Self-slowdown and -advancement of fs pulses in a quantum-dot semiconductor optical amplifier

Mike van der Poel, Jesper Mørk, Jørn Märcher Hvam

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

We demonstrate changes in the propagation time of 180 femtosecond pulses in a quantum-dot semiconductor optical amplifier as function of pulse input power and bias current. The results interpreted as a result of pulse reshaping by gain saturation but are also analogous to coherent population oscillations. Relative pulse delays (i.e. pulse time delay to pulse FWHM ratio) up to 40% and relative advancements up to 15% are observed when the amplifier is biased at zero current and at currents well above transparency, respectively. Under gain conditions, no pulsedistortion is seen while a considerable pulse distortion occurs at zero bias.
Original languageEnglish
Title of host publicationNanostructures: Physics and Technology - 13th International Symposium, Proceedings
Place of PublicationSt. Petersburg, Russia
PublisherIoffe Physico-Technical Institute
Publication date2005
Pages81-82
ISBN (Print)59-36-34017-1
Publication statusPublished - 2005
EventNanostructures: Physics and Technology - St. Petersburg, Russia, Russian Federation
Duration: 20 Jun 200525 Jun 2005
Conference number: 13th International Symposium

Conference

ConferenceNanostructures: Physics and Technology
Number13th International Symposium
CountryRussian Federation
CitySt. Petersburg, Russia
Period20/06/200525/06/2005

Cite this

Poel, M. V. D., Mørk, J., & Hvam, J. M. (2005). Self-slowdown and -advancement of fs pulses in a quantum-dot semiconductor optical amplifier. In Nanostructures: Physics and Technology - 13th International Symposium, Proceedings (pp. 81-82). St. Petersburg, Russia: Ioffe Physico-Technical Institute.
Poel, Mike van der ; Mørk, Jesper ; Hvam, Jørn Märcher. / Self-slowdown and -advancement of fs pulses in a quantum-dot semiconductor optical amplifier. Nanostructures: Physics and Technology - 13th International Symposium, Proceedings. St. Petersburg, Russia : Ioffe Physico-Technical Institute, 2005. pp. 81-82
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Poel, MVD, Mørk, J & Hvam, JM 2005, Self-slowdown and -advancement of fs pulses in a quantum-dot semiconductor optical amplifier. in Nanostructures: Physics and Technology - 13th International Symposium, Proceedings. Ioffe Physico-Technical Institute, St. Petersburg, Russia, pp. 81-82, Nanostructures: Physics and Technology, St. Petersburg, Russia, Russian Federation, 20/06/2005.

Self-slowdown and -advancement of fs pulses in a quantum-dot semiconductor optical amplifier. / Poel, Mike van der; Mørk, Jesper; Hvam, Jørn Märcher.

Nanostructures: Physics and Technology - 13th International Symposium, Proceedings. St. Petersburg, Russia : Ioffe Physico-Technical Institute, 2005. p. 81-82.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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N2 - We demonstrate changes in the propagation time of 180 femtosecond pulses in a quantum-dot semiconductor optical amplifier as function of pulse input power and bias current. The results interpreted as a result of pulse reshaping by gain saturation but are also analogous to coherent population oscillations. Relative pulse delays (i.e. pulse time delay to pulse FWHM ratio) up to 40% and relative advancements up to 15% are observed when the amplifier is biased at zero current and at currents well above transparency, respectively. Under gain conditions, no pulsedistortion is seen while a considerable pulse distortion occurs at zero bias.

AB - We demonstrate changes in the propagation time of 180 femtosecond pulses in a quantum-dot semiconductor optical amplifier as function of pulse input power and bias current. The results interpreted as a result of pulse reshaping by gain saturation but are also analogous to coherent population oscillations. Relative pulse delays (i.e. pulse time delay to pulse FWHM ratio) up to 40% and relative advancements up to 15% are observed when the amplifier is biased at zero current and at currents well above transparency, respectively. Under gain conditions, no pulsedistortion is seen while a considerable pulse distortion occurs at zero bias.

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BT - Nanostructures: Physics and Technology - 13th International Symposium, Proceedings

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Poel MVD, Mørk J, Hvam JM. Self-slowdown and -advancement of fs pulses in a quantum-dot semiconductor optical amplifier. In Nanostructures: Physics and Technology - 13th International Symposium, Proceedings. St. Petersburg, Russia: Ioffe Physico-Technical Institute. 2005. p. 81-82