Dr. Jerome Grelin Profile

Dr. Jerome Grelin

Engineering Manager at Smart Fibres Ltd

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Publications (6)

Proceedings Article | 28 September 2015 Paper

HOBAN project: towards the development of radiation-tolerant fiber-based temperature sensors for nuclear industry

A. Morana, S. Girard, E. Marin, S. Rizzolo, C. Marcandella, P. Paillet, J. Périsse, J. Kuhnhenn, J. Grelin, G. Melin, T. Robin, B. Cadier, A. Boukenter, Y. Ouerdane, J.-R. Macé

Proceedings Volume 9634, 96347Z (2015) https://doi.org/10.1117/12.2195063

KEYWORDS: Fiber Bragg gratings, Sensors, Temperature sensors, Optical fibers, Temperature metrology, Environmental sensing, Fiber optics sensors, Lanthanum, Resistance, Commercial off the shelf technology

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Proceedings Article | 28 July 2008 Paper

Integrated optics for nulling interferometry in the thermal infrared

Marc Barillot, Eleonore Barthelemy, Jean-Emmanuel Broquin, Jérôme Frayret, Jérôme Grelin, Gary Hawkins, Volker Kirschner, Gilles Parent, Annie Pradel, Emmanuel Rossi, Caroline Vigreux, Shaoqian Zhang, Xianghua Zhang

Proceedings Volume 7013, 701314 (2008) https://doi.org/10.1117/12.789378

KEYWORDS: Integrated optics, Optical filters, Waveguides, Chalcogenides, Etching, Information operations, Infrared radiation, Thermography, Glasses, Nulling interferometry

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Proceedings Article | 12 February 2008 Paper

Realization of Ag+/Na+ ion-exchanged surface and buried waveguides on germanate glasses

Jérôme Grelin, Elise Ghibaudo, Jean-Emmanuel Broquin

Proceedings Volume 6896, 689608 (2008) https://doi.org/10.1117/12.767465

KEYWORDS: Glasses, Waveguides, Ions, Integrated optics, Diffusion, Silver, Channel waveguides, Refractive index, Ion exchange, Wave propagation

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Ion-exchange technology on glass has been successfully used for more than twenty years to manufacture dependable and low cost integrated optics active and passive devices on silicate or phosphate glasses substrates in the telecommunication wavelengths operation range (from λ = 0.8 to 1.7 μm). However, the recent developments of integrated optics instruments for astronomical interferometers or biological sensors have lead to an increase of the devices operation range towards the mid-infrared. For these reasons, we present in this paper the realization of both surface and buried waveguides by means of ion-exchange on a glass which is transparent until λ = 5 μm. In this study, the choice of germanate glass BGA-G115 from Kigre Inc. has been made because of both its similarity with silicate glass, its content of Na⁺ ions and its excellent transparency in the considered operation range. A complete study of the silver ion diffusion on this new glass matrix has been performed allowing the determination of silver and sodium ion-diffusion coefficients at working temperature and silver concentration. Using theses data, simulations have shown that an ion-exchange of 90 min in a 0.03AgNO_3-0.97NaNO₃ molten salt at a temperature of 330°C can lead to the realization of surface single mode channel waveguides at either λ = 1.55 μm or λ = 3.39 μm depending on the diffusion window width. To demonstrate channel waveguides on BGA-G115, a specific technological process based on the deposition of a polycrystalline silicon masking layer has been implemented. Single-mode channel waveguides, with a 2.5 μm diffusion window width, have thus been realized and characterized at the wavelength of 1.55 m. Modal size has been measured to be 10 μm ± 1 μm x 7 μm ± 1 μm for propagation losses of 1.2 dB/cm ± 0.5 dB/cm for a 2 cm ± 0.1 cm long device. As for buried waveguides, their feasibility has been demonstrated on multimode ones where a burying depth of 25 μm ± 2 μm has been measured.

Proceedings Article | 9 February 2007 Paper

Three-dimensional integration of passive functions on glass by means of selectively buried waveguides and multiple ion-exchanges

Jérôme Grelin, Davide Bucci, Elise Ghibaudo, Jean-Emmanuel Broquin

Proceedings Volume 6475, 64750A (2007) https://doi.org/10.1117/12.703295

KEYWORDS: Waveguides, Refractive index, Glasses, Ions, Silver, Sodium, Diffusion, Integrated optics, Multiplexers, Optical amplifiers

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Proceedings Article | 24 February 2006 Paper

Study of a pump/signal multiplexer based on a segmented asymmetric Y junction by silver/sodium ion exchange on glass

Davide Bucci, Jérôme Grelin, Elise Ghibaudo, Jean-Emmanuel Broquin

Proceedings Volume 6123, 61230T (2006) https://doi.org/10.1117/12.646284

KEYWORDS: Waveguides, Glasses, Multiplexers, Beam propagation method, Dispersion, Demultiplexers, Ion exchange, Optical amplifiers, Refractive index, Diffusion

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Proceedings Article | 31 March 2005 Paper

Periodically segmented waveguides made by ion-exchange in glass: application to a TE-pass polarizer and to an asymmetric Y-junction wavelength demultiplexer

Davide Bucci, Jerome Grelin, Elise Ghibaudo, Jean-Emmanuel Broquin

Proceedings Volume 5728, (2005) https://doi.org/10.1117/12.590511

KEYWORDS: Waveguides, Refractive index, Glasses, Diffusion, Polarizers, Polarization, Demultiplexers, Silver, Image segmentation, Birefringence

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Showing 5 of 6 publications

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