Toward More Coherent Sources Using a Microstructured Chalcogenide Brillouin Fiber Laser

Abstract

Up to 16 dB frequency noise reduction and a linewidth 8 times narrower that of the pump source is reported for the Stokes component in a compact Brillouin fiber laser made of chalcogenide microstructured fiber. Since the pump wave is not resonant in the ring cavity, an active stabilization of the laser is not primordial thus making the system simpler and cheaper. Although only a 3 metre-long microstructured chalcogenide fiber was used as gain medium, a very low laser threshold power of 6 mW was obtained for nonresonant pumping. The linewidthnarrowing effect achieved in our BFL cavity is also discussed.

Phase-variance reduction of high order Stokes lines in Brillouin fiber lasers

“…In this communication, we investigate the noise properties of a multi-Stokes Brillouin fiber laser. We present numerical simulations from a model that is an extension of the usual three-waves model of stimulated Brillouin scattering in agreement with experimental results [2].…”

“…This increase in coherence is attractive for many sensing applications, whether in the field of fiber sensors or remote sensing systems such as LIDAR. Brillouin fiber lasers with several Stokes components can further increase the coherence through a cascading effect, the 1 st Stokes component being the pump for the 2 nd Stokes order and so on [2]. In this communication, we investigate the noise properties of a multi-Stokes Brillouin fiber laser.…”

Chalcogenide Glasses for Infrared Photonics

“…At 1.55 μm, low‐threshold (<6 mW) Brillouin laser was obtained with the small‐core single‐mode fiber shown in Fig. c, and all‐optical wavelength conversion and time‐domain demultiplexing with a 170 Gb/s rate were demonstrated . Further in the infrared, by pumping at 2 μm, four‐cascaded Raman shift and supercontinuum between 1.5 and 2.8 μm were observed with a suspended‐core fiber, in nanosecond and picosecond regimes, respectively.…”

A new circular chalcogenide/silica hybrid microstructured optical fiber with high negative dispersion for the purpose of dispersion compensation

“…These features make this class of material most suitable for certain applications in optics, such as nonlinear optics, in medicine such as tomography, endoscopy and surgery and in transmission systems such as communication fibers and customized filters [18,19]. The MOFs based on chalcogenide glasses are suitable for power delivery in lasers and the construction biochemical and chemical sensors [20][21][22].…”