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New compact pump geometry for thin disk lasers with a tilted optical long-pass filter

Ewers, Benjamin and Lorbeer, Raoul-Amadeus and Fischer, Alexander and Speiser, Jochen (2019) New compact pump geometry for thin disk lasers with a tilted optical long-pass filter. Photonics West - Solid State Lasers XXVIII: Technology and Devices, 2-7 Feb. 2019, San Francisco.

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Abstract

Due to the low absorption of pump light in a thin disk laser, the pump light has to be redirected multiple times onto the active medium in order to achieve high pumping efficiency. Therefore, the pump optics in current systems require a large volume compared to the thin disk itself and multiple optics have to be aligned correctly with each other. Our wedged optical lasing chamber for ytterbium disks (WOLCYD) consists of an optical long-pass filter placed at a small angle directly in front of the thin disk. By this, an in-place multiplication of the number of pump passes is achieved. This results in a compact pump optic without the need of sophisticated alignment efforts. We demonstrate a laser oscillator setup and a laser amplifier setup on the basis of the WOLCYD geometry.

Item URL in elib:https://elib.dlr.de/126663/
Document Type:Conference or Workshop Item (Speech)
Title:New compact pump geometry for thin disk lasers with a tilted optical long-pass filter
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ewers, Benjaminbenjamin.ewers (at) dlr.deUNSPECIFIED
Lorbeer, Raoul-Amadeusraoul.lorbeer (at) dlr.dehttps://orcid.org/0000-0003-3674-9796
Fischer, AlexanderA.Fischer (at) dlr.deUNSPECIFIED
Speiser, Jochenjochen.speiser (at) dlr.deUNSPECIFIED
Date:6 February 2019
Refereed publication:No
Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:thin disk laser, laser, pump geometry, laser amplifier
Event Title:Photonics West - Solid State Lasers XXVIII: Technology and Devices
Event Location:San Francisco
Event Type:international Conference
Event Dates:2-7 Feb. 2019
Organizer:SPIE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics > Solid State Lasers and Nonlinear Optics
Deposited By: Lorbeer, Raoul-Amadeus
Deposited On:26 Mar 2019 11:47
Last Modified:24 Jul 2019 12:20

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