Laser cooling in a silica optical fiber a atmospheric pressure

被引：49

作者：

Knall, Jennifer ^{[1
]}

Vigneron, Pierre-Baptiste ^{[1
]}

Engholm, Magnus ^{[2
]}

Dragic, Peter D. ^{[3
]}

Yu, Nanjie ^{[3
]}

Ballato, John ^{[4
]}

Bernier, Martin ^{[5
]}

Digonnet, Michel J. F. ^{[1
]}

机构：

[1] Stanford Univ, Edward L Ginzton Lab, Stanford, CA 94305 USA

[2] Mid Sweden Univ, Div Elect Design, SE-85170 Sundsvall, Sweden

[3] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

[4] Clemson Univ, Dept Mat Sci & Engn, Clemson, SC 29631 USA

[5] Univ Laval, COPL, Quebec City, PQ G1V 0A6, Canada

来源：

OPTICS LETTERS | 2020年 / 45卷 / 05期

关键词：

Silica;

D O I：

10.1364/OL.384658

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

For the first time, to the best of our knowledge, laser cooling is reported in a silica optical fiber. The fiber has a 21-mu m diameter core doped with 2.06 wt.% Yb3+ and co-doped with Al2O3 and 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 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. (C) 2020 Optical Society of America

引用

页码：1092 / 1095

页数：4

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