Abstract

An ytterbium-doped large-mode area photonic bandgap fiber is used to demonstrate 400 W of single-frequency output at 1064 nm with excellent beam quality and minimal stimulated Brillouin scattering. The fiber possesses all-solid microstructures embedded in the cladding and a core composed of phosphosilicate with a diameter of 50μm. As the signal power is pushed beyond 450 W, there is degradation in the beam quality due to the modal instability. We briefly discuss techniques to alleviate this problem in future designs. To the best of our knowledge, the 400-W single-frequency near diffraction-limited output far exceeds the current state-of-the-art from such type of fiber amplifier.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
414  W near-diffraction-limited all-fiberized single-frequency polarization-maintained fiber amplifier

Long Huang, Hanshuo Wu, Ruixian Li, Lei Li, Pengfei Ma, Xiaolin Wang, Jinyong Leng, and Pu Zhou
Opt. Lett. 42(1) 1-4 (2017)

Modal instability-suppressing, single-frequency photonic crystal fiber amplifier with 811  W output power

Craig Robin, Iyad Dajani, and Benjamin Pulford
Opt. Lett. 39(3) 666-669 (2014)

Single-frequency 332  W, linearly polarized Yb-doped all-fiber amplifier with near diffraction-limited beam quality

Pengfei Ma, Pu Zhou, Yanxing Ma, Rongtao Su, Xiaojun Xu, and Zejin Liu
Appl. Opt. 52(20) 4854-4857 (2013)

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

Supplementary Material (1)

» Media 1: AVI (1337 KB)     

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 (8)

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

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