External optical feedback effects on semiconductor injection laser properties

Lang, R.; Kobayashi, Kenichi

doi:10.1109/jqe.1980.1070479

Cited by 2,593 publications

(1,292 citation statements)

References 16 publications

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“…The emergence of chaotic fluctuations in mW SCLs with timedelayed feedback is well described by deterministic rate equations, the Lang-Kobayashi equations 30 . However, for sub µW lasers, there are two additional sources of fluctuations preventing a possible mathematical description by rate equations.…”

Section: Discussionmentioning

confidence: 99%

“…The second source is the low number of QDs (~10) being effectively involved in the lasing operation 10 . The robustness of the chaotic lasing phenomenon, with respect to quantum noise where a description by rate equations 30 is inconsistent, is of great interest from the point of view of nonlinear dynamics 31,32 . Our results give first insight into the chaotic behaviour of microlasers with self-feedback and have high potential to stimulate further experimental and theoretical studies.…”

Section: Discussionmentioning

confidence: 99%

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Observing chaos for quantum-dot microlasers with external feedback

et al. 2011

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Chaos presents a striking and fascinating phenomenon of nonlinear systems. A common aspect of such systems is the presence of feedback that couples the output signal partially back to the input. Feedback coupling can be well controlled in optoelectronic devices such as conventional semiconductor lasers that provide bench-top platforms for the study of chaotic behaviour and high bit rate random number generation. Here we experimentally demonstrate that chaos can be observed for quantum-dot microlasers operating close to the quantum limit at nW output powers. Applying self-feedback to a quantum-dot microlaser results in a dramatic change in the photon statistics wherein strong, super-thermal photon bunching is indicative of random-intensity fluctuations associated with the spiked emission of light. our experiments reveal that gain competition of few quantum dots in the active layer enhances the influence of self-feedback and will open up new avenues for the study of chaos in quantum systems.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Observing chaos for quantum-dot microlasers with external feedback

et al. 2011

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“…The phenomenon was first characterized by Lang and Kobayashi [16], who analysed the effects of external optical feedback in a laser diode (LD) by means of the delayed differential equations of involved electric field. Later models, such as the one presented by Wang [17] (Fig.1), use an equivalent two cavity Fabry-Perot (FP) scheme that also results in the well known phase equation [18]:…”

Section: Self-mixing Interferometrymentioning

confidence: 99%

A new method for the acquisition of arterial pulse wave using self-mixing interferometry

Arasanz¹,

Azcona²,

Royo³

et al. 2014

Optics & Laser Technology

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In this article we present a technique based on self-mixing interferometry as a method for the acquisition and reconstruction of the arterial pulse wave. A modification, of the classic fringe counting reconstruction algorithm is proposed, to deal with some of the problems caused by biological tissue surface roughness, therefore allowing a reconstruction of the arterial displacement with a resolution of 400nm. The traits of the arterial pulse wave have been retrieved with high detail, allowing their interpretation by a skilled practitioner. The heart beat measurements show a good agreement when compared to the readings of a commercial pulse-meter, therefore proving the versatility and the viability of the technique for the measurement of other cardiovascular signals.

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“…The delayed feedback due to the presence of an external cavity is characterized by: (i) the time delayτ = 2L/c which is the round-trip time in the external cavity, where c is the speed of light and L is the length of the external cavity; (ii) the feedback strengthη = R(1 − R 2 F )/(T R F ) proportional to the reflectivity of the external mirror R and inversely proportional to the Fabry-Perot round trip time T , R F is the reflectivity of the laser cavity facets; and (iii) the phase φ = ω eτ where ω e is the frequency of the injected signal. We adopt the Lang-Kobayashi approach to model the delayed feedback [65]. This approach is based on two approximations: a single longitudinal mode operation and the reflected field is sufficiently attenuated that it can be modeled by a single delay term.…”

Section: Passive Nonlinear Cavity With Delayed Feedbackmentioning

confidence: 99%

Spontaneous motion of localized structures and localized patterns induced by delayed feedback

et al. 2010

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Abstract.We study the properties of 2D dissipative structures in a coherently driven optical resonator subjected to a delayed feedback. It has been predicted that delayed feedback can lead to the spontaneous motion of bright localized structures [M. Tlidi et al., Phys. Rev. Lett. 103, 103904 (2009)]. We study here the phenomenon in detail. In particular, we show that the delayed feedback induces a spontaneous motion of periodic patterns and dark localized structures. We focus our analysis on nascent optical bistability regime where the space time dynamics is described by a variational Swift-Hohenberg equation. In the absence of delayed feedback, dark localized structures and patterns do not move. This behavior occurs when the product of the delay time and the feedback strength exceeds some critical value.

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External optical feedback effects on semiconductor injection laser properties

Cited by 2,593 publications

References 16 publications

Observing chaos for quantum-dot microlasers with external feedback

Observing chaos for quantum-dot microlasers with external feedback

A new method for the acquisition of arterial pulse wave using self-mixing interferometry

Spontaneous motion of localized structures and localized patterns induced by delayed feedback

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