Universal Quasi-Level Parameter for the Characterization of Laser Operation
A parameter is proposed which classifies the laser operating characteristics according to the quasi-level terminology, i.e., as intermediate behavior between that of an ideal two- and three-level or three- and four-level laser scheme. Since the quasi-level parameter is purely based on a generic rate...
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IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8424814/ |
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| author | Christian Jirauschek |
| author_facet | Christian Jirauschek |
| author_sort | Christian Jirauschek |
| collection | DOAJ |
| description | A parameter is proposed which classifies the laser operating characteristics according to the quasi-level terminology, i.e., as intermediate behavior between that of an ideal two- and three-level or three- and four-level laser scheme. Since the quasi-level parameter is purely based on a generic rate equation description of the laser, no inherent assumptions about gain medium properties or the pumping process are required. The validity of the quasi-level parameter is verified for various prototypical laser schemes. As a specific example of a nonideal laser, the operating behavior of an experimental quantum cascade laser is classified, which constitutes a quite generic laser type since the active region properties can be custom-engineered by quantum design. |
| format | Article |
| id | doaj-art-41df9bfe1c6044e59aa655abc1d71ac7 |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-41df9bfe1c6044e59aa655abc1d71ac72025-08-20T03:15:15ZengIEEEIEEE Photonics Journal1943-06552018-01-011041910.1109/JPHOT.2018.28630258424814Universal Quasi-Level Parameter for the Characterization of Laser OperationChristian Jirauschek0https://orcid.org/0000-0003-0785-5530Department of Electrical and Computer Engineering, Technical University of Munich, Munich, GermanyA parameter is proposed which classifies the laser operating characteristics according to the quasi-level terminology, i.e., as intermediate behavior between that of an ideal two- and three-level or three- and four-level laser scheme. Since the quasi-level parameter is purely based on a generic rate equation description of the laser, no inherent assumptions about gain medium properties or the pumping process are required. The validity of the quasi-level parameter is verified for various prototypical laser schemes. As a specific example of a nonideal laser, the operating behavior of an experimental quantum cascade laser is classified, which constitutes a quite generic laser type since the active region properties can be custom-engineered by quantum design.https://ieeexplore.ieee.org/document/8424814/Laserslaser theoryquantum cascade lasers. |
| spellingShingle | Christian Jirauschek Universal Quasi-Level Parameter for the Characterization of Laser Operation IEEE Photonics Journal Lasers laser theory quantum cascade lasers. |
| title | Universal Quasi-Level Parameter for the Characterization of Laser Operation |
| title_full | Universal Quasi-Level Parameter for the Characterization of Laser Operation |
| title_fullStr | Universal Quasi-Level Parameter for the Characterization of Laser Operation |
| title_full_unstemmed | Universal Quasi-Level Parameter for the Characterization of Laser Operation |
| title_short | Universal Quasi-Level Parameter for the Characterization of Laser Operation |
| title_sort | universal quasi level parameter for the characterization of laser operation |
| topic | Lasers laser theory quantum cascade lasers. |
| url | https://ieeexplore.ieee.org/document/8424814/ |
| work_keys_str_mv | AT christianjirauschek universalquasilevelparameterforthecharacterizationoflaseroperation |