Tuesday, 20 September, 2011
14:30 -- 16:15
Le Cervin

Tu.5.LeCervin • Signal Processing

Chair: Peter Andrekson; Chalmers University of Technology, Fotonik, Sweden
 
Tu.5.LeCervin.1 • 14:30
Frequency-Resolved Optical Gating in Highly-Nonlinear Fibers
Evgeny Myslivets1, Bill P.-P. Kuo1, Stojan Radic1; 1UCSD, USA.
We demonstrate a measurement technique for frequency-resolved optical gating (FROG) using a parametric fiber mixer. A cascaded mixer using highly nonlinear fiber (HNLF) was used to characterize 2-ps optical pulses with accuracy exceeding that of conventional sampling instruments.
 
Tu.5.LeCervin.2 • 14:45
Wavelength- and Time-Selective OTDM-to-WDM Conversion with Variable Channel Spacing in WDM Grid Using a Reconfigurable Multiwavelength Pulse Compressor
Hung Nguyen Tan1, Quang Nguyen-The1, Motoharu Matsuura1, Naoto Kishi1; 1The University of Electro-Communications, Japan.
We present OTDM-to-WDM conversion with channel-spacing and wavelength allocation reconfigurable in WDM-grid by using multiwavelength Raman pulse compressor. 40Gb/s OTDM are extracted with low penalties into WDM at 400GHz and 200GHz-spacing and different wavelength orders.
 
Tu.5.LeCervin.3 • 15:00
Supercontinuum Spectrum Engineering in Ge-doped Microstructured Multicore Fiber
Daniele Modotto1, Gabriele Manili1, Umberto Minoni1, Stefan Wabnitz1, Costantino De Angelis1, Graham E. Town2, Alessandro Tonello3, Vincent Couderc3; 1Dipartimento di Ingegneria dell'Informazione, Università di Brescia, Italy; 2Department of Electronic Engineering, Macquarie University, Australia; 3XLIM, Université de Limoges, UMR CNRS 6172, France.
Supercontinuum generation in a multicore Ge-doped microstructured optical fiber is experimentally studied. The output spectral extension and the presence of four-wave mixing peaks are strongly dependent on the level of doping.
 
Tu.5.LeCervin.4 • 15:15
Demonstration of Continuous-Wave Four-Wave Mixing in AsSe Chalcogenide Microstructured Fiber
Camille-Sophie Bres1,2, Sanja Zlatanovic1, Andreas O. J. Wiberg1, Bryan Stossel3, Stojan Radic1; 1EPFL, Switzerland; 2UCSD, USA; 3Lockheed Martin Corporation, USA.
Continuous-wave four-wave mixing in a 2.5-cm long segment of AsSe Chalcogenide microstructured fiber is demonstrated. FWM products over 50nm are measured for 345mW of pump power and wavelength conversion of 4ps pulses is shown.
 
Tu.5.LeCervin.5 • 15:30
Multi-wavelength generation based on Brillouin enhanced four-wave mixing in optical fibers
Sanghoon Chin1, Luc Thevenaz1; 1EPFL, Switzerland.
An optical comb consisting of 15 lines within 30 dB was generated with an extremely simple setup, based on the combination of amplified spontaneous Brillouin scattering and 4-wave mixing in optical fibers.
 
Tu.5.LeCervin.6 • 15:45
Multipath Interference Test Method using Synthesized Chirped Signal from Directly Modulated DFB-LD with Digital-Signal-Processing Technique
Kazuo Aida1, Toshihiko Sugie2; 1Faculty of Engineering, Shizuoka University, Japan; 2Engineering Sales, NTT Electronics Corporation, Japan.
Multipath interference (MPI) is detected as a beat spectrum between a multipath signal and a direct signal using a synthesized chirped test signal and measured as low as -78dB for a 3 km single-mode fiber.
 
Tu.5.LeCervin.7 • 16:00
Few-Mode Fiber for Uncoupled Mode-Division Multiplexing Transmissions
Pierre Sillard1, Marianne Astruc1, David Boivin1, Hélène Maerten1, Lionel Provost1; 1Draka Communications, France.
We report the design and fabrication of a few-mode fiber that supports 4 robust modes with low mode couplings, large differential group delays, large effective areas of similar values, and low losses.

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