Quantum Cascade Lasers as Broadband Sources via Strong RF Modulation
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arXiv
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866909624209244160 |
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| author | Cargioli, Alessio Piciocchi, Diego Bertrand, Mathieu Maulini, Richard Gresch, Tobias Muller, Antonine Scalari, Giacomo Faist, Jerome |
| author_facet | Cargioli, Alessio Piciocchi, Diego Bertrand, Mathieu Maulini, Richard Gresch, Tobias Muller, Antonine Scalari, Giacomo Faist, Jerome |
| contents | In this work, we demonstrate that in a regime of strong modulation, by generating pulses of the length of the order of a few cavity lifetimes (hundreds of ps), a broadband quantum cascade laser can be driven to lase on a bandwidth (250cm-1) limited by the gain. In addition, the amplitude noise of the radiation was shown to be limited by the detector. A laser linewidth study has been performed under different operating conditions finding values spanning from 20MHz to 800MHz, indicating a trade-off between emission bandwidth, amplitude stability and coherence. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_13496 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Quantum Cascade Lasers as Broadband Sources via Strong RF Modulation Cargioli, Alessio Piciocchi, Diego Bertrand, Mathieu Maulini, Richard Gresch, Tobias Muller, Antonine Scalari, Giacomo Faist, Jerome Optics Applied Physics In this work, we demonstrate that in a regime of strong modulation, by generating pulses of the length of the order of a few cavity lifetimes (hundreds of ps), a broadband quantum cascade laser can be driven to lase on a bandwidth (250cm-1) limited by the gain. In addition, the amplitude noise of the radiation was shown to be limited by the detector. A laser linewidth study has been performed under different operating conditions finding values spanning from 20MHz to 800MHz, indicating a trade-off between emission bandwidth, amplitude stability and coherence. |
| title | Quantum Cascade Lasers as Broadband Sources via Strong RF Modulation |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2311.13496 |