Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Laser cooling of a Yb doped silica fiber by 18 Kelvin from room temperature

Abstract

An ytterbium doped silica optical fiber with a core diameter of $900\;\unicode{x00B5}{\rm m}$ has been cooled by 18.4 K below ambient temperature by pumping with 20 W of 1035 nm light in vacuum. In air, cooling by 3.6 K below ambient was observed with the same 20 W pump. The temperatures were measured with a thermal imaging camera and differential luminescence thermometry. The cooling efficiency is calculated to be $1.2 \pm 0.1\%$. The core of the fiber was codoped with ${\rm{A}}{{\rm{l}}^{3 +}}$ for an Al to Yb ratio of 6:1, to allow for a larger Yb concentration and enhanced laser cooling.

© 2021 Optica Publishing Group

Full Article  |  PDF Article
More Like This
Laser cooling experiments to measure the quantum efficiency of Yb-doped silica fibers

Brian Topper, Alexander Neumann, Alexander R. Albrecht, Angel S. Flores, Stefan Kuhn, Denny Häßner, Sigrun Hein, Christian Hupel, Johannes Nold, Nicoletta Haarlammert, Thomas Schreiber, Mansoor Sheik-Bahae, and Arash Mafi
Opt. Lett. 47(14) 3608-3611 (2022)

Laser cooling in a silica optical fiber at atmospheric pressure

Jennifer Knall, Pierre-Baptiste Vigneron, Magnus Engholm, Peter D. Dragic, Nanjie Yu, John Ballato, Martin Bernier, and Michel J. F. Digonnet
Opt. Lett. 45(5) 1092-1095 (2020)

Laser cooling ytterbium doped silica by 67 K from ambient temperature

Brian Topper, Stefan Kuhn, Alexander Neumann, Alexander R. Albrecht, Angel S. Flores, Denny Hässner, Sigrun Hein, Christian Hupel, Johannes Nold, Nicoletta Haarlammert, Thomas Schreiber, Mansoor Sheik-Bahae, and Arash Mafi
Opt. Express 32(3) 3660-3672 (2024)

Data Availability

Data underlying the results presented in this Letter are not publicly available at this time but may be obtained from the authors upon reasonable request.

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 (6)

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 (2)

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 (6)

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved