagation in the waveguide was observed and losses of 11 dB/ cm at 633 and 780 nm were measured, modeled and interpreted.

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“…For a discussion and validation of the method see Ref. 23. Figure 12 shows a top view of the scattered light from an 8-m-wide rib and 0.95-cm-long waveguide.…”

Section: Loss Measurements and Discussionmentioning

confidence: 99%

Section: -6mentioning

confidence: 99%

Low-loss rib waveguides containing Si nanocrystals embedded in SiO2

Pellegrino¹,

Garrido²,

Garcı́a³

et al. 2005

Journal of Applied Physics

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“…The waveguide considered for the 2-D en/decoder is assumed to be composed of Hydex, a low-loss high-indexcontrast glass-based material system [15]. The waveguide-core refractive index is 1.70, while that of the cladding is 1.45, giving a refractive index-contrast ratio of 17% with respect to the cladding.…”

Section: Simulation Results For 2-d En/decodermentioning

confidence: 99%

Design and Simulation of Two-Dimensional OCDMA En/Decoder Composed of Double Ring Add/Drop Filters and Delay Waveguides

Chung

2016

Journal of the Optical Society of Korea

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A two-dimensional optical code division multiple access (OCDMA) en/decoder composed of four double-ring resonator add/drop filters and three delay waveguides is designed, and a transfer matrix method combined with fast Fourier transform is implemented to provide numerical simulations for the en/decoder. The auto-correlation peak level over the maximum cross-correlation level is larger than 3 at the center of the correctly decoded pulse for most of wavelength hopping and spectral phase code combinations, which assures the BER lower than 10 -3 which corresponds to the forward error correction limit.

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“…For comparison, the nonlinearity of silicon nitride is roughly 10 times the nonlinearity of silica, 2 times that of Hydex, and 0.1 times that of silicon. On the loss side, 200 nm thick channel waveguides with ≤ 0.2 dB/cm propagation loss at 780 nm have been demonstrated, 16 and at 1540 nm propagation losses of 0.12 dB/cm have been measured in channel waveguides of more than 700 nm thickness. 17 The specific device design studied in this work is a buried channel Si 3 N 4 waveguide circuit consisting of a racetrack resonator (RTR) with radius of curvature R, laterally coupled to a straight bus waveguide, as illustrated in Fig.…”

Section: Device Design and Fabricationmentioning

confidence: 99%

Towards an integrated squeezed light source

et al. 2017

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Abstract. Since it's first generation more than 30 years ago, squeezed light has developed towards a tool for high precision measurements as well as a tool for quantum information tasks like quantum key distribution. Miniaturization of sensors is an active field of research with the prospect of many applications. The precision of optical sensors based on interferometric measurements is often limited by the fundamental shot noise. While shot noise can be reduced by increasing the employed light power, integrated sensors pose limitations on the maximum possible amount due to damaging effects of high intensity as well as power consumption. Bright quadrature squeezed light produced by the optical Kerr effect in a nonlinear medium offers an opportunity to overcome these limitations. Here, we present first steps towards a bright quadrature squeezed light source produced by the optical Kerr effect in race-track resonators in silicon nitride by presenting characterizations of the chip. Using standard fabrication techniques this source will have the potential of seamless integration into on-chip optical sensors.

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Comparison Among Various<tex>$hbox Si_3hboxN _4$</tex>Waveguide Geometries Grown Within a CMOS Fabrication Pilot Line

Cited by 114 publications

References 15 publications

Low-loss rib waveguides containing Si nanocrystals embedded in SiO2

Low-loss rib waveguides containing Si nanocrystals embedded in SiO2

Design and Simulation of Two-Dimensional OCDMA En/Decoder Composed of Double Ring Add/Drop Filters and Delay Waveguides

Towards an integrated squeezed light source

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