Coherent control in room-temperature quantum dot semiconductor optical amplifiers using shaped pulses

Karni, Ouri; Mishra, Akhilesh; Eisenstein, G.; Ivanov, V.; Reithmaier, Johann Peter

doi:10.1364/optica.3.000570

Cited by 10 publications

(6 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The experimental results were confirmed by previously reported comprehensive numerical model [33,35].…”

supporting

confidence: 86%

“…The pulse separation oscillates with the same periodicity as the intensity and instantaneous frequency but lags behind them by a quarter of a cycle due to the complex nature of the susceptibility. The variation of the output temporal separation is a direct result of the distributed nature of the pulse propagation along the SOA and cannot 4 be observed in any experiment using a single QD.The experimental results were confirmed by previously reported comprehensive numerical model[33,35].The experimental set-up is shown schematically inFig. 1.…”

supporting

confidence: 78%

“…Nevertheless, using 150 f s single excitation pulses, Rabi oscillations were demonstrated by Karni in an InAs/InP QD [29] and by Capua in InAs/InP quantum dash (wire-like nano structures) [30] SOAs employing the cross frequency resolved optical gating (X-FROG) technique and later by Kolarczik in an InAs/GaAs QD SOA [31] using a technique called FROSCH. The role of the gain inhomogeneity and the incoherent interactions was considered by Karni [32] as was a demonstration of coherent control to enhance the Rabi oscillations by using shaped excitation pulses [33].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Ramsey fringes in a room-temperature quantum-dot semiconductor optical amplifier

et al. 2018

Self Cite

View full text Add to dashboard Cite

The ability to induce, observe and control quantum coherent interactions in room temperature, electrically driven optoelectronic devices is of outmost significance for advancing quantum science and engineering towards practical applications. We demonstrate here a quantum interference phenomena, Ramsey fringes, in an inhomogeneously broadened InAs/InP quantum dot (QD) ensemble in the form of a 1.5 mm long optical amplifier operating at room temperature. Observation of Ramsey fringes in semiconductor QD was previously achieved only at cryogenic temperatures and only in isolated single dot systems. A high-resolution pump probe scheme where both pulses are characterized by cross frequency resolved optical gating (X-FROG) reveals a clear oscillatory behavior both in the amplitude and the instantaneous frequency of the probe pulse with a period that equals one optical cycle at operational wavelength. Using nominal input delays of 600 to 900 f s and scanning the separation around each delay in 1 f s steps, we map the evolution of the material de-coherence and extract a coherence time. Moreover we notice a unique phenomenon, which can not be observed in single dot systems, that the temporal position of the output probe pulse also oscillates with the same periodicity but with a quarter cycle delay relative to the intensity variations. This delay is the time domain manifestation of coupling between the real and imaginary parts of the complex susceptibility.

show abstract

“…The experimental results were confirmed by previously reported comprehensive numerical model [33,35].…”

supporting

confidence: 86%

supporting

confidence: 78%

mentioning

confidence: 99%

See 1 more Smart Citation

Ramsey fringes in a room-temperature quantum-dot semiconductor optical amplifier

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…3). We make the assumption that spontaneous and stimulated emission events take place in this region independently of the spectral bandwidth of the incoming pulse, which is reasonable for pulses longer than the typical Rabi oscillation time scale (≈50 fs [39][40][41]). The population at higher energies, referred to as 2 N acts as a carrier reservoir.…”

Section: Qw Rate Equation Modelmentioning

confidence: 99%

Optical efficiency and gain dynamics of modelocked semiconductor disk lasers

et al. 2017

Self Cite

View full text Add to dashboard Cite

Compact optically pumped passively modelocked semiconductor disk lasers (SDLs) based on active quantum wells (QWs) such as vertical external-cavity surface-emitting lasers (VECSELs) or modelocked integrated external-cavity surface-emitting lasers (MIXSELs) are wavelength-versatile sources that offer a unique combination of gigahertz pulse repetition rates and short pulse durations. In this paper, we present record-short pulses of 184 fs from a gigahertz MIXSEL emitting at a center wavelength of 1048 nm. This result comes at the expense of low optical-to-optical pump efficiency (<1%) and average output power limited to 115 mW. We experimentally observe that shorter pulses significantly reduce the macroscopic gain saturation fluence and develop a QW model based on rate equations to reproduce the gain saturation behavior and quantitatively explain the VECSEL and MIXSEL modelocking performances. We identify spectral hole burning as the main cause of the reduced gain at shorter pulse durations, which in combination with the short lifetime of the excited carriers strongly reduces the optical pump efficiency. Our better understanding will help to address these limitations in future ultrafast SDL designs.

show abstract

“…В последнее время удалось наблюдать эффект СИП и возникновение осцилляций Раби в полупроводниковых структурах на квантовых точках [17][18][19][20]. Следует отметить недавние эксперименты, в которых удалось наблюдать осцилляции Раби [21][22][23][24][25] и биения Рамзея [26] (Ramsey fringes) в квантовых точках, взаимодействующих с фемтосекундными длинными импульсами при комнатной температуре.…”

Section: Introductionunclassified

Столкновение Одноцикловых И Субцикловых Аттосекундных Световых Импульсов В Нелинейной Резонансной Среде

Архипов¹,

Архипов²,

Пахомов³

et al. 2018

Журнал Технической Физики

View full text Add to dashboard Cite

Coherent control in room-temperature quantum dot semiconductor optical amplifiers using shaped pulses

Cited by 10 publications

References 29 publications

Ramsey fringes in a room-temperature quantum-dot semiconductor optical amplifier

Ramsey fringes in a room-temperature quantum-dot semiconductor optical amplifier

Optical efficiency and gain dynamics of modelocked semiconductor disk lasers

Столкновение Одноцикловых И Субцикловых Аттосекундных Световых Импульсов В Нелинейной Резонансной Среде

Contact Info

Product

Resources

About