Multigigabit/s standard fibre transmission by injection- locked directly modulated lasers
- Mohrdiek, S.
- Burkhard, H.
- Walter, H.
- Schöll, H.
- Steinhagen, F.
- Hillmer, H.
- Lösch, R.
- Schlapp, W.
- Göbel, R.
- Janning, H.
- Kempf, B.
- Hansmann, S.
- Mattheus, A.
DOIAbstract
We have investigated the injection-locking (IL) technique as a useful tool to substantially reduce the chirp of directly modulated semiconductor lasers in standard fibre transmission systems. Chirpless transmission is presented for Fabry-Perot, bulk DFB and multi quantum well (MQW) DFB lasers directly modulated at 10 to 15 Gbit/s with a current amplitude as high as 40 mA PP. Important aspects for operating conditions of injection-locked directly modulated laser transmitters have been obtained by simulation of standard single mode fibre transmission
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