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Communication Dans Un Congrès Année : 2013

Intensity modulation response of injection-locked quantum cascade lasers

Résumé

The intensity modulation (IM) property of an optical injection-locked quantum cascade (QC) laser is theoretically investigated via a three-level rate equation model. The locking regime is obtained based on the local bifurcation theory. It is shown that the injection-locked QC laser exhibits a rather flat modulation response at zero detuning, whose bandwidth increases with the injection level. In contrast to interband lasers, both positive and negative detunings enhance the modulation bandwidth. Besides, a large linewidth enhancement factor (LEF) can increase the peak amplitude in the response. Moreover, it is found that no frequency dip occurs in the IM response of injection-locked QC
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Dates et versions

hal-00827703 , version 1 (29-05-2013)

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Citer

Cheng Wang, Frederic Grillot, Jacky Even. Intensity modulation response of injection-locked quantum cascade lasers. SPIE Photonics West 2013, Feb 2013, San Francisco, United States. pp.86191Q, ⟨10.1117/12.2002007⟩. ⟨hal-00827703⟩
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