Diode-pumped continuous-wave eye-safe Nd:YAG laser at 1415 nm

Hee Chul Lee; Sung Ug Byeon; Alexei Lukashev

doi:10.1364/OL.37.001160

Diode-pumped continuous-wave eye-safe Nd:YAG laser at 1415 nm

Hee Chul Lee, Sung Ug Byeon, and Alexei Lukashev

Optics Letters
Vol. 37,
Issue 7,
pp. 1160-1162
(2012)
•https://doi.org/10.1364/OL.37.001160

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Hee Chul Lee, Sung Ug Byeon, and Alexei Lukashev, "Diode-pumped continuous-wave eye-safe Nd:YAG laser at 1415 nm," Opt. Lett. 37, 1160-1162 (2012)

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Related Topics
Table of Contents Category
- Lasers and Laser Optics
Optics & Photonics Topics
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The topics in this list come from the OSA Optics and Photonics Topics applied to this article.
- Blood
- Emission
- Ions
- Laser operation
- Reflectivity
- Retina
Previously assigned OCIS codes
- Lasers, diode-pumped (140.3480)
- Lasers, neodymium (140.3530)
- Lasers, solid-state (140.3580)

About this Article
History
- Original Manuscript: November 8, 2011
- Revised Manuscript: January 26, 2012
- Manuscript Accepted: January 31, 2012
- Published: March 23, 2012
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Virtual Journal for Biomedical Optics Vol. 7, Iss. 6

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Abstract

We describe the output performance of the 1415 nm emission in Nd:YAG in a plane-concave cavity under traditional pumping into the ${}^{4}{F_{5 / 2}}$ level (808 nm) and direct in-band pumping into the ${}^{4}{F_{3 / 2}}$ level (885 nm). An end-pumped Nd:YAG laser yielded maximum cw output power of 6.3 W and 4.2 W at 885 nm and 808 nm laser diode (LD) pumping, respectively. To the best of our knowledge, this is the highest output power of a LD-pumped 1415 nm laser.

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Transition	Wavelength (nm)	Stimulated Emission Cross Section ( $10^{- 2} {cm}^{2}$ )
$R_{2}$ of ${}^{4}{F_{3 / 2}} \to Y_{3}$ of ${}^{4}{I_{11 / 2}}$	1064	30
$R_{2}$ of ${}^{4}{F_{3 / 2}} \to X_{2}$ of ${}^{4}{I_{13 / 2}}$	1319	9.5
$R_{2}$ of ${}^{4}{F_{3 / 2}} \to X_{3}$ of ${}^{4}{I_{13 / 2}}$	1338	10
$R_{2}$ of ${}^{4}{F_{3 / 2}} \to X_{6}$ of ${}^{4}{I_{13 / 2}}$	1415	2
$R_{1}$ of ${}^{4}{F_{3 / 2}} \to X_{5}$ of ${}^{4}{I_{13 / 2}}$	1427	0.8
$R_{1}$ of ${}^{4}{F_{3 / 2}} \to X_{6}$ of ${}^{4}{I_{13 / 2}}$	1432	1.3
$R_{1}$ of ${}^{4}{F_{3 / 2}} \to X_{7}$ of ${}^{4}{I_{13 / 2}}$	1444	2.8

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