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Mode-locked VECSEL SESAM with intracavity antenna for Terahertz emission

Mode-locked VECSEL SESAM with intracavity antenna for Terahertz emission
Mode-locked VECSEL SESAM with intracavity antenna for Terahertz emission
Mode-locked Vertical External-Cavity Surface-Emitting Lasers (ML-VECSELs) have seen advances in pulse energy and peak power thanks to improved power handling techniques and structure designs. The significant increase in gain and intra-cavity power, coupled with the VECSEL’s accessible external-cavity, has made the addition of intra-cavity elements for frequency conversion possible even for lossy conversion mechanisms. In this paper, we report a gold-patterned Semiconductor Saturable Absorbing Mirror (SESAM) that functions both as a slow saturable absorber in a ML-VECSEL and as an intracavity strip line Photo-Conductive Antenna (PCA) for THz emission. Here we describe the design of the strip emitter, THz-Time Domain Spectroscopy (TDS) performed with a ML-Yb fibre laser and the mode-locked characterisation of a ML-VECSEL built with the patterned SESAM.
SPIE
Chen-Sverre, Theo
f515a9e9-da44-4af8-b444-8e1daa93222d
Turnbull, Andrew
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Gow, Paul C.
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Mavrona, Eleni
bd9ffcf5-ba1f-4089-8846-eb550f63f425
Head, Christopher R.
a32d57ad-9449-4d10-9eb0-ce8c95a1c0e0
Apostolopoulos, Vasileios
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Tropper, Anne
f3505426-e0d5-4e91-aed3-aecdb44b393c
Jetter, Michael
Chen-Sverre, Theo
f515a9e9-da44-4af8-b444-8e1daa93222d
Turnbull, Andrew
f6cf30f9-1906-44ac-aecd-0e74b2a938c3
Gow, Paul C.
193394b1-fe2d-41de-a9aa-6de7e5925b18
Mavrona, Eleni
bd9ffcf5-ba1f-4089-8846-eb550f63f425
Head, Christopher R.
a32d57ad-9449-4d10-9eb0-ce8c95a1c0e0
Apostolopoulos, Vasileios
8a898740-4c71-4040-a577-9b9d70530b4d
Tropper, Anne
f3505426-e0d5-4e91-aed3-aecdb44b393c
Jetter, Michael

Chen-Sverre, Theo, Turnbull, Andrew, Gow, Paul C., Mavrona, Eleni, Head, Christopher R., Apostolopoulos, Vasileios and Tropper, Anne (2017) Mode-locked VECSEL SESAM with intracavity antenna for Terahertz emission. Jetter, Michael (ed.) In Vertical External Cavity Surface Emitting Lasers (VECSELs) VII. vol. 10087, SPIE.. (doi:10.1117/12.2252346).

Record type: Conference or Workshop Item (Paper)

Abstract

Mode-locked Vertical External-Cavity Surface-Emitting Lasers (ML-VECSELs) have seen advances in pulse energy and peak power thanks to improved power handling techniques and structure designs. The significant increase in gain and intra-cavity power, coupled with the VECSEL’s accessible external-cavity, has made the addition of intra-cavity elements for frequency conversion possible even for lossy conversion mechanisms. In this paper, we report a gold-patterned Semiconductor Saturable Absorbing Mirror (SESAM) that functions both as a slow saturable absorber in a ML-VECSEL and as an intracavity strip line Photo-Conductive Antenna (PCA) for THz emission. Here we describe the design of the strip emitter, THz-Time Domain Spectroscopy (TDS) performed with a ML-Yb fibre laser and the mode-locked characterisation of a ML-VECSEL built with the patterned SESAM.

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More information

Published date: 22 February 2017
Organisations: Optoelectronics Research Centre, Physics & Astronomy, Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 406729
URI: http://eprints.soton.ac.uk/id/eprint/406729
PURE UUID: 6a096601-bd5d-4e99-b4aa-ab7e687c7b5f
ORCID for Paul C. Gow: ORCID iD orcid.org/0000-0002-3247-9082
ORCID for Vasileios Apostolopoulos: ORCID iD orcid.org/0000-0003-3733-2191

Catalogue record

Date deposited: 21 Mar 2017 02:05
Last modified: 16 Mar 2024 04:10

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Contributors

Author: Theo Chen-Sverre
Author: Andrew Turnbull
Author: Paul C. Gow ORCID iD
Author: Eleni Mavrona
Author: Christopher R. Head
Author: Anne Tropper
Editor: Michael Jetter

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