Relative intensity noise and intrinsic properties of RF mounted interband cascade laser
| Autor: | Daniel A. Diaz-Thomas, M. Carras, Pierre Didier, Olivier Spitz, Alexei N. Baranov, Laurent Cerutti, Frédéric Grillot |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
Physics and Astronomy (miscellaneous) Differential gain Relative intensity noise business.industry Biasing 02 engineering and technology Interband cascade laser Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology Laser Semiconductor laser theory law.invention 020210 optoelectronics & photonics Cascade law 0202 electrical engineering electronic engineering information engineering Optoelectronics 0210 nano-technology business Quantum |
| Zdroj: | Applied Physics Letters. 119:171107 |
| ISSN: | 1077-3118 0003-6951 |
| Popis: | Interband cascade lasers are semiconductor lasers emitting in the mid-infrared domain but relying on interband transitions, contrary to their intersubband counterparts, quantum cascade lasers. Our experimental study of the relative intensity noise in a multi-mode interband cascade laser at 4.1 μm shows that the room-temperature structure exhibits a relaxation frequency in the GHz range. We demonstrate that, far above the threshold current, the relaxation frequency increases with the bias current, and our simulations are in good agreement with our experimental efforts. Fitting of the relative intensity noise resonances gives access to several intrinsic parameters of the interband cascade laser under study such as differential gain, compression gain, and K-factor. This study is a clear step for understanding dynamics interplays in interband cascade laser structures, which means understanding the non-linear and modulation bandwidth limitations of such lasers. |
| Databáze: | OpenAIRE |
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