Numerical study on all-optical modulation characteristics of quantum cascade lasers
To explain the phenomenon of all-optical modulation of quantum cascade laser (QCL), and explore the physics in QCL’s gain medium which consists of multiple of dielectric nanostructures with high refractive index under light injection, we modified the 1½-period model to calculate values of electron p...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2022-09-01
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| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.13.88 |
| _version_ | 1811205029018730496 |
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| author | Biao Wei Haijun Zhou Guangxiang Li Bin Tang |
| author_facet | Biao Wei Haijun Zhou Guangxiang Li Bin Tang |
| author_sort | Biao Wei |
| collection | DOAJ |
| description | To explain the phenomenon of all-optical modulation of quantum cascade laser (QCL), and explore the physics in QCL’s gain medium which consists of multiple of dielectric nanostructures with high refractive index under light injection, we modified the 1½-period model to calculate values of electron population and lifetime in each subband which is separated by the nanostructures, optical gain, current and number of photons in the cavity of a mid-infrared QCL modulated with near-infrared optical injection. The results were consistent with an experiment, where the injected light increases the electron population and lifetime, but does not affect the optical gain obviously. Our study can be helpful for optimizing its use and dielectric nanostructure design. |
| first_indexed | 2024-04-12T03:23:41Z |
| format | Article |
| id | doaj.art-26fae1f56e3b4e7391b703ceb4e3d8cc |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-04-12T03:23:41Z |
| publishDate | 2022-09-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-26fae1f56e3b4e7391b703ceb4e3d8cc2022-12-22T03:49:48ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862022-09-011311011101910.3762/bjnano.13.882190-4286-13-88Numerical study on all-optical modulation characteristics of quantum cascade lasersBiao Wei0Haijun Zhou1Guangxiang Li2Bin Tang3Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University, Chongqing 400044, China Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University, Chongqing 400044, China Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University, Chongqing 400044, China Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education, Chongqing University, Chongqing 400044, China To explain the phenomenon of all-optical modulation of quantum cascade laser (QCL), and explore the physics in QCL’s gain medium which consists of multiple of dielectric nanostructures with high refractive index under light injection, we modified the 1½-period model to calculate values of electron population and lifetime in each subband which is separated by the nanostructures, optical gain, current and number of photons in the cavity of a mid-infrared QCL modulated with near-infrared optical injection. The results were consistent with an experiment, where the injected light increases the electron population and lifetime, but does not affect the optical gain obviously. Our study can be helpful for optimizing its use and dielectric nanostructure design.https://doi.org/10.3762/bjnano.13.88all-optical modulationdielectric nanostructureshigh refractive index materialsnumerical studyquantum cascade lasers |
| spellingShingle | Biao Wei Haijun Zhou Guangxiang Li Bin Tang Numerical study on all-optical modulation characteristics of quantum cascade lasers Beilstein Journal of Nanotechnology all-optical modulation dielectric nanostructures high refractive index materials numerical study quantum cascade lasers |
| title | Numerical study on all-optical modulation characteristics of quantum cascade lasers |
| title_full | Numerical study on all-optical modulation characteristics of quantum cascade lasers |
| title_fullStr | Numerical study on all-optical modulation characteristics of quantum cascade lasers |
| title_full_unstemmed | Numerical study on all-optical modulation characteristics of quantum cascade lasers |
| title_short | Numerical study on all-optical modulation characteristics of quantum cascade lasers |
| title_sort | numerical study on all optical modulation characteristics of quantum cascade lasers |
| topic | all-optical modulation dielectric nanostructures high refractive index materials numerical study quantum cascade lasers |
| url | https://doi.org/10.3762/bjnano.13.88 |
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