Characterization and stabilization of fiber-coupled laser diode arrays
| Autor: | R. L. Walsworth, D. F. Phillips, R. E. Stoner, G. P. Wong, D. Bear |
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| Rok vydání: | 1999 |
| Předmět: |
Distributed feedback laser
Materials science Laser diode business.industry Physics::Optics Optical modulation amplitude law.invention Vertical-cavity surface-emitting laser Semiconductor laser theory Optical pumping law Laser diode rate equations Optoelectronics Laser power scaling business Instrumentation |
| Zdroj: | Review of Scientific Instruments. 70:2905-2909 |
| ISSN: | 1089-7623 0034-6748 |
| DOI: | 10.1063/1.1149847 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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