Abstract
The Fourier series expansion method is used to measure the linewidth enhancement factor of an InGaAlAs Fabry-Pérot semiconductor laser from the below-threshold amplified spontaneous emission spectrum. It is shown that using this method, the linewidth enhancement factor can be obtained independently of the resolution bandwidth of the optical spectrum analyser.
| Original language | English |
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| Pages (from-to) | 1145-1146 |
| Number of pages | 2 |
| Journal | Electronics Letters |
| Volume | 43 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 2007 |