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Influence of the polarization anisotropy on the linewidth enhancement factor and reflection sensitivity of 1.55- μm InP-based InAs quantum dash lasers

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Academic year: 2021

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Figure 2 depicts the light current characteristics, and the inset shows the corresponding optical spectra measured at 1.5  I th of the two lasers with dashes oriented parallel (red) to the cavity axis and with dashes oriented perpendicular (blue) to the ca
FIG. 4. Schematic of the experimental setup used for investigating optical feedback.
Figure 5 displays the optical feedback dynamics at 1.5  I th for the two QDash lasers by varying r ext from 60 dB to 7 dB
FIG. 7. The calculated b-factor as a function of the LEF and / 0 . Green dashed lines are located in the interval of / 0 , which improves the approximate model [Eq.

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