Concept

Modulateur acousto-optique

Publications associées (88)

Progress in Brillouin Slow Light and Its Impact in Fiber Sensing

Luc Thévenaz, Sang Hoon Chin, Kwang-Yong Song

This paper reviews the major advances in Brillouin slow light devices along the last two years. We also focus on the positive and negative implications of this effect in the development of fiber sensors. ...

Optical Society of America2006

Holography in commercially available photoetchable glasses

Demetri Psaltis

Volume holographic gratings are recorded and retrieved in two commercially available glasses: Schott Foturan and Hoya PEG3. These materials are photoetchable, which describes their major application, but they also allow storage of volume holograms without ...

2005

355 nm Wind Lidar Rayleigh and Mie Return Signal Simulator

Thomas Sidler

The conception and realisation of a prototype 355nm wind lidar return signal simulator capable of simulating the Rayleigh and the Mie return signals is described. The system is based on a commercial dual wavelength 1064nm/532nm diode pumped solid state las ...

2005

Far-infrared soft-mode behavior in PbSc1/2Ta1/2O3 thin films

Nava Setter, Kyle Brinkman

Temperature dependences of the optic phonons in PbSc1/2Ta1/2O3 (PST) sol-gel films deposited on sapphire substrates were studied by means of Fourier transform far-infrared transmission spectroscopy in the temperature range of 20-900 K. Four films displayin ...

2005

Generation of high-quality signals for optical sensing using DFB lasers injection locking

Luc Thévenaz, Dario Alasia

Injection locking of two DFB semiconductors opens new possibilities to generate effective signals for optical sensing, in order to reach better performances. Pure waveforms can be generated with qualities exceeding those obtained using external modulators. ...

International Society for Optical Engineering, Bellingham, WA 98227-0010, United States2004

Novel schemes for optical signal generation using laser injection locking with application to Brillouin sensing

Luc Thévenaz, Dario Alasia

Injection locking of two DFB semiconductors opens new possibilities to generate effective signals for optical sensing, in order to reach better performances. Pure wave forms can be generated with qualities exceeding those obtained using external modulators ...

Institute of Physics2004

Nonlinear optical scattering: The concept of effective susceptibility

Sylvie Roke

We present a general theoretical method for deriving effective susceptibilities for (non)linear optical scattering processes of arbitrary order using the reciprocity principle. This method allows us to formulate a generalized treatment of nonlinear optical ...

2004

High-resolution measurement of phase singularities produced by computer-generated holograms

Hans Peter Herzig, René Dändliker

We present measurements of the intensity as well as the phase distribution in the various diffraction orders of computer-generated holograms designed to generate a higher order Gauss–Laguerre beam. For the direct measurement of the phase distribution in th ...

2004

Brillouin gain spectrum characterization in optical fibres from 1 to 1000 K

Luc Thévenaz, Alexandre Fellay

The Brillouin frequency shift and linewidth were measured over the full temperature range in which the fibre experiences no structural damage, demonstrating that Brillouin sensing can be actually performed from 1 K to 1000 K. ...

IECE2003

A Novel SOI Schottky Electro-optical Modulator for Ghz High-Speed Switching

Mihai Adrian Ionescu, Luc Thévenaz, Michel Declercq, Philippe Robert, Marco Mazza

Thermo-optical and electro-optical (plasma dispersion) effects for silicon based integrated optical modulators are becoming attractive and effective solutions for telecommunications applications such as switching for programmable optical add-drop multiplex ...

IEEE2003

Graph Chatbot

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Connectez-vous pour utiliser Chat avec Graph Search