Bifurcation bridges between external-cavity modes lead to polarization self-modulation in vertical-cavity surface-emitting lasers

Sciamanna, Marc; Erneux, Thomas; Rogister, Fabien; Deparis, Olivier; Mégret, Patrice; Blondel, M.

doi:10.1103/physreva.65.041801

Cited by 63 publications

(36 citation statements)

References 16 publications

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“…We have followed the secondary Hopf bifurcations arising on the ECMs. In the absence of reinjection, quasiperiodic solutions do not evolve into highly anharmonic patterns and they predominantly form bridges connecting different ECMs [17,18]. This scenario is drastically changed in the presence of reinjection.…”

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confidence: 95%

Passive Mode Locking of Lasers by Crossed-Polarization Gain Modulation

2006

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We report on a novel approach for inducing passive mode locking of lasers without using any saturable absorber but exploiting the polarization degree of freedom of light. In our scheme, passive mode locking is achieved by crossed-polarization gain modulation caused by the reinjection of a polarization-rotated replica of the laser output after a time delay. The reinjection time delay defines resonance tongues that correspond to mode-locking operation. Numerical continuation reveals that the cw solution is destabilized through a Hopf bifurcation that defines the onset of multimode operation which evolves sharply into a mode-locked solution. Our approach can be applied to a large variety of laser systems. For vertical-cavity surface-emitting lasers, we demonstrate stable mode-locked pulses at repetition rates in the GHz range and pulse widths of few tens of picoseconds.

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confidence: 95%

Passive Mode Locking of Lasers by Crossed-Polarization Gain Modulation

2006

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“…First as a laboratory tool to explore nonlinear dynamics of systems with time delay [1], and second for their potential to drive applications based on chaos [2]. Such feedbacks can be achieved, for example, from an external mirror [3][4][5], from an optoelectronic feedback [6][7][8], from polarization-rotated optical feedback [9][10][11][12][13], or from phase-conjugate feedback (PCF) [14][15][16][17][18]. As the light is reflected back to the laser cavity, it modifies drastically the laser output.…”

Section: Introductionmentioning

confidence: 99%

Laser diode nonlinear dynamics from a filtered phase-conjugate optical feedback

et al. 2015

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The rate equations for a laser diode subject to a filtered phase-conjugate optical feedback are studied both analytically and numerically. We determine the Hopf bifurcation conditions, which we explore by using asymptotic methods. Numerical simulations of the laser rate equations indicate that different pulsating intensity regimes observed for a wide filter progressively disappear as the filter width increases. We explain this phenomenon by studying the coalescence of Hopf bifurcation points as the filter width increases. Specifically, we observe a restabilization of the steady-state solution for moderate width of the filter. Above a critical width, an isolated bubble of time-periodic intensity solutions bounded by two successive Hopf bifurcation points appears in the bifurcation diagram. In the limit of a narrow filter, we then demonstrate that only two Hopf bifurcations from a stable steady state are possible. These two Hopf bifurcations are the Hopf bifurcations of a laser subject to an injected signal and for zero detuning.

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“…used for optical clock recovery in all optical regeneration systems or as a stable source of microwave oscillations. 14 In this paper we study the feedback-induced, LFF regime. In this regime the laser intensity (observed on a nanosecond time scale) exhibits sudden random drops toward zero, recovering gradually to its original value (for a review see Ref.…”

Section: Introductionmentioning

confidence: 99%

“…5 However, the polarization properties of VCSELs also lead to new and interesting phenomena when VCSEL are coupled to an external cavity. We can cite, for example, polarization-switching phenomena in polarized optical feedback, 6,7 polarization self-modulation in VCSELs coupled to optical feedback through a quarter-wave plate, [8][9][10][11][12][13][14] optical-feedbackinduced polarization mode hopping, and generalized multistability. 15 New applications of VCSELs for optical telecommunications may be proposed based on these delay-induced dynamics.…”

Section: Introductionmentioning

confidence: 99%

Different regimes of low-frequency fluctuations in vertical-cavity surface-emitting lasers

et al. 2003

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A numerical study of vertical-cavity surface-emitting lasers with optical feedback demonstrates the existence of two different types of low-frequency fluctuations (LFFs). The competition of two equally dominant polarization modes characterizes one type of LFF, while the other type is characterized by power drops in a dominant polarization mode and power bursts in the orthogonal depressed mode. We characterize and compare these two types of LFFs on the basis of their polarization properties and their dependency on the laser parameters. We show furthermore that a transition is possible from one type of LFF to the other, depending on the values of the linear anisotropies of the vertical-cavity surface-emitting laser cavity.

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Bifurcation bridges between external-cavity modes lead to polarization self-modulation in vertical-cavity surface-emitting lasers

Cited by 63 publications

References 16 publications

Passive Mode Locking of Lasers by Crossed-Polarization Gain Modulation

Passive Mode Locking of Lasers by Crossed-Polarization Gain Modulation

Laser diode nonlinear dynamics from a filtered phase-conjugate optical feedback

Different regimes of low-frequency fluctuations in vertical-cavity surface-emitting lasers

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