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Thin-Disk Yb:YAG Oscillator-Amplifier Laser, ASE, and Effective Yb:YAG Lifetime

Antonigni, Aldo and Schuhmann, Karsten and Amaro, Fernando and Biraben, Francois and Dax, Andreas and Giesen, Adolf and Graf, Thomas and Hänsch, Theodor and Indelicato, Paul and Julien, Lucile and Kao, Cheng-Yang and Knowles, Paul and Kottmann, Franz and Le Bigot, Eric and Liu, Yi-Wei and Ludhova, Livia and Moschüring, Niels and Mulhauser, Francoise and Nebel, Tobias and Nez, Francois and Rabinowitz, Paul and Schwob, Catherine and Taqqu, David and Pohl, Randolf (2009) Thin-Disk Yb:YAG Oscillator-Amplifier Laser, ASE, and Effective Yb:YAG Lifetime. IEEE Journal of Quantum Electronics, 45 (8), pp. 993-1005. IEEE - Institute of Electrical and Electronics Engineers. doi: DOI:10.1109/JQE.2009.2014881.

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We report on a thin-disk Yb:YAG laser made from a Q-switched oscillator and a multipass amplifier delivering pulses of 48 mJ at 1030 nm. The peculiar requirements for this laser are the short delay time (< 500 ns) between electronic trigger and optical output pulse and the time randomness with which these triggers occur (with trigger to next trigger delay ges 1.5 ms). Details concerning the oscillator dynamics (-switching cycle, intensity stabilization), and the peculiar amplifier layout are given. Simulations of the beam propagation in the amplifier based on the Collins integral and the measured aspherical components of the disk reproduce well the measured beam intensity profiles (with higher order intensity moments) and gains. Measurements of the thermal lens and ASE effects of the disk are also presented. A novel method to deduce the effective Yb:YAG upper state lifetime (under real laser operation and including ASE effects) is presented. That knowledge is necessary to determine gain and stored energy in the active medium and to understand the limiting factors for energy scaling of thin-disk lasers.

Item URL in elib:https://elib.dlr.de/61118/
Document Type:Article
Title:Thin-Disk Yb:YAG Oscillator-Amplifier Laser, ASE, and Effective Yb:YAG Lifetime
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Antonigni, AldoMax Plank Institut für QuantenoptikUNSPECIFIED
Schuhmann, KarstenTechnologiegesellschaft für StrahlwerkzeugeUNSPECIFIED
Amaro, FernandoUniversidade de CoimbraUNSPECIFIED
Biraben, FrancoisLaboratoire Kastler BrosselUNSPECIFIED
Dax, AndreasYale UniversityUNSPECIFIED
Graf, ThomasInstitut für StrahlwerkzeugeUNSPECIFIED
Hänsch, TheodorMax Plank Institut für QuantenoptikUNSPECIFIED
Indelicato, PaulLaboratoire Kastler BrosselUNSPECIFIED
Julien, LucileLaboratoire Kastler BrosselUNSPECIFIED
Kao, Cheng-YangNational Tsing Hua UniversityUNSPECIFIED
Knowles, PaulUniversity de FribourgUNSPECIFIED
Kottmann, FranzPaul Scherrer InstituteUNSPECIFIED
Le Bigot, EricLaboratoire Kastler BrosselUNSPECIFIED
Liu, Yi-WeiNational Tsing Hua UniversityUNSPECIFIED
Ludhova, LiviaUniversity de FribourgUNSPECIFIED
Moschüring, NielsMax Plank Institut für QuantenoptikUNSPECIFIED
Mulhauser, FrancoiseUniversity de FribourgUNSPECIFIED
Nebel, TobiasMax Plank Institut für QuantenoptikUNSPECIFIED
Nez, FrancoisLaboratoire Kastler BrosselUNSPECIFIED
Rabinowitz, PaulPrinceton UniversityUNSPECIFIED
Schwob, CatherineLaboratoire Kastler BrosselUNSPECIFIED
Taqqu, DavidPaul Scherrer InstituteUNSPECIFIED
Pohl, RandolfMax Plank Institut für QuantenoptikUNSPECIFIED
Date:8 August 2009
Journal or Publication Title:IEEE Journal of Quantum Electronics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 993-1005
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Amplified spontaneous emission (ASE), Collins integral, diode-pumped laser, effective Yb:YAG lifetime, multipass amplifier, oscillator, prelasing, thermal lens, thin-disk laser
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Eckel, Dr.rer.nat. Hans-Albert
Deposited On:25 Nov 2009 11:52
Last Modified:06 Sep 2019 15:16

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