Spectral behaviour of aged 1.55 ?m ?/4-shifted DFB lasers |
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| Authors: | Akiba S. Matsushima Y. Usami M. Utaka K. |
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| Affiliation: | KDD Research & Development Laboratories, Tokyo, Japan; |
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| Abstract: | Side-mode suppression ratio and main-mode wavelength were measured in the 3000 h life test of 1.55 ?m ?/4-shifted InGaAsP/InP DFB lasers. Degradation of the single-wavelength property and the wavelength shift of the main mode were observed in lasers which showed relatively large degradation rates of about 10?4/h at 50°C. |
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