Dynamic behaviors of semiconductor lasers under strong sinusoidal current modulation: modeling and experiments at 1.3 mu m

Hemery, Eric; Chusseau, Laurent; Lourtioz, J.‐M.

doi:10.1109/3.53379

Cited by 77 publications

(36 citation statements)

References 33 publications

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“…The shown signal corresponds to f m =0.2f r with m=0. 4, and was observed also in the experiments of Henery et al [18] and predicted by Ahmed and El_Lafi in single-mode lasers [11]. In this case also, the laser output is mainly contained in mode p=+2 (SMSR=280) as indicated in the output spectrum of figure 3(g).…”

Section: Types Of Laser Waveforms and Modal Oscillation Under Modulationsupporting

confidence: 62%

“…The left hand side column plots the temporal trajectory of the total photon number S(t), the next column plots the transients of the strongest three oscillating modes, the third column plots the output spectrum of mode intensities, while the right hand side column plots the FFT power spectrum S f of the investigated types of the modulated waveform. experiments by Henery et al [18] and simulated by Ahmed and El-Lafi [12]. In this case, the laser output is mainly contained in mode p=+2 (SMSR=338) as indicated in the output spectrum of figure 3(c).…”

Section: Types Of Laser Waveforms and Modal Oscillation Under Modulationmentioning

confidence: 85%

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Mode oscillation and harmonic distortions associated with sinusoidal modulation of semiconductor lasers

Ahmed

Yamada

2012

Eur. Phys. J. D

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Abstract. This paper investigates mode dynamics, operation characteristics and signal distortions associated with sinusoidal modulation of semiconductor lasers. The study is based on intensive integrations of the multimode rate equation model of semiconductor lasers over wide ranges of the modulation frequency and depth. The rate equations take into account both spectral symmetric and asymmetric suppressions of modal gain. The higher harmonic distortions as well as the half harmonic distortion associated with the period doubling effect are investigated. The study is applied to both cases of single-mode and multimode oscillations of the non-modulated laser. The obtained results showed that the modulated signal has six distinct waveforms depending on the modulation conditions; three types have continuous periodic waveforms and the others have periodic pulsing waveforms. The modulated laser is found to oscillate in a single mode under weak modulation where the modulated signal is continuous, whereas the pulsing signals are associated with multimode oscillation. The higher harmonic distortions of single-mode laser are lower than those of two-mode lasers, and become serious at modulation frequencies around the relaxation oscillation frequency. These distortions are highest when the laser output is pulsating and the pulses are superposed by relaxation oscillations.2

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Section: Types Of Laser Waveforms and Modal Oscillation Under Modulationsupporting

confidence: 62%

Section: Types Of Laser Waveforms and Modal Oscillation Under Modulationmentioning

confidence: 85%

Mode oscillation and harmonic distortions associated with sinusoidal modulation of semiconductor lasers

Ahmed

Yamada

2012

Eur. Phys. J. D

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“…Henery et al [11] and predicted by Ahmed and El_Lafi in single-mode lasers [13]. In this case also, the laser output is mainly contained in mode p=+2 (SMSR=237) as indicated in the output spectrum of figure 3(b).…”

Section: Modulation Characteristics and Harmonic Distortion 421 Lamentioning

confidence: 71%

“…It was observed in experiments that the modulated signal of the laser has nonlinear forms with different degrees of signal distortion and noise levels in both regimes of low and high modulation frequencies [10,11]. Explanation of such effects in modulated laser diodes that support more than one mode oscillations and in the deploying fiber links was given phenomenologically in terms of the laser nonlinearity and mode competition [9].…”

mentioning

confidence: 99%

Theoretical analysis of mode-competition noise in modulated laser diodes and its influence on the noise performance of fibre links

Ahmed

Yamada

2012

J. Phys. D: Appl. Phys.

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Abstract. We analyze the mode competition (MC) phenomenon in sinusoidally modulated laser diodes and the associated noise. Contribution of MC noise to the noise performance of directly modulated fiber links is evaluated in terms of the noise factor (NF) of the link. MC is analyzed through intensive simulation of laser dynamics and noise basing on a multimode rate equation model that takes into account both symmetric and asymmetric suppressions of the cross-modal gain. Variations of the MC relative intensity noise (RIN) of both the total output and the oscillating modes with modulation conditions are investigated. The obtained results showed that the modulated signal has six distinct waveforms depending on the modulation conditions. The modulated laser oscillates in single mode when the signal is continuous, and converts into multimode when the signal is pulsing. Contribution of MC noise to NF of the link increases with the increase in the modulation depth and with the decrease in the modulation frequency, except when the signal has period doubling. This contribution is negligible under high modulation frequencies when the laser signal is continuous and uniform, and is most enhanced (~53 dB) under low-modulation frequencies when the signal is pulsing and superposed with non-uniform relaxation oscillations.

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“…These include higher modulation bandwidths and lower threshold currents, both of which are desirable qualities for high-speed optical fibre links. Directly modulated laser diodes are operated under conditions that can lead to a wide variety of nonlinear behaviour, including period doubling [1] and chaos [2]. It is therefore vital to have an accurate model of nonlinear behaviour that is numerically efficient, and for the most part rate equations are used by most workers.…”

Section: Introductionmentioning

confidence: 99%

Rate Equation Modelling of NonlinearDynamics in Directly Modulated MultipleQuantum Well Laser Diodes

1998

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A theoretical (using rate equations) and experimental study of the nonlinear dynamics of a distributed feedback multiple quantum well laser diode is presented. The analysis is performed under direct modulation. Period doubling and period tripling are identified in both the measurements and simulations. Period doubling is found over a wide range of modulation frequencies in the laser. Computational results using rate equations show good agreement with the experimental results.

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Dynamic behaviors of semiconductor lasers under strong sinusoidal current modulation: modeling and experiments at 1.3 mu m

Cited by 77 publications

References 33 publications

Mode oscillation and harmonic distortions associated with sinusoidal modulation of semiconductor lasers

Mode oscillation and harmonic distortions associated with sinusoidal modulation of semiconductor lasers

Theoretical analysis of mode-competition noise in modulated laser diodes and its influence on the noise performance of fibre links

Rate Equation Modelling of NonlinearDynamics in Directly Modulated MultipleQuantum Well Laser Diodes

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