Diode-pumped ultrafast Yb:KGW laser with 56 fs pulses and multi-100 kW peak power based on SESAM and Kerr-lens mode locking

R. Akbari, K.A. Fedorova, E.U. Rafailov, A. Major*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

A high-power sub-60 fs mode-locked diode-pumped Yb:KGW laser based on hybrid action of an InGaAs quantum-dot saturable absorber mirror and Kerr-lens mode locking was demonstrated. The laser delivered 56 fs pulses with 1.95 W of average power corresponding to 450 kW of peak power. The width of the generated laser spectrum was 20.5 nm, which was near the gain bandwidth limit of the Yb:KGW crystal. To the best of our knowledge, these are the shortest pulses generated from the monoclinic double tungstate crystals (and Yb:KGW laser crystal in particular) and the most powerful in the sub-60 fs regime. At the same time, they are also the shortest pulses produced to date with the help of a quantum-dot-based saturable absorber. High-power operation with a pulse duration of 90 fs and 2.85 W of average output power was also demonstrated.

Original languageEnglish
Article number123
Number of pages6
JournalApplied Physics B
Volume123
Issue number4
Early online date30 Mar 2017
DOIs
Publication statusPublished - Apr 2017

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Laser mode locking
locking
Laser pulses
Lenses
Diodes
diodes
lenses
Saturable absorbers
Lasers
pulses
Crystals
Semiconductor quantum dots
lasers
absorbers
quantum dots
crystals
tungstates
Laser modes
pulse duration
Mirrors

Bibliographical note

The final publication is available at Springer via http://dx.doi.org/10.1007/s00340-017-6701-3

Cite this

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title = "Diode-pumped ultrafast Yb:KGW laser with 56 fs pulses and multi-100 kW peak power based on SESAM and Kerr-lens mode locking",
abstract = "A high-power sub-60 fs mode-locked diode-pumped Yb:KGW laser based on hybrid action of an InGaAs quantum-dot saturable absorber mirror and Kerr-lens mode locking was demonstrated. The laser delivered 56 fs pulses with 1.95 W of average power corresponding to 450 kW of peak power. The width of the generated laser spectrum was 20.5 nm, which was near the gain bandwidth limit of the Yb:KGW crystal. To the best of our knowledge, these are the shortest pulses generated from the monoclinic double tungstate crystals (and Yb:KGW laser crystal in particular) and the most powerful in the sub-60 fs regime. At the same time, they are also the shortest pulses produced to date with the help of a quantum-dot-based saturable absorber. High-power operation with a pulse duration of 90 fs and 2.85 W of average output power was also demonstrated.",
author = "R. Akbari and K.A. Fedorova and E.U. Rafailov and A. Major",
note = "The final publication is available at Springer via http://dx.doi.org/10.1007/s00340-017-6701-3",
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Diode-pumped ultrafast Yb:KGW laser with 56 fs pulses and multi-100 kW peak power based on SESAM and Kerr-lens mode locking. / Akbari, R.; Fedorova, K.A.; Rafailov, E.U.; Major, A.

In: Applied Physics B, Vol. 123, No. 4, 123, 04.2017.

Research output: Contribution to journalArticle

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AU - Akbari, R.

AU - Fedorova, K.A.

AU - Rafailov, E.U.

AU - Major, A.

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AB - A high-power sub-60 fs mode-locked diode-pumped Yb:KGW laser based on hybrid action of an InGaAs quantum-dot saturable absorber mirror and Kerr-lens mode locking was demonstrated. The laser delivered 56 fs pulses with 1.95 W of average power corresponding to 450 kW of peak power. The width of the generated laser spectrum was 20.5 nm, which was near the gain bandwidth limit of the Yb:KGW crystal. To the best of our knowledge, these are the shortest pulses generated from the monoclinic double tungstate crystals (and Yb:KGW laser crystal in particular) and the most powerful in the sub-60 fs regime. At the same time, they are also the shortest pulses produced to date with the help of a quantum-dot-based saturable absorber. High-power operation with a pulse duration of 90 fs and 2.85 W of average output power was also demonstrated.

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