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Estimation of linewidth enhancement factor α of CSP-type AlGaAs lasers from measured correlation between AM and FM noises

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3 Author(s)
Kikuchi, K. ; University of Tokyo, Department of Electronic Engineering, Tokyo, Japan ; Okoshi, T. ; Kawai, T.

A novel method for estimating the linewidth enhancement factor a of semiconductor lasers is developed. The correlation between AM and FM noises of a CSP-type AlGaAs laser was measured in the frequency range above 1 MHz. From the measured correlation, the linewidth enhancement factor α is estimated to be approximately -2.2 to -2.8.

Published in:

Electronics Letters  (Volume:20 ,  Issue: 11 )