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New phase modulator with large stroke and high bandwidth for improved coherent coupling schemes

Ewers, Benjamin and Lorbeer, Raoul-Amadeus and Speiser, Jochen (2019) New phase modulator with large stroke and high bandwidth for improved coherent coupling schemes. In: 2019 Conference on Lasers and Electro-Optics, CLEO 2019, cap₄₁. Optica Publishing Group. 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, München. doi: 10.1109/CLEOE-EQEC.2019.8872322.

Full text not available from this repository.

Official URL: http://opg.optica.org/abstract.cfm?URI=CLEO_Europe-2019-ca_p_41

Abstract

Throughout the past years the scaling of laser brightness by building larger laser oscillators stagnated. Therefore, alternative methods termed coherent beam combining moved to the centre of interest in research to increase the laser brightness using multiple separate laser systems. Especially, in the case of master oscillator (MO) power amplifier (PA) systems the control of phase noise introduced by the power amplifier posts a promising approach \[1, 2\]. Our thin disc PA system tends to introduce large phase strokes over a large range of frequencies, which typically would be approached by the use of a ‘‘woofer / tweeter'' arrangement. Woofer and tweeter setups add to the complexity of the servo loop. Therefore, we decided to amplify the phase stroke of a piezo phase modulator optically to work towards a high phase stroke of several lambda as well as several 10 kHz of servo loop bandwidth.

Item URL in elib:https://elib.dlr.de/185469/
Document Type:Conference or Workshop Item (Poster)
Title:New phase modulator with large stroke and high bandwidth for improved coherent coupling schemes
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Ewers, BenjaminUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lorbeer, Raoul-AmadeusUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Speiser, JochenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:27 June 2019
Journal or Publication Title:2019 Conference on Lasers and Electro-Optics, CLEO 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI:10.1109/CLEOE-EQEC.2019.8872322
Page Range:cap₄₁
Publisher:Optica Publishing Group
Status:Published
Keywords:Brightness; Laser beams; Laser systems; Modulators; Oscillators; Phase noise
Event Title:2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
Event Location:München
Event Type:international Conference
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L DT - Defense Technology
DLR - Research theme (Project):L - Effect
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics > Solid State Lasers and Nonlinear Optics
Deposited By: Ewers, Benjamin
Deposited On:02 Mar 2022 15:15
Last Modified:21 Jul 2023 11:38

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