Stimulated Brillouin scattering from multi-GHz-guided acoustic phonons in nanostructured photonic crystal fibres
Paulo Dainese,Paulo Dainese,P. St. J. Russell,Nicolas Joly,Jonathan Knight,Gustavo S. Wiederhecker,Hugo L. Fragnito,Vincent Laude,Abdelkrim Khelif +8 more
Reads0
Chats0
TLDR
In this paper, the authors explore stimulated Brillouin scattering in photonic crystal fibres with subwavelength-scale solid silica glass cores and show that the spontaneous BrillouIN signal develops a highly unusual multi-peaked spectrum with Stokes frequency shifts in the 10 GHz range.Abstract:
Wavelength-scale periodic microstructuring dramatically alters the optical properties of materials. An example is glass photonic crystal fibre1 (PCF), which guides light by means of a lattice of hollow micro/nanochannels running axially along its length. In this letter, we explore stimulated Brillouin scattering in PCFs with subwavelength-scale solid silica glass cores. The large refractive-index difference between air and glass allows much tighter confinement of light than is possible in all-solid single-mode glass optical fibres made using conventional techniques. When the silica-air PCF has a core diameter of around 70% of the vacuum wavelength of the launched laser light, we find that the spontaneous Brillouin signal develops a highly unusual multi-peaked spectrum with Stokes frequency shifts in the 10-GHz range. We attribute these peaks to several families of guided acoustic modes each with different proportions of longitudinal and shear strain, strongly localized to the core2,3. At the same time, the threshold power for stimulated Brillouin scattering4 increases fivefold. The results show that Brillouin scattering is strongly affected by nanoscale microstructuring, opening new opportunities for controlling light—sound interactions in optical fibres.read more
Citations
More filters
Journal ArticleDOI
Cavity Optomechanics
TL;DR: The field of cavity optomechanics explores the interaction between electromagnetic radiation and nano-or micromechanical motion as mentioned in this paper, which explores the interactions between optical cavities and mechanical resonators.
Journal ArticleDOI
Photonic-Crystal Fibers
TL;DR: The history, fabrication, theory, numerical modeling, optical properties, guidance mechanisms, and applications of photonic-crystal fibers are reviewed.
Journal ArticleDOI
Sound and heat revolutions in phononics
TL;DR: Advances in sonic and thermal diodes, optomechanical crystals, acoustic and thermal cloaking, hypersonic phononic crystals, thermoelectrics, and thermocrystals herald the next technological revolution in phononics.
Journal ArticleDOI
Stimulated Brillouin scattering in optical fibers
TL;DR: In this paper, a detailed overview of stimulated Brillouin scattering (SBS) in single-mode optical fibers is presented, with a particular emphasis on analytical analysis of the backreflected power and SBS threshold in optical fibers with various index profiles.
Journal ArticleDOI
Reconfigurable light-driven opto-acoustic isolators in photonic crystal fibre
TL;DR: A reconfigurable all-optical isolator based on the optical excitation of a gigahertz guided acoustic mode in a micrometre-sized photonic crystal fiber core was demonstrated in this paper.
References
More filters
Journal ArticleDOI
Photonic crystal fibers
TL;DR: In this article, a periodic array of microscopic air holes that run along the entire fiber length are used to guide light by corralling it within a periodic arrays of microscopic holes.
Journal ArticleDOI
Optical power handling capacity of low loss optical fibers as determined by stimulated Raman and brillouin scattering.
TL;DR: These effects of stimulated Raman and Brillouin scattering must be considered in the design of optical communication systems using low loss fibers especially when low loss optical fibers are used.
Journal ArticleDOI
Tunable all-optical delays via Brillouin slow light in an optical fiber.
Yoshitomo Okawachi,Matthew S. Bigelow,Jay E. Sharping,Zhaoming Zhu,Aaron Schweinsberg,Daniel J. Gauthier,Robert W. Boyd,Alexander L. Gaeta +7 more
TL;DR: It is demonstrated that stimulated Brillouin scattering can be used to generate all-optical slow-light pulse delays of greater than a pulse length for pulses as short as 16 ns in a single-mode fiber, and strongly suggest that analogous delays can be achieved using stimulated Raman scattering at telecommunication data rates.
Journal ArticleDOI
Fiber-based optical parametric amplifiers and their applications
TL;DR: An applications-oriented review of optical parametric amplifiers in fiber communications is presented, focusing on the intriguing applications enabled by the parametric gain, such as all-optical signal sampling, time-demultiplexing, pulse generation, and wavelength conversion.