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29 March 2000 High-spectral-purity VCSELs for spectroscopy and sensors
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The use of VCSELs in spectrally-demanding applications is considered. Vertical cavity lasers with emission in the (lambda) equals 763 nm, 780 nm and 852 nm wavelength ranges have been developed and optimized for spectrally-pure emission. Measurements of output spectra, linewidth, noise, polarization and spectral aging properties are considered in detail. Typical linewidth values below 5 MHz are seen, which makes these lasers very attractive for a variety of spectroscopic applications. Two of these optically-demanding applications are considered, namely oxygen sensing and pump sources for atomic clocks; performance results for the former are presented.
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Hans P. Zappe, Fabrice Monti di Sopra, Hans-Peter Gauggel, Karlheinz H. Gulden, Rainer Hovel, and Michael Moser "High-spectral-purity VCSELs for spectroscopy and sensors", Proc. SPIE 3945, Laser Diodes and LEDs in Industrial, Measurement, Imaging, and Sensors Applications II; Testing, Packaging, and Reliability of Semiconductor Lasers V, (29 March 2000);

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