Polarization analysis of Brillouin scattering in a circularly birefringent fiber ring resonator

Küng, Alain; Thévenaz, Luc; Robert, Ph.

doi:10.1109/50.588670

Cited by 13 publications

(4 citation statements)

References 20 publications

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“…The polarization and birefringence dependence of SBS has already been used in Brillouin fiber lasers [33,34] and distributed birefringence measurements [35]. On the other hand, the same dependence can hinder the performance of distributed strain and temperature sensors [36], and SBS based slow light setups.…”

Section: Discussionmentioning

confidence: 99%

Vector analysis of stimulated Brillouin scattering amplification in standard single-mode fibers

et al. 2008

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Abstract:The polarization properties of stimulated Brillouin scattering (SBS) amplification or attenuation in standard single-mode fibers are examined through vectorial analysis, simulation and experiment. Vector propagation equations for the signal wave, incorporating SBS and birefringence, are derived and analyzed in both the Jones and Stokes spaces. The analysis shows that in the undepleted pump regime, the fiber may be regarded as a polarization-dependent gain (or loss) medium, having two orthogonal input SOPs, and corresponding two orthogonal output SOPs, for the signal, which, respectively, provide the signal with maximum and minimum SBS amplification (or attenuation). Under high Brillouin gain conditions and excluding zero-probability cases, the output SOP of arbitrarily polarized input signals, would tend to converge towards that of maximum SBS gain. In the case of high SBS attenuation the output SOP of an arbitrarily polarized signal would approach the output SOP corresponding to minimum attenuation. It is found that for a wide range of practical pump powers ( mW 100 ≤ ) and for sufficiently long fibers with typical SBS and birefringence parameters, the signal aligned for maximum SBS interaction will enter/emerge from the fiber with its electric field closely tracing the same ellipse in space as that of the pump at the corresponding side of the fiber, albeit with the opposite sense of rotation. The analytic predictions are experimentally demonstrated for both Stokes (amplification) and anti-Stokes (attenuation) signals.

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Section: Discussionmentioning

confidence: 99%

Vector analysis of stimulated Brillouin scattering amplification in standard single-mode fibers

et al. 2008

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“…The polarization and birefringence dependence of SBS has already been used in Brillouin fiber lasers 33,34 and distributed birefringence measurements 35 . On the other hand, the same dependence can hinder the performance of distributed strain and temperature sensors 36 .…”

Section: Discussionmentioning

confidence: 99%

Polarization attributes of stimulated Brillouin scattering slow light in fiber

et al. 2011

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The polarization-related properties of stimulated Brillouin scattering (SBS) processes in long, randomly birefringent, standard optical fibers are examined. Evolution equations for the pump and signal waves, in the presence of both birefringence and SBS, are provided in Jones and Stokes spaces. It is shown that in the undepleted pump regime, the amplification of the SBS signal wave is equivalent to that of a linear medium with polarization-dependent gain. The process is associated with a pair of orthogonal states of polarizations (SOPs) of the signal wave, which undergo maximum and minimum amplification. In long, standard fibers, the Jones vector of the probe SOP which corresponds to maximum amplification is aligned with the complex conjugate of the pump wave Jones vector. The maximum and minimum SBS gain coefficients in such fibers equal two-thirds and one-third of the gain coefficient that is predicted by scalar theory, respectively. The large differential gain of the SBS process gives rise to an effective pulling of the amplified Stokes probe wave SOP, towards that of maximum amplification. Lastly, Stokes wave pulses that are aligned for maximum and minimum amplification experience different group delays, which manifest as polarization-related distortions in SBS slow light setups.

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“…Although some characteristics of the eigenstates are described in Section II-A, the full analysis of the eigenpolarization and effective gain is beyond the scope of this paper. The detailed analysis can be found in [22] and [24]. For polarization maintaining fibers, intuitively, the Brillouin gain is maximum for parallel linear polarization aligned to a birefringence axis and 1/2 for linear polarization launched at 45 of the birefringence axis.…”

Section: B Threshold and Output Powermentioning

confidence: 99%

Brillouin fiber laser pumped by a DFB laser diode

Yong

Thévenaz

Kim

2003

J. Lightwave Technol.

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Abstract-In this paper, we present a novel Brillouin fiber-ring laser utilizing an unbalanced Mach-Zehnder interferometer (UMZI) as coupling device. The laser is pumped by a distributed-feedback laser diode and shows continuous-wave and single-frequency operation. Frequency-dependent transmission characteristics of the UMZI make it possible for the pump wave to pass through the laser-ring cavity with no resonance effect for stable pump operation, while the Brillouin laser signal still resonates in a high-finesse cavity. Single and multiple longitudinal mode operations are observed according to the relative location between longitudinal modes and Brillouin gain-curve center. A stable single-frequency operation is achieved using a simple stabilizing feedback loop based on dithering and autotracking techniques. Using this simple stabilizing feedback loop, the laser-intensity fluctuation is highly suppressed and remains below 4%. The Brillouin output converted from the pump power of 26.4 mW is about 3.18 mW, and the linewidth is measured to be below 1 kHz.

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Polarization analysis of Brillouin scattering in a circularly birefringent fiber ring resonator

Cited by 13 publications

References 20 publications

Vector analysis of stimulated Brillouin scattering amplification in standard single-mode fibers

Vector analysis of stimulated Brillouin scattering amplification in standard single-mode fibers

Polarization attributes of stimulated Brillouin scattering slow light in fiber

Brillouin fiber laser pumped by a DFB laser diode

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