Abstract

For the first time, to the best of our knowledge, laser cooling is reported in a silica optical fiber. The fiber has a 21-µm diameter core doped with 2.06 wt.% ${{\rm Yb}^{3 + }}$ and co-doped with ${{\rm Al}_2}{{\rm O}_3}$ and ${{\rm F}^ - }$ to increase the critical quenching concentration by a factor of 16 over the largest reported values for the Yb-doped silica. Using a custom slow-light fiber Bragg grating sensor, temperature changes up to $ - {50}\;{\rm mK}$ were measured with 0.33 W/m of absorbed pump power per unit length at 1040 nm. The measured dependencies of the temperature change on the pump power and the pump wavelength are in excellent agreement with predictions from an existing model, and they reflect the fiber’s groundbreaking quality for the radiation-balanced fiber lasers.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Experimental comparison of silica fibers for laser cooling

Jennifer Knall, Magnus Engholm, John Ballato, Peter D. Dragic, Nanjie Yu, and Michel J. F. Digonnet
Opt. Lett. 45(14) 4020-4023 (2020)

Radiation-balanced silica fiber laser

J. Knall, M. Engholm, T. Boilard, M. Bernier, P.-B. Vigneron, N. Yu, P. D. Dragic, J. Ballato, and M. J. F. Digonnet
Optica 8(6) 830-833 (2021)

Demonstration of anti-Stokes cooling in Yb-doped ZBLAN fibers at atmospheric pressure

Jennifer Knall, Arushi Arora, Martin Bernier, Solenn Cozic, and Michel J. F. Digonnet
Opt. Lett. 44(9) 2338-2341 (2019)

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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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

Figures (4)

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

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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