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Single step measurement of optical transmitters Henry factor using sinusoidal optical phase modulations
- Source :
- Optics express. 19(22)
- Publication Year :
- 2011
-
Abstract
- Measurement of the Henry factor over large optical bandwidth is carried out in a single step without any filtering, using a technique based on the sinusoidal phase modulation method. This fast technique was successfully applied to a directly modulated Fabry Perot laser to obtain simultaneously the linewidth enhancement factor (LEF) of 14 longitudinal modes. It is also well suited for electro-absorption modulators (EAM) for which the α-factor is determined over 15 nm optical bandwidth. A very good agreement is found with the well established fiber transfer function method.
Details
- ISSN :
- 10944087
- Volume :
- 19
- Issue :
- 22
- Database :
- OpenAIRE
- Journal :
- Optics express
- Accession number :
- edsair.doi.dedup.....fcb9b4a06384fc82f47c3b60d1c5b921