In situ probing of mode-locked vertical-external-cavity-surface-emitting lasers

Caleb Baker; Maik Scheller; Stephan W. Koch; Antje R. Perez; Wolfgang Stolz; R. Jason Jones; Jerome V. Moloney

doi:10.1364/OL.40.005459

In situ probing of mode-locked vertical-external-cavity-surface-emitting lasers

Caleb Baker, Maik Scheller, Stephan W. Koch, Antje R. Perez, Wolfgang Stolz, R. Jason Jones, Jerome V. Moloney

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

We utilize an asynchronous optical sampling technique to study the gain dynamics of vertical-external-cavity-surface-emitting lasers (VECSELs) under mode-locked operation. This allows for an in situ characterization of the gain depletion and recovery over nanoseconds with femtosecond-scale resolution. Our method allows for a more direct study of intracavity gain dynamics than traditional pump/probe measurements. We observe a rapid depletion of the gain on the timescale of the intracavity pulse. Afterward, a rapid recovery over a few picoseconds due to intraband scattering and carrier heating takes place, followed by a long recovery attributed to the continuous supply of carriers by the pump laser.

Original language	English (US)
Pages (from-to)	5459-5462
Number of pages	4
Journal	Optics letters
Volume	40
Issue number	23
DOIs	https://doi.org/10.1364/OL.40.005459
State	Published - Dec 1 2015

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.40.005459

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title = "In situ probing of mode-locked vertical-external-cavity-surface-emitting lasers",

abstract = "We utilize an asynchronous optical sampling technique to study the gain dynamics of vertical-external-cavity-surface-emitting lasers (VECSELs) under mode-locked operation. This allows for an in situ characterization of the gain depletion and recovery over nanoseconds with femtosecond-scale resolution. Our method allows for a more direct study of intracavity gain dynamics than traditional pump/probe measurements. We observe a rapid depletion of the gain on the timescale of the intracavity pulse. Afterward, a rapid recovery over a few picoseconds due to intraband scattering and carrier heating takes place, followed by a long recovery attributed to the continuous supply of carriers by the pump laser.",

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T1 - In situ probing of mode-locked vertical-external-cavity-surface-emitting lasers

AU - Baker, Caleb

AU - Scheller, Maik

AU - Koch, Stephan W.

AU - Perez, Antje R.

AU - Stolz, Wolfgang

AU - Jones, R. Jason

AU - Moloney, Jerome V.

PY - 2015/12/1

Y1 - 2015/12/1

N2 - We utilize an asynchronous optical sampling technique to study the gain dynamics of vertical-external-cavity-surface-emitting lasers (VECSELs) under mode-locked operation. This allows for an in situ characterization of the gain depletion and recovery over nanoseconds with femtosecond-scale resolution. Our method allows for a more direct study of intracavity gain dynamics than traditional pump/probe measurements. We observe a rapid depletion of the gain on the timescale of the intracavity pulse. Afterward, a rapid recovery over a few picoseconds due to intraband scattering and carrier heating takes place, followed by a long recovery attributed to the continuous supply of carriers by the pump laser.

AB - We utilize an asynchronous optical sampling technique to study the gain dynamics of vertical-external-cavity-surface-emitting lasers (VECSELs) under mode-locked operation. This allows for an in situ characterization of the gain depletion and recovery over nanoseconds with femtosecond-scale resolution. Our method allows for a more direct study of intracavity gain dynamics than traditional pump/probe measurements. We observe a rapid depletion of the gain on the timescale of the intracavity pulse. Afterward, a rapid recovery over a few picoseconds due to intraband scattering and carrier heating takes place, followed by a long recovery attributed to the continuous supply of carriers by the pump laser.

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In situ probing of mode-locked vertical-external-cavity-surface-emitting lasers

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