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The polarization evolution of stimulated Brillouin scattering amplified signals in the presence of fiber birefringence is examined in analysis, simulation and experiment. The signal polarization is drawn towards the conjugate of the pump polarization.
We demonstrate the distributed measurement of Brillouin dynamic grating spectrum in a polarization maintaining fiber based on time-domain analysis. By synchronized propagation of the pump and the probe pulses, the local spectrum of Brillouin dynamic grating is acquired together with the local Brillouin gain spectrum in a single experimental setup. The temperature sensitivity as high as -370 MHz/degC...
A novel method is proposed to demodulate the output of Brillouin optical correlation domain analysis by using an analog signal processing unit free from the update rate limitation of the conventional method. The distributed Brillouin interaction per pump-probe frequency offset is continuously recorded during linearly sweeping the sensing positions. In experiment, we realize ~20-Hz distributed sensing...
The Brillouin gain coefficient of a 1.16-m-long bismuth oxide-based photonic crystal fiber is measured by using a beat lock-in probe detection scheme to overcome the limitation caused by considerable pump beam back-reflection at splicing points. gB is found to be ~4times10-11 m/W.
We present a new scheme to simultaneously delay pulses without broadening and compensate the optical fiber dispersion. Our technique is based on a negative group velocity dispersion achieved by a stimulated Brillouin scattering spectrum control.
A continuous-wave light as Brillouin probe is linearly frequency-modulated to determine the location of the delayed pulse signal via stimulated Brillouin scattering. The random ~4-mus continuous tunability is experimentally demonstrated. The pulse distortion is also studied.
We present results on the characterization of 10 Gb/s DPSK signals using Brillouin complex optical spectrometry. NRZ and RZ formats are analyzed in the optical domain, and time resolved phase and constellation are obtained.
Simple, continuous wave based beat length measurement technique is proposed, using statistics of the states of polarization of stimulated Brillouin scattering amplified signals. Polarization statistics are studied analytically, numerically and experimentally.
We propose a simple fiber design with a hole-assisted structure for suppressing SBS. We experimentally realize a 7.0 dB improvement in the SBS threshold compared with SSMF, and numerically show a 13.5 dB improvement by profile optimization.
Presented is a novel system configuration of slow-light systems based on stimulated Brillouin-scattering consisting of several short fibers and a blocking of spurious backscattered spectral components for an enhancement of the gain and time delay.
We demonstrate a signal wavelength independent SBS slow light architecture using a XGM-wavelength converter and a Brillouin fiber laser. The signal is wavelength converted to become automatically aligned with the resonance induced by SBS.
We report a new method for storing and retrieving sequences of optical data pulses via induced acoustic excitations in an optical fiber through the process of stimulated Brillouin scattering.
We report the dependence of Brillouin linewidths on the pump power below the threshold of Brillouin lasing in a silica fiber, and explain these experimental results by the distributed fluctuating source model.
We show that the spectral bandwidth of slow light systems based on stimulated Brillioun scattering in optical fibers can be massively increased by waveguide induced spectral broadening, to a telecom-scale value of ≥10 Gb/s.
This article shows simulation results and first practical investigations of the optimization of a Brillouin spectrum with the natural bandwidth superimposed with two losses for fiber based slow light systems.
We show that the spectral bandwidth of slow light systems based on stimulated Brillioun scattering in optical fibers can be massively increased by waveguide induced spectral broadening, to a telecom-scale value of ≥10 Gb/s.
We demonstrate a signal wavelength independent SBS slow light architecture using a XGM-wavelength converter and a Brillouin fiber laser. The signal is wavelength converted to become automatically aligned with the resonance induced by SBS.
We report the dependence of Brillouin linewidths on the pump power below the threshold of Brillouin lasing in a silica fiber, and explain these experimental results by the distributed fluctuating source model.
A novel experimental method is demonstrated to precisely characterize optical-frequency deviation within ±4 MHz between orthogonal axes in a high-birefringence fiber arising from the SBS-induced dynamic acoustic-grating. This precision means a birefringence accuracy of 3×10−8.
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