Publication
Large stimulated Brillouin scattering amplification in gases
Related publications (44)
Local activation of surface and hybrid acoustic waves in optical microwires
Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Desmond Chow Ming Chia
Elastic vibrations in subwavelength structures have gained importance recently in fundamental light–matter studies and various optoacoustic applications. Existing techniques have revealed the presence of distinct acoustic resonances inside silica microwire ...
2018Versatile short-wave and mid-infrared sources based on wideband parametric conversion
The mid-infrared part of the optical spectrum is of high interest in a wide range of applications such as environmental gas monitoring, contaminant detection in the chemical, food or pharmaceutical industry, medical diagnosis, or defense and security. Rele ...
EPFL2017Control of pulsed light propagation through multimode optical fibers
Visualization of organs and cells in the interior of living beings is a challenging task due to the light absorption and multiple light scattering occurring in biological tissue that prevents the di-rect transmission of images. A standard visualization app ...
EPFL2017Microstructure Engineering in Multi-material Fibers
The integration of conducting and semiconducting architectures within thermally drawn thin and flexible fibers is emerging as a versatile platform for smart sensors and imaging systems, medical and biological probes, energy harvesting and advanced textile. ...
EPFL2017All-fibered chalcogenide based continuous-wave parametric amplification in the mid-infrared
Camille Sophie Brès, Davide Grassani, Svyatoslav Kharitonov, Sida Xing
We demonstrate parametric amplification around 2 μm in a dispersion engineered tapered microstructured chalcogenide fiber. Almost 5 dB of signal amplification was achieved by 125 mW coupled power from a thulium-doped fiber pump laser. ...
OSA Publishing2017Impact of modulation instability on distributed optical fiber sensors
Modulation instability (MI) as the main limit to the sensing distance of distributed fiber sensors is thoroughly investigated in this thesis in order to obtain a model for predicting its characteristics and alleviating its effects. Starting from Maxwell's ...
EPFL2016Distributed shape sensing using Brillouin scattering in multi-core fibers
Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Zhiyong Zhao
A theoretical and experimental study on the response of Brillouin scattering in multi-core optical fibers (MCF) under different curving conditions is presented. Results demonstrate that the Brillouin frequency shift of the off-center cores in MCF is highly ...
Optical Society of America2016Sources of noise in Brillouin optical time-domain analyzers
Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Javier Urricelqui Polvorinos
This paper presents a thorough study of the different sources of noise affecting Brillouin optical time-domain analyzers (BOTDA), providing a deep insight into the understanding of the fundamental limitations of this kind of sensors. Analytical and experim ...
SPIE2015Extending the Real Remoteness of Long-Range Brillouin Optical Time-Domain Fiber Analyzers
Luc Thévenaz, Sang Hoon Chin, Marcelo Alfonso Soto Hernandez
The real remoteness of a distributed optical fiber sensor based on Brillouin optical time-domain analysis is considerably extended in this paper using seeded second-order Raman amplification and optical pulse coding. The presented analysis and the experime ...
Ieee-Inst Electrical Electronics Engineers Inc2014High-power parametric conversion from near-infrared to short-wave infrared
Camille Sophie Brès, Svyatoslav Kharitonov, Adrien Billat, Steevy Joyce Cordette, Yu-Pei Tseng
We report the design of an all-fiber continuous wave Short-Wave Infrared source capable to output up to 700 mW of power at 1940 nm. The source is tunable over wavelength intervals comprised between 1850 nm and 2070 nm depending on its configuration. The ou ...
Optical Society of America2014