VCSEL beam waists from optical spectra |
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Authors: | Chirovsky L.M.F. Boyd G.D. Hobson W.S. Lopata J. |
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Affiliation: | Bell Labs., Lucent Technol., Holmdel, NJ; |
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Abstract: | We relate the optical beam waist of a vertical-cavity surface-emitting laser (VCSEL) to a measurement of the transverse mode splitting found in the device's optical output spectra and to a measurement of beam divergence. We show experimentally that the results are in good agreement. Accurate knowledge of beam waists is useful for tailoring devices for single-mode or for high-speed operation and to better understand and interpret the mode spectrum |
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