Characterization and stabilization of fiber-coupled laser diode arrays
We have characterized the spectra and performance of an ensemble of 11 fiber-coupled laser diode arrays (LDAs) manufactured by Opto Power Inc. These high-power LDAs operate near 795 nm and are of a type commonly used for spin-exchange optical pumping of noble gases. We find the Opto Power LDAs to va...
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Veröffentlicht in: | Review of scientific instruments 1999-07, Vol.70 (7), p.2905-2909 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We have characterized the spectra and performance of an ensemble of 11 fiber-coupled laser diode arrays (LDAs) manufactured by Opto Power Inc. These high-power LDAs operate near 795 nm and are of a type commonly used for spin-exchange optical pumping of noble gases. We find the Opto Power LDAs to vary significantly in output power, spectral width, and other important characteristics, in a manner not correlated with age, operating lifetime, or information supplied by the manufacturer. In addition we have developed a two-loop feedback technique for use with LDAs that stabilizes the Rb magnetization in an optical pumping cell to better than one part in a thousand. |
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ISSN: | 0034-6748 1089-7623 |
DOI: | 10.1063/1.1149847 |