Dynamic performance and reflection sensitivity of quantum dot distributed feedback lasers with large optical mismatch

doi:10.1364/PRJ.421285

Dynamic performance and reflection sensitivity of quantum dot distributed feedback lasers with large optical mismatch

2021-07-29

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DOI：10.1364/PRJ.421285

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This work reports on a high-efficiency InAs/GaAs distributed feedback quantum dot laser. The large optical wavelength detuning at room temperature between the lasing peak and the gain peak causes the static, dynamic, and nonlinear intrinsic properties to all improve with temperature, including the lasing efficiency, the modulation dynamics, the linewidth enhancement factor, and consequently the reflection insensitivity. Results reported show an optimum operating temperature at 75 degrees C, highlighting the potential of the large optical mismatch assisted single-frequency laser for the development of uncooled and isolator-free high-speed photonic integrated circuits. (C) 2021 Chinese Laser Press

Keywords:

LINEWIDTH ENHANCEMENT FACTOR

RELATIVE INTENSITY NOISE

WIDE-TEMPERATURE-RANGE

SEMICONDUCTOR-LASERS

FREQUENCY-RESPONSE

GAIN COMPRESSION

MODE-OPERATION

OSCILLATIONS

SILICON

NM

Dynamic performance and reflection sensitivity of quantum dot distributed feedback lasers with large optical mismatch

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