A unidirectional quantum cascade ring laser
We report on the design, fabrication, and characterization of a unidirectional quantum cascade ring laser operating at a wavelength of around 3.4 µm at 200 K. A unidirectional operation is achieved by incorporating an "S-shaped" crossover waveguide in a manner that it couples light from th...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
American Institute of Physics
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/19043 |
| _version_ | 1848749921015955456 |
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| author | Nshii, C. Ironside, Charlie Sorel, M. Slight, T. Zhang, S. Revin, D. Cockburn, J. |
| author_facet | Nshii, C. Ironside, Charlie Sorel, M. Slight, T. Zhang, S. Revin, D. Cockburn, J. |
| author_sort | Nshii, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We report on the design, fabrication, and characterization of a unidirectional quantum cascade ring laser operating at a wavelength of around 3.4 µm at 200 K. A unidirectional operation is achieved by incorporating an "S-shaped" crossover waveguide in a manner that it couples light from the counterclockwise direction to the preferred clockwise direction. The ring laser unidirectionality is confirmed by measuring the counterpropagating wave suppression ratio (CWSR) as a function of injection current. At 1.5 times the threshold current, the CWSR is 9 that is 90% of the light is emitted in the favored (clockwise) direction. © 2010 American Institute of Physics. |
| first_indexed | 2025-11-14T07:28:37Z |
| format | Journal Article |
| id | curtin-20.500.11937-19043 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:28:37Z |
| publishDate | 2010 |
| publisher | American Institute of Physics |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-190432017-09-13T13:43:51Z A unidirectional quantum cascade ring laser Nshii, C. Ironside, Charlie Sorel, M. Slight, T. Zhang, S. Revin, D. Cockburn, J. We report on the design, fabrication, and characterization of a unidirectional quantum cascade ring laser operating at a wavelength of around 3.4 µm at 200 K. A unidirectional operation is achieved by incorporating an "S-shaped" crossover waveguide in a manner that it couples light from the counterclockwise direction to the preferred clockwise direction. The ring laser unidirectionality is confirmed by measuring the counterpropagating wave suppression ratio (CWSR) as a function of injection current. At 1.5 times the threshold current, the CWSR is 9 that is 90% of the light is emitted in the favored (clockwise) direction. © 2010 American Institute of Physics. 2010 Journal Article http://hdl.handle.net/20.500.11937/19043 10.1063/1.3524200 American Institute of Physics restricted |
| spellingShingle | Nshii, C. Ironside, Charlie Sorel, M. Slight, T. Zhang, S. Revin, D. Cockburn, J. A unidirectional quantum cascade ring laser |
| title | A unidirectional quantum cascade ring laser |
| title_full | A unidirectional quantum cascade ring laser |
| title_fullStr | A unidirectional quantum cascade ring laser |
| title_full_unstemmed | A unidirectional quantum cascade ring laser |
| title_short | A unidirectional quantum cascade ring laser |
| title_sort | unidirectional quantum cascade ring laser |
| url | http://hdl.handle.net/20.500.11937/19043 |