Polarization-dependent carrier dynamics in a passive InAs/InP quantum dot waveguide

H. Ju, J. Molina Vázquez, Z. Li, R. Nötzel, T. Vries, de, D. Lenstra, Q. Gong, P.J. Veldhoven, van, J.H. Wolter, G.D. Khoe, H.J.S. Dorren

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2 Citaties (Scopus)

Uittreksel

The authors investigate carrier dynamics in a passive InAs/InP quantum dot (QD) waveguide using 255 fs optical pulses at a central wavelength of 1568 nm. We observe strong anisotropy of absorption saturation for different polarizations. Pump–probe measurements indicate the presence of carrier relaxation dynamics on a timescale in the order of tens of picoseconds due to cascaded relaxation of carriers generated by two-photon absorption (TPA) from the bulk region to the QDs via the wetting layer. These relaxation timescales are much longer than in QD amplifiers. Our observations are supported by a rate-equation model which includes TPA, showing good agreement with the pump–probe measurements.
Originele taal-2Engels
Pagina's (van-tot)861-867
Aantal pagina's7
TijdschriftOptics Communications
Volume259
Nummer van het tijdschrift2
DOI's
StatusGepubliceerd - 2006

Vingerafdruk

Semiconductor quantum dots
Waveguides
Photons
quantum dots
Polarization
waveguides
polarization
Wetting
Laser pulses
Anisotropy
photons
Wavelength
wetting
amplifiers
saturation
anisotropy
pulses
wavelengths
indium arsenide

Citeer dit

Ju, H., Molina Vázquez, J., Li, Z., Nötzel, R., Vries, de, T., Lenstra, D., ... Dorren, H. J. S. (2006). Polarization-dependent carrier dynamics in a passive InAs/InP quantum dot waveguide. Optics Communications, 259(2), 861-867. https://doi.org/10.1016/j.optcom.2005.09.058
Ju, H. ; Molina Vázquez, J. ; Li, Z. ; Nötzel, R. ; Vries, de, T. ; Lenstra, D. ; Gong, Q. ; Veldhoven, van, P.J. ; Wolter, J.H. ; Khoe, G.D. ; Dorren, H.J.S. / Polarization-dependent carrier dynamics in a passive InAs/InP quantum dot waveguide. In: Optics Communications. 2006 ; Vol. 259, Nr. 2. blz. 861-867.
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abstract = "The authors investigate carrier dynamics in a passive InAs/InP quantum dot (QD) waveguide using 255 fs optical pulses at a central wavelength of 1568 nm. We observe strong anisotropy of absorption saturation for different polarizations. Pump–probe measurements indicate the presence of carrier relaxation dynamics on a timescale in the order of tens of picoseconds due to cascaded relaxation of carriers generated by two-photon absorption (TPA) from the bulk region to the QDs via the wetting layer. These relaxation timescales are much longer than in QD amplifiers. Our observations are supported by a rate-equation model which includes TPA, showing good agreement with the pump–probe measurements.",
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Ju, H, Molina Vázquez, J, Li, Z, Nötzel, R, Vries, de, T, Lenstra, D, Gong, Q, Veldhoven, van, PJ, Wolter, JH, Khoe, GD & Dorren, HJS 2006, 'Polarization-dependent carrier dynamics in a passive InAs/InP quantum dot waveguide', Optics Communications, vol. 259, nr. 2, blz. 861-867. https://doi.org/10.1016/j.optcom.2005.09.058

Polarization-dependent carrier dynamics in a passive InAs/InP quantum dot waveguide. / Ju, H.; Molina Vázquez, J.; Li, Z.; Nötzel, R.; Vries, de, T.; Lenstra, D.; Gong, Q.; Veldhoven, van, P.J.; Wolter, J.H.; Khoe, G.D.; Dorren, H.J.S.

In: Optics Communications, Vol. 259, Nr. 2, 2006, blz. 861-867.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Polarization-dependent carrier dynamics in a passive InAs/InP quantum dot waveguide

AU - Ju, H.

AU - Molina Vázquez, J.

AU - Li, Z.

AU - Nötzel, R.

AU - Vries, de, T.

AU - Lenstra, D.

AU - Gong, Q.

AU - Veldhoven, van, P.J.

AU - Wolter, J.H.

AU - Khoe, G.D.

AU - Dorren, H.J.S.

PY - 2006

Y1 - 2006

N2 - The authors investigate carrier dynamics in a passive InAs/InP quantum dot (QD) waveguide using 255 fs optical pulses at a central wavelength of 1568 nm. We observe strong anisotropy of absorption saturation for different polarizations. Pump–probe measurements indicate the presence of carrier relaxation dynamics on a timescale in the order of tens of picoseconds due to cascaded relaxation of carriers generated by two-photon absorption (TPA) from the bulk region to the QDs via the wetting layer. These relaxation timescales are much longer than in QD amplifiers. Our observations are supported by a rate-equation model which includes TPA, showing good agreement with the pump–probe measurements.

AB - The authors investigate carrier dynamics in a passive InAs/InP quantum dot (QD) waveguide using 255 fs optical pulses at a central wavelength of 1568 nm. We observe strong anisotropy of absorption saturation for different polarizations. Pump–probe measurements indicate the presence of carrier relaxation dynamics on a timescale in the order of tens of picoseconds due to cascaded relaxation of carriers generated by two-photon absorption (TPA) from the bulk region to the QDs via the wetting layer. These relaxation timescales are much longer than in QD amplifiers. Our observations are supported by a rate-equation model which includes TPA, showing good agreement with the pump–probe measurements.

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DO - 10.1016/j.optcom.2005.09.058

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