Bipolar cascade lasers
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2005
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| Online Access: | http://hdl.handle.net/1721.1/8805 |
| _version_ | 1826199623552729088 |
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| author | Patterson, Steven Gregory |
| author2 | Rajeev J. Ram. |
| author_facet | Rajeev J. Ram. Patterson, Steven Gregory |
| author_sort | Patterson, Steven Gregory |
| collection | MIT |
| description | Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000. |
| first_indexed | 2024-09-23T11:23:13Z |
| format | Thesis |
| id | mit-1721.1/8805 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T11:23:13Z |
| publishDate | 2005 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/88052019-04-11T01:04:50Z Bipolar cascade lasers Patterson, Steven Gregory Rajeev J. Ram. Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Electrical Engineering and Computer Science. Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000. Includes bibliographical references. This thesis addresses issues of the design and modeling of the Bipolar Cascade Laser (BCL), a new type of quantum well laser. BCLs consist of multiple single stage lasers electrically coupled via tunnel junctions. The BCL ideally operates by having each injected electron participate in a recombination event in the topmost active region, then tunnel from the valence band of the first active region into the conduction band of the next active region, participate in another recombination event, and so on through each stage of the cascade. As each electron may produce more than one photon the quantum efficiency of the device can, in theory, exceed 100%. This work resulted in the first room temperature, continuous-wave operation of a BCL, with a record 99.3% differential slope efficiency. The device was fully characterized and modeled to include light output and voltage versus current bias, modulation response and thermal properties. A new singlemode bipolar cascade laser, the bipolar cascade antiresonant reflecting optical waveguide laser, was proposed and modeled. by Steven G. Patterson. Ph.D. 2005-08-23T15:28:46Z 2005-08-23T15:28:46Z 2000 2000 Thesis http://hdl.handle.net/1721.1/8805 48245150 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 179 p. 12313251 bytes 12313006 bytes application/pdf application/pdf application/pdf Massachusetts Institute of Technology |
| spellingShingle | Electrical Engineering and Computer Science. Patterson, Steven Gregory Bipolar cascade lasers |
| title | Bipolar cascade lasers |
| title_full | Bipolar cascade lasers |
| title_fullStr | Bipolar cascade lasers |
| title_full_unstemmed | Bipolar cascade lasers |
| title_short | Bipolar cascade lasers |
| title_sort | bipolar cascade lasers |
| topic | Electrical Engineering and Computer Science. |
| url | http://hdl.handle.net/1721.1/8805 |
| work_keys_str_mv | AT pattersonstevengregory bipolarcascadelasers |