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Aging characteristics of InGaAsP/InP DFB lasers

Aging characteristics of InGaAsP/InP DFB lasers

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Aging tests of InGaAsP/InP DFB lasers with a constant light output of 5 mW/facet and ambient temperatures 25°C and 40°C have been carried out. Up to the present, with an aging time of more than 2000 h for six lasers, appreciable degradations have been observed in their driving currents and spectra. This indicates that the corrugation grating near the active region has little influence on short-term reliability of DFB lasers.

References

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    2. 2)
      • T. Matsuoka , H. Nagai , Y. Itaya , Y. Noguchi , U. Suzuki , T. Ikegami . CW operation of DFB-BH GaInAsP/InP lasers in 1.5 μm wavelength region. Electron. Lett. , 27 - 28
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      • Y. Itaya , T. Matsuoka , Y. Nakano , Y. Suzuki , K. Kuroiwa , T. Ikegami . New 1.5 μm wavelength GaInAsP/InP distributed feedback laser. Electron. Lett. , 1006 - 1008
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      • K. Utaka , S. Akiba , K. Sakai , Y. Matsushima . Room temperature CW operation of distributed-feedback buried heterostructure InGaAsP/InP lasers emitting at 1.57 μm. Electron. Lett. , 961 - 963
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