Uncooled 25 Gbit/s direct modulation of semi-insulating buried-heterostructure 1.3 μm AlGaInAs quantum-well DFB lasers |
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| Authors: | Otsubo K. Matsuda M. Takada K. Okumura S. Ekawa M. Tanaka H. Ide S. Mori K. Yamamoto T. |
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| Affiliation: | Fujitsu Labs. Ltd. & Fujitsu Ltd., Atsugi; |
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| Abstract: | Uncooled 25 Gbit/s direct modulation of 1.3 mum DFB lasers is demonstrated. The 150 mum-long semi-insulating buried-heterostructure AIGalnAs quantum-well DFB lasers show clear eye-openings with dynamic extinction ratio of 5 dB up to 70degC. 13 km singlemode-fibre transmission experiments using the devices show low power penalty within 1.3 dB between 25 and 70degC. These characteristics are the first achievement by 1.3 mum directly modulated lasers. |
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