Abstract

Composite active elements (AEs) of thin-disk geometry with an anti-amplified-spontaneous-emission (ASE) cap were created for the first time from dissimilar materials (Yb:YAG and sapphire crystals) using the surface-activated direct bonding method based on etching the surfaces with an Ar ion beam and then bringing them into optical contact. Using a sapphire anti-ASE cap allows the thermal lens optical power and the ${{\rm M}^2}$ factor to be reduced significantly compared with the same AE with a YAG anti-ASE cap, and ${{\rm M}^2}$ compared to standard Yb:YAG disks without an anti-ASE cap. Lasing with 320 W average power and ${\sim}{50}\% $ slope efficiency was obtained.

© 2020 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Cryogenic Yb:YAG composite-thin-disk for high energy and average power amplifiers

Luis E. Zapata, Hua Lin, Anne-Laure Calendron, Huseyin Cankaya, Michael Hemmer, Fabian Reichert, W. Ronny Huang, Eduardo Granados, Kyung-Han Hong, and Franz X. Kärtner
Opt. Lett. 40(11) 2610-2613 (2015)

Mode-locked Yb:YAG thin-disk oscillator with 41 µJ pulse energy at 145 W average infrared power and high power frequency conversion

Dominik Bauer, Ivo Zawischa, Dirk H. Sutter, Alexander Killi, and Thomas Dekorsy
Opt. Express 20(9) 9698-9704 (2012)

Role of undoped cap in the scaling of thin-disk lasers

Dmitrii Kouznetsov and Jean-François Bisson
J. Opt. Soc. Am. B 25(3) 338-345 (2008)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription