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Reduction of spectral-linewidth in high power SOA integrated wavelength selectable laser

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5 Author(s)
Kimoto, T. ; Yokohama R&D Labs., Furukawa Electr. Co. Ltd., Yokohama, Japan ; Kurobe, T. ; Muranushi, Kengo ; Mukaihara, T.
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The effect of optical feedback from various reflected points on the spectral-linewidth was analyzed for a wavelength selectable laser consisting of a 12 distributed feedback (DFB) laser array, multimode interference coupler, and semiconductor optical amplifiers (SOA). For all 12 DFB lasers, a narrow linewidth of less than 2 MHz was achieved with over 50 mW by reducing facet reflectivity.

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:11 ,  Issue: 5 )