Tuesday, 20 September, 2011
09:00 -- 10:45
Le Cervin

Tu.3.LeCervin • Novel Fiber Devices

Chair: Christian Schaeffer; Helmut Schmidt University, Germany
Tu.3.LeCervin.1 • 09:00 (Tutorial)
Optical nanofibers and nanowires
Limin Tong1; 1Department of Optical Engineering, Zhejiang University, China.
When its size goes down to the wavelength of the guided light, an optical nanofibre/nanowire exhibits interesting properties such as tight optical confinement, strong near-field interaction, abnormal dispersion, enhanced surface effects and excellent mechanical flexibilities, which opens opportunities for combining waveguide optics with near-field optics, nonlinear optics, plasmonics, quantum optics and optomechanics on the nanoscale and low power level, and intrigues a variety of novel nanophotonic components/devices. This talk reviews the principles and technological applications of optical nanofibres and nanowires. Future applications of these one-dimensional building blocks for optical communications and sensing are also discussed.
Tu.3.LeCervin.2 • 10:00
Fabrication and thermal decay of fiber Bragg gratings in Bi-Al co-doped optical fibers
Georgios Violakis1, Hans G. Limberger1, Valery Mashinsky2, Evgeny Dianov2; 1STI, EPFL, Switzerland; 2FORC RAS, Russian Federation.
A cw-244-nm-Ar+-laser was used to fabricate Bragg gratings in pristine Bi-Al-SiO2 optical fibers with index changes as high as 3.6 x 10-4. Thermal annealing revealed peaks in the energy distribution at 1.2 and 2.3 eV.
Tu.3.LeCervin.3 • 10:15
Bismuth-Doped Silica-Based Fiber Lasers Operating Near 1460 nm
Evgeny Dianov1, Igor Bufetov1, Sergey Firstov1, Alexey Shubin1, Oleg Medvedkov1, Mikhail Melkumov1, Vladimir Khopin2, Alexey Guryanov2; 1Fiber Optics Research Center, Russian Federation; 2ICHPS RAS, Russian Federation.
An efficient bismuth CW fiber laser with an efficiency of 50% and an output power of 20 W has been created, a Bi- and Ge-doped silica fiber being the gain medium.
Tu.3.LeCervin.4 • 10:30
Inscription of Bragg gratings using flexural acoustic waves
Roberson A. Oliveira1, Carlos A. Marques2, Kevin Cook3, John Canning3, Rogério N. Nogueira2, Alexandre A. Pohl1; 1Federal University of Technology - Parana, Brazil; 2Instituto de Telecomunicações, Instituto de Telecomunicações, Portugal; 3Interdisciplinary Photonics Laboratories, University of Sydney, Australia.
A novel technique that uses flexural acoustic waves to periodically dither the fiber during grating writing is presented. Results show the fabrication of sampled structures leading to a precise control in the grating fabrication.