Polarization dependence of the intensity modulation transfer function of an optical system with PMD and PDL

Eyal, Avishay; Kuperman, D.; Dimenstein, O.; Tur, Moshe

doi:10.1109/lpt.2002.803898

Cited by 23 publications

(10 citation statements)

References 12 publications

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“…The maximum and minimum gains were found using the following procedure [2]: The programmable polarization controller in the signal path was set to four non-degenerate SOPs, and the output signal power was recorded for each. Based on these four measurements, the top row of the 4X4 Mueller matrix describing the pumped fiber under test was extracted [14], and signal SOPs for minimum and maximum output power could be calculated.…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

Dual-pump push-pull polarization control using stimulated Brillouin scattering

Shmilovitch¹,

Primerov²,

Zadok³

et al. 2011

Opt. Express

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Stimulated Brillouin scattering (SBS) amplification of probe signals is highly polarization dependent. Maximum and minimum gain values are associated with a pair of orthogonal states of polarization (SOP), which are related to the pump SOP. Since the maximum gain is much higher than the minimum, the SOP of the output probe is pulled towards that of the maximum amplification. Polarization pulling is restricted, however, by pump depletion. In this work, a new method is proposed, analyzed and demonstrated for enhanced SBS polarization pulling, using two orthogonal pumps. Here, one pump amplifies one polarization component of the probe wave, and at the same time the other pump attenuates the corresponding orthogonal component, resulting in a push-pull effect. In the undepleted regime and for equal total power, the same degree of pulling is achieved as in the single pump case, but at a significantly less signal gain. Thus, the dual pump technique can provide high pulling efficiency for stronger input signals, deferring the onset of depletion.

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Section: Experimental Setup and Resultsmentioning

confidence: 99%

Dual-pump push-pull polarization control using stimulated Brillouin scattering

Shmilovitch¹,

Primerov²,

Zadok³

et al. 2011

Opt. Express

View full text Add to dashboard Cite

show abstract

“…PC) in the signal path was set to four nondegenerate SOPs, and the output signal power was recorded for each. Based on these four measurements, the top row of the 4X4 Mueller matrix describing the pumped fiber under test was extracted [31], and signal SOPs for minimum and maximum output power could be calculated. Next, the programmable PC was set to these two input SOPs and the output signal power was recorded.…”

Section: Methodsmentioning

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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“…PC) in the signal path was set to four non-degenerate SOPs, and the output signal power was recorded for each. Based on these four measurements, the top row of the 4X4 Mueller matrix describing the pumped fiber under test was extracted 32 , and signal SOPs for minimum and maximum output power could be calculated. Next, the programmable PC was set to these two input SOPs and the output signal power was recorded.…”

Section: Stimulated Brillouin Scattering Polarization Pullingmentioning

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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Polarization dependence of the intensity modulation transfer function of an optical system with PMD and PDL

Cited by 23 publications

References 12 publications

Dual-pump push-pull polarization control using stimulated Brillouin scattering

Dual-pump push-pull polarization control using stimulated Brillouin scattering

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

Polarization attributes of stimulated Brillouin scattering slow light in fiber

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