28 April 2016 Optical nonlinearities in InAs/GaAs injection-locked quantum dot light-based emitters
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Abstract
Frequency conversion using highly non-degenerate four-wave mixing is reported in InAs/GaAs quantum-dot Fabry- Perot lasers. In order to compress the spontaneous emission noise, the laser is optically injection-locked. Under proper injection conditions, the beating between the injected light frequency and the cavity resonant frequency dominates the dynamic behavior and enhances a carrier modulation resonance at frequencies higher than the relaxation oscillation frequency. Conversion efficiencies as high as -12 dB associated to a large optical signal-to-noise ratio of 36 dB are reported. The conversion bandwidth is extended up to 2.1 THz for down-conversion (resp. 3.2 THz for up-conversion) with a quasi-symmetrical response between up- and down-converted signals.
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Frédéric Grillot, Heming Huang, Kevin Schires, Tagir Sadeev, Dejan Arsenijevic, Dieter Bimberg, "Optical nonlinearities in InAs/GaAs injection-locked quantum dot light-based emitters", Proc. SPIE 9892, Semiconductor Lasers and Laser Dynamics VII, 98920T (28 April 2016); doi: 10.1117/12.2230235; https://doi.org/10.1117/12.2230235
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