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
Hauptverfasser: Phillips, D. F., Wong, G. P., Bear, D., Stoner, R. E., Walsworth, R. L.
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.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1149847