CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 10713 > Article
Paper
16 May 2018 Highly-efficient Ho:KY(WO4)2 thin-disk lasers at 2.06 μm
Xavier Mateos, Pavel Loiko, Samir Lamrini, Karsten Scholle, Peter Fuhrberg, Soile Suomalainen, Antti Härkönen, Mircea Guina, Sergei Vatnik, Ivan Vedin, Magdalena Aguiló, Francesc Díaz, Yicheng Wang, Uwe Griebner, Valentin Petrov
Author Affiliations +
Proceedings Volume 10713, Pacific-Rim Laser Damage 2018: Optical Materials for High-Power Lasers; 107130J (2018) https://doi.org/10.1117/12.2316822
Event: Pacific Rim Laser Damage 2018: Optical Materials for High Power Lasers, 2018, Yokohama, Japan
Abstract
The recent advances in the development of Holmium monoclinic double tungstate thin-disk lasers are reviewed. The thin-disk is based on a 250-μm-thick 3 at. % Ho:KY(WO4)2 active layer grown on a (010)-oriented KY(WO4)2 substrate. When pumped by a Tm-fiber laser at 1960 nm with a single-bounce pump geometry, the continuous-wave Ho:KY(WO4)2 thin-disk laser generates an output power of 1.01 W at 2057 nm corresponding to a slope efficiency η of 60% and a laser threshold of only 0.15 W. The thin-disk laser is passively Q-switched with a GaSb-based quantum-well semiconductor saturable absorber mirror. In this regime, it generates an average output power of 0.551 W at ~2056 nm with η = 44%. The best pulse characteristics are 4.1 μJ / 201 ns at a repetition rate of 135 kHz. The laser performance, beam quality and thermo-optic aberrations of such lasers are strongly affected by the Ho3+ doping concentration. For the 3 at.% Ho3+-doped thin-disk, the thermal lens is negative (the sensitivity factors for the two principal meridional planes are -1.7 and -0.6 m-1/W) and astigmatic. The Ho:KY(WO4)2 epitaxial structures are promising as active elements in mode-locked thin-disk lasers at ~2060 nm.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Xavier Mateos, Pavel Loiko, Samir Lamrini, Karsten Scholle, Peter Fuhrberg, Soile Suomalainen, Antti Härkönen, Mircea Guina, Sergei Vatnik, Ivan Vedin, Magdalena Aguiló, Francesc Díaz, Yicheng Wang, Uwe Griebner, and Valentin Petrov "Highly-efficient Ho:KY(WO4)2 thin-disk lasers at 2.06 μm", Proc. SPIE 10713, Pacific-Rim Laser Damage 2018: Optical Materials for High-Power Lasers, 107130J (16 May 2018); https://doi.org/10.1117/12.2316822
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
;
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 8 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Holmium
Continuous wave operation
Absorption
Doping
Pulsed laser operation
Spectroscopy
Laser damage threshold
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top