Highly efficient picosecond diamond Raman laser at 1240 and 1485 nm

Research output: Contribution to journalArticleResearchpeer-review

Abstract

We present a highly efficient picosecond diamond Raman laser synchronously-pumped by a 4.8 W mode-locked laser at 1064 nm. A ring cavity was adopted for efficient operation. With a low-Q cavity for first- Stokes 1240 nm, we have achieved 2.75 W output power at 1240 nm with 59% overall conversion efficiency. The slope efficiency tended towards 76% far above the SRS threshold, approaching the SRS quantum limit for diamond. A high-Q first-Stokes cavity was employed for second-Stokes 1485 nm generation through the combined processes of four-wave mixing and single-pass stimulated Raman scattering. Up to 1.0 W of second-stokes at 1485 nm was obtained, corresponding to 21% overall conversion efficiency. The minimum output pulse duration was compressed relative to the 15 ps pump, producing pulses as short as 9 ps for 1240 nm and 6 ps for 1485 nm respectively.

LanguageEnglish
Pages3325-3333
Number of pages9
JournalOptics Express
Volume22
Issue number3
DOIs
Publication statusPublished - 10 Feb 2014

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Raman lasers
diamonds
cavities
output
four-wave mixing
Q factors
pulse duration
Raman spectra
pumps
slopes
thresholds
rings
pulses
lasers

Cite this

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title = "Highly efficient picosecond diamond Raman laser at 1240 and 1485 nm",
abstract = "We present a highly efficient picosecond diamond Raman laser synchronously-pumped by a 4.8 W mode-locked laser at 1064 nm. A ring cavity was adopted for efficient operation. With a low-Q cavity for first- Stokes 1240 nm, we have achieved 2.75 W output power at 1240 nm with 59{\%} overall conversion efficiency. The slope efficiency tended towards 76{\%} far above the SRS threshold, approaching the SRS quantum limit for diamond. A high-Q first-Stokes cavity was employed for second-Stokes 1485 nm generation through the combined processes of four-wave mixing and single-pass stimulated Raman scattering. Up to 1.0 W of second-stokes at 1485 nm was obtained, corresponding to 21{\%} overall conversion efficiency. The minimum output pulse duration was compressed relative to the 15 ps pump, producing pulses as short as 9 ps for 1240 nm and 6 ps for 1485 nm respectively.",
author = "Warrier, {Aravindan M.} and Jipeng Lin and Pask, {Helen M.} and Mildren, {Richard P.} and Coutts, {David W.} and Spence, {David J.}",
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language = "English",
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journal = "Optics Express",
issn = "1094-4087",
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Highly efficient picosecond diamond Raman laser at 1240 and 1485 nm. / Warrier, Aravindan M.; Lin, Jipeng; Pask, Helen M.; Mildren, Richard P.; Coutts, David W.; Spence, David J.

In: Optics Express, Vol. 22, No. 3, 10.02.2014, p. 3325-3333.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Highly efficient picosecond diamond Raman laser at 1240 and 1485 nm

AU - Warrier, Aravindan M.

AU - Lin, Jipeng

AU - Pask, Helen M.

AU - Mildren, Richard P.

AU - Coutts, David W.

AU - Spence, David J.

PY - 2014/2/10

Y1 - 2014/2/10

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AB - We present a highly efficient picosecond diamond Raman laser synchronously-pumped by a 4.8 W mode-locked laser at 1064 nm. A ring cavity was adopted for efficient operation. With a low-Q cavity for first- Stokes 1240 nm, we have achieved 2.75 W output power at 1240 nm with 59% overall conversion efficiency. The slope efficiency tended towards 76% far above the SRS threshold, approaching the SRS quantum limit for diamond. A high-Q first-Stokes cavity was employed for second-Stokes 1485 nm generation through the combined processes of four-wave mixing and single-pass stimulated Raman scattering. Up to 1.0 W of second-stokes at 1485 nm was obtained, corresponding to 21% overall conversion efficiency. The minimum output pulse duration was compressed relative to the 15 ps pump, producing pulses as short as 9 ps for 1240 nm and 6 ps for 1485 nm respectively.

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