Gain stabilization of a semiconductor optical amplifier by distributed feedback

Bauer, Barry J.; Henry, Francis P.; Schimpe, R.

doi:10.1109/68.275422

Cited by 31 publications

(5 citation statements)

References 3 publications

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“…Normally the saturation of the GCSOA starts at relatively higher power levels but occurs within a smaller power interval than in normal SOA's [10]. In our time-domain model, the saturation power is derived from the amplification versus input power.…”

Section: B Numerical Resultsmentioning

confidence: 99%

Numerical and theoretical study of the crosstalk in gain clamped semiconductor optical amplifiers

Sun

Morthier

Baets

1997

IEEE J. Select. Topics Quantum Electron.

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Abstract-A rate equation model of a gain clamped semiconductor optical amplifier (GCSOA) is presented. Both a timedomain and a small-signal analysis of those rate equations are used to investigate the crosstalk between different signal channels. It is shown that the crosstalk of GCSOA's strongly depends on the bit rate of the amplified signals and is lower at both very high bit rates and low bit rates. This crosstalk is proportional with the input power and, approximately, with the amplification.

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Section: B Numerical Resultsmentioning

confidence: 99%

Numerical and theoretical study of the crosstalk in gain clamped semiconductor optical amplifiers

Sun

Morthier

Baets

1997

IEEE J. Select. Topics Quantum Electron.

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“…This may be a simple way to modify the dispersion of an input optical pulse to the array. Laser action can also clamp the gain, which may help in stabilizing the operation of an amplifying CROW much like gainclamped semiconductor optical amplifiers [15][16][17].…”

Section: Discussionmentioning

confidence: 99%

Active coupled-resonator optical waveguides II Current injection InP-InGaAsP Fabry-Perot resonator arrays

et al. 2007

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We investigate active, electrically pumped coupled-resonator optical waveguides (CROWs) in the form of InP-InGaAsP Fabry-Perot resonator arrays. We discuss the fabrication of these devices and present measurements of the transmission spectra. The signal-to-noise ratio is found to be a strong function of wavelength and degraded rapidly along the resonator chain away from the input. Our results highlight a number of ingredients toward practical implementations loss-compensated and amplifying CROWs.

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“…This equation includes the frequency-dependent refractive index changes due to the dipole band-to-band transition and plasma effects. The band-to-band refractive index change can be obtained by the Kramers-Kronig relationship [17]. The Drude model is used to calculate the plasma effect [18]:…”

Section: Step Quantum Well Soas Modelmentioning

confidence: 99%

Theoretical investigation on gain recovery dynamics in step quantum well semiconductor optical amplifiers

2012

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In this paper, gain recovery dynamic characteristics in the step quantum well (QW) semiconductor optical amplifier (SOA) are theoretically investigated via a detailed model. We numerically solve the coupled rate equations including microscopically calculated carrier-phonon scattering rates between the carrier reservoir and the ground state on the basis of Fermi's golden rule. The carrier-phonon scattering rates are given as functions of the width and height of the step in the QW of the SOA. It is demonstrated that the electron scattering rate in the step QW SOA depends on the potential parameters of the carrier reservoir region. Finally, it is shown that the SOA with a larger transition rate has a shorter carrier recovery time than the other SOAs via analyzing and comparing the gain and phase recovery dynamics in different types of SOA samples.

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Gain stabilization of a semiconductor optical amplifier by distributed feedback

Cited by 31 publications

References 3 publications

Numerical and theoretical study of the crosstalk in gain clamped semiconductor optical amplifiers

Numerical and theoretical study of the crosstalk in gain clamped semiconductor optical amplifiers

Active coupled-resonator optical waveguides II Current injection InP-InGaAsP Fabry-Perot resonator arrays

Theoretical investigation on gain recovery dynamics in step quantum well semiconductor optical amplifiers

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