Abstract

We experimentally demonstrate an all-fiber high-power fiber amplifier with high beam quality and a slope efficiency of 81.8%, using a fiber-Bragg-grating-stabilized laser diode as a narrow spectral linewidth (0.08 nm) seed source. During amplification, the spectral linewidth of the laser output is broadened from 0.08 to 0.24 nm due to nonlinear phenomena. To the best of our knowledge, we report the first experimental observation of the suppression of stimulated Brillouin scattering (SBS), with increased output power. In addition, we investigated the SBS suppression by simultaneously measuring the optical backscattered power, backscattered spectrum, and output spectrum at different values of output power. The beam quality, M2, was measured to be 1.28 at the maximum output power of 2.05 kW, and modal instability was not observed.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
2.19 kW narrow linewidth FBG-based MOPA configuration fiber laser

Yusheng Huang, Ping Yan, Zehui Wang, Jiading Tian, Dan Li, Qirong Xiao, and Mali Gong
Opt. Express 27(3) 3136-3145 (2019)

560  W all fiber and polarization-maintaining amplifier with narrow linewidth and near-diffraction-limited beam quality

Yang Ran, Rumao Tao, Pengfei Ma, Xiaolin Wang, Rongtao Su, Pu Zhou, and Lei Si
Appl. Opt. 54(24) 7258-7263 (2015)

kW-level narrow linewidth fiber amplifier seeded by a fiber Bragg grating based oscillator

Jinping Hao, Hong Zhao, Dayong Zhang, Liming Zhang, and Kun Zhang
Appl. Opt. 54(15) 4857-4862 (2015)

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 (1)

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