Modeling self-pulsating DFB lasers with an integrated phase tuning section

Radziunas, Mindaugas; Wünsche, H.‐J.; Sartorius, B.; Brox, O.; Hoffmann, D.; Schneider, К. R.; Marcenac, D.D.

doi:10.1109/3.863954

Cited by 50 publications

(30 citation statements)

References 17 publications

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“…In summary, the map in the (ϕ, η)-plane (see Figure 11) shows the roots and borders of many delayed optical feedback phenomena observed experimentally and numerically [24], [35]. The diagram contains points (e.g., the fold-Hopf interaction and the strong resonance) and curves (e.g., homoclinic connections to saddle-foci or foci-foci) which imply the presence of complicated dynamics.…”

Section: Conclusion-outlookmentioning

confidence: 99%

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Numerical Bifurcation Analysis for Multisection Semiconductor Lasers

Sieber¹

2002

SIAM J. Appl. Dyn. Syst.

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Abstract. We investigate the dynamics of a multisection laser implementing a delayed optical feedback experiment where the length of the cavity is comparable to the length of the laser. First, we reduce the traveling-wave model with gain dispersion (a hyperbolic system of PDEs) to a system of ODEs describing the semiflow on a local center manifold. Then we analyze the dynamics of the system of ODEs using numerical continuation methods (AUTO). We explore the plane of the two parameters-feedback phase and feedback strength-to obtain a bifurcation diagram for small and moderate feedback strength. This diagram permits us to understand the roots of a variety of nonlinear phenomena observed numerically and experimentally such as, e.g., self-pulsations, excitability, hysteresis, or chaos, and to locate them in the parameter plane.

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Section: Conclusion-outlookmentioning

confidence: 99%

“…System (2.1) is well known as the traveling-wave model describing longitudinal dynamical effects in semiconductor lasers (see [4], [18], [29] for further references). Results of numerical simulations have been presented in [2], [3], [4], [5], [24].…”

Section: Conclusion-outlookmentioning

confidence: 99%

Numerical Bifurcation Analysis for Multisection Semiconductor Lasers

Sieber¹

2002

SIAM J. Appl. Dyn. Syst.

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“…3). A single-mode self-pulsation is the main feature of dispersive self-Q-switching, and line broadening is natural because the main idea of dispersive self-Q-switching is the conversion from a wavelength modulation to an amplitude modulation [11], [14]. Figure 3 shows the change of the optical spectrum with the current increase of the reflector section.…”

Section: Detuning Conditionsmentioning

confidence: 99%

“…As a result, the power variation of the feedback light to the lasing section became much stronger, and the carrier depletion in the lasing section was able to recover more quickly. Reference [14] attributed the frequency variability in selfpulsating DFB LDs to the relation between the amount of the injection current to the gain section and the recovery time. We also confirmed the frequency increase with an increased current in the lasing section.…”

Section: Detuning Conditionsmentioning

confidence: 99%

Self-Pulsation in Multisection Distributed Feedback Laser Diode with a Novel Dual Grating Structure

Park¹,

Leem²,

Yee³

et al. 2003

ETRI J

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A self-pulsating multisection distributed-feedback laser diode (DFB LD) can potentially realize all-optical clock extraction. This device generally consists of three sections, two DFB sections and one waveguide section. The most important variable in this device is detuning, which is the relative spectral position between the stop bands of two DFB sections. We fabricated a novel structure in which two gratings were located one over and one under the active layers. Each grating structure was independently defined in processing so that detuning, which is the prerequisite for self-pulsation, could be easily controlled. Observing various self-pulsating phenomena in these devices under several detuning conditions, we characterized the phenomena as dispersive Q-switching, mode beating, and self-mode-locking.

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“…As an example we mention the regime of high-frequency oscillations. Multisection lasers allow one to generate and to control such nonlinear effects by designing the longitudinal structure of the device (see, e.g., [13,23]). …”

Section: Motivationmentioning

confidence: 99%

Dynamics of Multisection Semiconductor Lasers

Sieber

Schneider

2004

Journal of Mathematical Sciences

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Abstract. We consider a mathematical model (the so-called traveling-wave system) which describes longitudinal dynamical effects in semiconductor lasers. This model consists of a linear hyperbolic system of PDEs, which is nonlinearly coupled with a slow subsystem of ODEs. We prove that a corresponding initial-boundary value problem is well posed and that it generates a smooth infinite-dimensional dynamical system. Exploiting the particular slow-fast structure, we derive conditions under which there exists a lowdimensional attracting invariant manifold. The flow on this invariant manifold is described by a system of ODEs. Mode approximations of that system are studied by means of bifurcation theory and numerical tools. CONTENTS

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Modeling self-pulsating DFB lasers with an integrated phase tuning section

Cited by 50 publications

References 17 publications

Numerical Bifurcation Analysis for Multisection Semiconductor Lasers

Numerical Bifurcation Analysis for Multisection Semiconductor Lasers

Self-Pulsation in Multisection Distributed Feedback Laser Diode with a Novel Dual Grating Structure

Dynamics of Multisection Semiconductor Lasers

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