Abstract

We present highly robust fiber Bragg gratings (FBGs) in passive large-mode-area fibers for kilowatt fiber laser systems. The gratings were inscribed directly through the fiber coating using near-infrared femtosecond laser pulses and then implemented in an all-fiber ytterbium-doped single-mode oscillator setup reaching up to 5 kW signal output power. The untreated cooled FBGs showed thermal coefficients as low as ${1}\;{\rm K}\;{{\rm kW}^{ - 1}}$, proving excellent qualification for the implementation into robust high-power fiber laser setups.

© 2020 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Femtosecond written fiber Bragg gratings in ytterbium-doped fibers for fiber lasers in the kilowatt regime

Ria G. Krämer, Christian Matzdorf, Andreas Liem, Victor Bock, Wilko Middents, Thorsten A. Goebel, Maximilian Heck, Daniel Richter, Thomas Schreiber, Andreas Tünnermann, and Stefan Nolte
Opt. Lett. 44(4) 723-726 (2019)

High-temperature stable fiber Bragg gratings with ultrastrong cladding modes written using the phase mask technique and an infrared femtosecond laser

Nurmemet Abdukerim, Dan Grobnic, Cyril Hnatovsky, and Stephen J. Mihailov
Opt. Lett. 45(2) 443-446 (2020)

Diode-pumped triple-clad fiber MOPA with an output power scaling up to 4.67  kW

Salıh K. Kalyoncu, Busra Mete, and Aydın Yenıay
Opt. Lett. 45(7) 1870-1873 (2020)

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

Equations (2)

You do not have subscription access to this journal. Equations 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

Metrics

You do not have subscription access to this journal. Article level metrics 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