Conceptual study of a fiber-optical approach to solid-state laser cooling

Dan T. Nguyen, Christopher Shanor, Jie Zong, Wenyan Tian, Zhidong Yao, Jianfeng Wu, Jeff Weiss, Rudolf Binder, Arturo Chavez-Pirson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Optical cooling in an all fiber system using fiber laser pumps and cooling fibers doped with rare earth ions has been investigated both theoretically and experimentally. A 2% Tm doped germanate glass was selected from glasses with different Tm concentrations 0.5, 1, 2, 3, 4, 5, 6, 8 and 10% wt for fabrication of the cooling fiber. A high efficiency, single mode Tm-doped fiber laser has been built to pump a Tm-doped fiber cooler. The cooling experiments done in a vacuum chamber show indications that cooling has occurred in the fiber. A theoretical framework to understand the nature of cooling in this laser cooling system has been developed which highlights the cooling power available as a function of various material and fiber parameters including background loss and absorption saturation effects in the cooling fiber. Cooling characteristics, with special emphasis on the fiber's saturation behavior, have been studied using theoretical models of Tm3+-doped glass (4-level models) and Tm3+ doped KLa(WO4)2 crystals (20-level model).

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7951
DOIs
StatePublished - 2011
EventLaser Refrigeration of Solids IV - San Francisco, CA, United States
Duration: Jan 26 2011Jan 27 2011

Other

OtherLaser Refrigeration of Solids IV
CountryUnited States
CitySan Francisco, CA
Period1/26/111/27/11

Fingerprint

Laser Cooling
Laser cooling
Solid-state Laser
laser cooling
Solid state lasers
solid state lasers
Optical Fiber
Cooling
Optical fibers
optical fibers
cooling
Fiber
fibers
Fibers
Fiber Laser
Fiber lasers
Glass
Pump
fiber lasers
Saturation

Keywords

  • Fiber laser
  • Laser cooling
  • Optical cooling
  • Tm doped glass fiber

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Nguyen, D. T., Shanor, C., Zong, J., Tian, W., Yao, Z., Wu, J., ... Chavez-Pirson, A. (2011). Conceptual study of a fiber-optical approach to solid-state laser cooling. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7951). [795109] https://doi.org/10.1117/12.876225

Conceptual study of a fiber-optical approach to solid-state laser cooling. / Nguyen, Dan T.; Shanor, Christopher; Zong, Jie; Tian, Wenyan; Yao, Zhidong; Wu, Jianfeng; Weiss, Jeff; Binder, Rudolf; Chavez-Pirson, Arturo.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7951 2011. 795109.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nguyen, DT, Shanor, C, Zong, J, Tian, W, Yao, Z, Wu, J, Weiss, J, Binder, R & Chavez-Pirson, A 2011, Conceptual study of a fiber-optical approach to solid-state laser cooling. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7951, 795109, Laser Refrigeration of Solids IV, San Francisco, CA, United States, 1/26/11. https://doi.org/10.1117/12.876225
Nguyen DT, Shanor C, Zong J, Tian W, Yao Z, Wu J et al. Conceptual study of a fiber-optical approach to solid-state laser cooling. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7951. 2011. 795109 https://doi.org/10.1117/12.876225
Nguyen, Dan T. ; Shanor, Christopher ; Zong, Jie ; Tian, Wenyan ; Yao, Zhidong ; Wu, Jianfeng ; Weiss, Jeff ; Binder, Rudolf ; Chavez-Pirson, Arturo. / Conceptual study of a fiber-optical approach to solid-state laser cooling. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7951 2011.
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AB - Optical cooling in an all fiber system using fiber laser pumps and cooling fibers doped with rare earth ions has been investigated both theoretically and experimentally. A 2% Tm doped germanate glass was selected from glasses with different Tm concentrations 0.5, 1, 2, 3, 4, 5, 6, 8 and 10% wt for fabrication of the cooling fiber. A high efficiency, single mode Tm-doped fiber laser has been built to pump a Tm-doped fiber cooler. The cooling experiments done in a vacuum chamber show indications that cooling has occurred in the fiber. A theoretical framework to understand the nature of cooling in this laser cooling system has been developed which highlights the cooling power available as a function of various material and fiber parameters including background loss and absorption saturation effects in the cooling fiber. Cooling characteristics, with special emphasis on the fiber's saturation behavior, have been studied using theoretical models of Tm3+-doped glass (4-level models) and Tm3+ doped KLa(WO4)2 crystals (20-level model).

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