Publication

Tunable wavelength-stabilized mode-locked thulium-doped fiber laser beyond 2000nm

Publications associées (35)

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MIR supercontinuum in all-normal dispersion Chalcogenide photonic crystal fibers pumped with 2μm femtosecond laser

Camille Sophie Brès, Davide Grassani, Jianqi Hu, Svyatoslav Kharitonov, Sida Xing

We demonstrate mid-infrared supercontinuum generation in an all-normal dispersion Chalcogenide PCF pumped by fiber laser. The -20dB bandwidth is 1.7~2.7μm dominated by self-phase modulation and optical wave breaking. Tapering is proposed to improve perform ...

OSA2017

We present first dual-wavelength all-fiber laser, based on isolator-free theta cavity with two fiber Bragg mirrors and thulium- and holmium-doped fibers. Laser provides 350mW total power with 8% slope efficiency, and linewidth less than 01.mm. ...

Ieee2017

Kerr nonlinearity and dispersion characterization of core-pumped thulium-doped fiber at 2 μm

Camille Sophie Brès, Svyatoslav Kharitonov, Adrien Billat

A nonlinear coefficient of 3.6–4.1 W−1 km−1 and group velocity dispersion of −20 ps2∕km of a commercial corepumped thulium-doped fiber have been evaluated using degenerate four-wave mixing at 2 μm. The anomalous dispersion behavior of the fiber has been co ...

Optical Society of America2016

Isolator-free unidirectionalthulium-doped fiber laser

Camille Sophie Brès, Svyatoslav Kharitonov

We report the first demonstration of a unidirectional, isolator-free 2-mmthulium-doped fiber (TDF) laser, relying on the properties of the theta cavity (ring resonator with S-shaped feedback). The core pumped theta cavity TDF laser provides sub-Watt output ...

2015

Isolator-free unidirectional thulium-doped fiber laser

Camille Sophie Brès, Svyatoslav Kharitonov

Chinese Acad Sciences, Changchun Inst Optics Fine Mechanics And Physics2015

High-resolution, lensless endoscope based on digital scanning through a multimode optical fiber

Demetri Psaltis, Christophe Moser, Salma Farahi

We propose and experimentally demonstrate an ultra-thin rigid endoscope (450 mu m diameter) based on a passive multimode optical fiber. We use digital phase conjugation to overcome the modal scrambling of the fiber to tightly focus and scan the laser light ...

Optical Soc Amer2013

Optimization of long-range BOTDA sensors with high resolution using first-order bi-directional Raman amplification

Marcelo Alfonso Soto Hernandez

In this paper we perform an optimization of Brillouin optical time-domain analysis (BOTDA) sensors for achieving high resolution over long sensing ranges using distributed Raman amplification. By employing an optimized first-order bi-directional Raman ampl ...

Optical Society of America2011

Raman-assisted BOTDA sensors

Luc Thévenaz

We review some recent results on the application of distributed Raman amplification schemes, including ultralong lasers, to the extension of the operating range and contrast in Brillouin optical time domain analysis (BOTDA) distributed sensing systems. ...

IEEE2011

Fibers doped with bismuth show broad luminescence bands around 750, 1100, and 1400 nm with spectral bandwidths of 100 to 200 nm at room temperature. The luminescence bands can be observed by pumping broad absorption bands in the visible or near infrared sp ...

2010

Photosensitivity and luminescence of chromium and bismuth doped fibers

Christian Ban

Optical fiber materials with broad-band gain in the visible or in the telecommunication window are of great interest for optical communication or the biomedical domain in order to built integrated tunable lasers, amplifiers, ultra-short pulse lasers, or br ...

EPFL2009