Cavity-enhanced frequency up-conversion in rubidium vapour

Rachel F. Offer, Johnathan W. C. Conway, Erling Riis, Sonja Franke-Arnold, Aidan S. Arnold

Research output: Contribution to journalArticle

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Abstract

We report the first use of a ring cavity to both enhance the output power and dramatically narrow the linewidth (<1MHz) of blue light generated by four wave mixing in a rubidium vapour cell. We find that the high output power available in our cavity-free system leads to power broadening of the generated blue light linewidth. Our ring cavity removes this limitation, allowing high output power and narrow linewidth to be achieved concurrently. As the cavity blue light is widely tunable over the 85Rb 5S1/2F=3 → 6P3/2 transition, this narrow linewidth light would be suitable for second-stage laser cooling, which could be valuable for efficient 85Rb BEC production.
Original languageEnglish
Pages (from-to)2177-2180
Number of pages4
JournalOptics Letters
Volume41
Issue number10
DOIs
Publication statusPublished - 15 May 2016

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rubidium
vapors
cavities
output
laser cooling
rings
four-wave mixing
cells

Keywords

  • rubidum vapour
  • ring cavity
  • output power

Cite this

Offer, Rachel F. ; Conway, Johnathan W. C. ; Riis, Erling ; Franke-Arnold, Sonja ; Arnold, Aidan S. / Cavity-enhanced frequency up-conversion in rubidium vapour. In: Optics Letters. 2016 ; Vol. 41, No. 10. pp. 2177-2180.
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Cavity-enhanced frequency up-conversion in rubidium vapour. / Offer, Rachel F.; Conway, Johnathan W. C.; Riis, Erling; Franke-Arnold, Sonja; Arnold, Aidan S.

In: Optics Letters, Vol. 41, No. 10, 15.05.2016, p. 2177-2180.

Research output: Contribution to journalArticle

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AU - Offer, Rachel F.

AU - Conway, Johnathan W. C.

AU - Riis, Erling

AU - Franke-Arnold, Sonja

AU - Arnold, Aidan S.

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AB - We report the first use of a ring cavity to both enhance the output power and dramatically narrow the linewidth (<1MHz) of blue light generated by four wave mixing in a rubidium vapour cell. We find that the high output power available in our cavity-free system leads to power broadening of the generated blue light linewidth. Our ring cavity removes this limitation, allowing high output power and narrow linewidth to be achieved concurrently. As the cavity blue light is widely tunable over the 85Rb 5S1/2F=3 → 6P3/2 transition, this narrow linewidth light would be suitable for second-stage laser cooling, which could be valuable for efficient 85Rb BEC production.

KW - rubidum vapour

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