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A strained-layer multiple-quantum-well tapered laser with single-frequency operation near 1550 nm and with 20-dB sidemode suppression, for continuous-wave power levels up to 0.6 W is reported. At a power level of 0.5 W, 80% of the power from this device remains in the central lobe of the far-field. Increased lateral mode stabilization was observed in(More)
We have developed a model of current-voltage (<i>I</i>-<i>V</i>) characteristic for an ITO/PEDOT:PSS/MEH-PPV/Al photodetector. The model is based on the solution of the continuity and drift-diffusion equation for hole polarons. Detailed analysis of the generation process is carried out through the investigation of the internal quantum efficiency (QE)(More)
We have developed a single-frequency tapered laser emitting at a wavelength of 1.55 pm. The ridge waveguide section enables only one lateral mode, while the DBR structure provides single ffequency operation. This tapered laser has 20 dl3 side-mode suppression at continuous wave (CW) power levels up to 0.6 W. 80 'YO of the power from this device remains in(More)
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