Effective mode selector for tunable terahertz wire lasers
We demonstrate an effective mode selector design that enables a terahertz quantum cascade wire laser to have a robust single-mode operation at frequencies much lower than the gain peak. This is achieved by selectively guiding the undesired modes into a lossy session while keeping the desired lasing...
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| Format: | Article |
| Language: | en_US |
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Optical Society of America
2014
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| Online Access: | http://hdl.handle.net/1721.1/86956 https://orcid.org/0000-0002-5100-3709 https://orcid.org/0000-0003-1982-4053 https://orcid.org/0000-0003-4513-8575 |
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| author | Qin, Qi Han, Ningren Kao, Tsung-Yu Reno, John L. Hu, Qing Kao, Tsung-Yu |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Qin, Qi Han, Ningren Kao, Tsung-Yu Reno, John L. Hu, Qing Kao, Tsung-Yu |
| author_sort | Qin, Qi |
| collection | MIT |
| description | We demonstrate an effective mode selector design that enables a terahertz quantum cascade wire laser to have a robust single-mode operation at frequencies much lower than the gain peak. This is achieved by selectively guiding the undesired modes into a lossy session while keeping the desired lasing mode largely unperturbed. The large mode discrimination obtained by this mode selector is necessary to further extend the tuning range to the lower half of the gain curve. Additionally, the connectors of this mode selector conveniently provide electrical bias to the wire lasers without degrading the lasing performance. |
| first_indexed | 2024-09-23T11:06:30Z |
| format | Article |
| id | mit-1721.1/86956 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:06:30Z |
| publishDate | 2014 |
| publisher | Optical Society of America |
| record_format | dspace |
| spelling | mit-1721.1/869562022-10-01T01:17:07Z Effective mode selector for tunable terahertz wire lasers Qin, Qi Han, Ningren Kao, Tsung-Yu Reno, John L. Hu, Qing Kao, Tsung-Yu Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Research Laboratory of Electronics Qin, Qi Han, Ningren Kao, Tsung-Yu Hu, Qing We demonstrate an effective mode selector design that enables a terahertz quantum cascade wire laser to have a robust single-mode operation at frequencies much lower than the gain peak. This is achieved by selectively guiding the undesired modes into a lossy session while keeping the desired lasing mode largely unperturbed. The large mode discrimination obtained by this mode selector is necessary to further extend the tuning range to the lower half of the gain curve. Additionally, the connectors of this mode selector conveniently provide electrical bias to the wire lasers without degrading the lasing performance. National Science Foundation (U.S.) United States. National Aeronautics and Space Administration United States. Dept. of Energy (Office of Basic Energy Sciences, Energy’s National Nuclear Security Administration, contract DE-AC04-94AL85000) 2014-05-14T19:58:35Z 2014-05-14T19:58:35Z 2013-02 2012-09 Article http://purl.org/eprint/type/JournalArticle 0146-9592 1539-4794 http://hdl.handle.net/1721.1/86956 Qin, Qi, Ningren Han, Tsung-Yu Kao, John L. Reno, and Qing Hu. “Effective Mode Selector for Tunable Terahertz Wire Lasers.” Optics Letters 38, no. 4 (February 15, 2013): 407. © 2013 Optical Society of America. https://orcid.org/0000-0002-5100-3709 https://orcid.org/0000-0003-1982-4053 https://orcid.org/0000-0003-4513-8575 en_US http://dx.doi.org/10.1364/OL.38.000407 Optics Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Optical Society of America MIT web domain |
| spellingShingle | Qin, Qi Han, Ningren Kao, Tsung-Yu Reno, John L. Hu, Qing Kao, Tsung-Yu Effective mode selector for tunable terahertz wire lasers |
| title | Effective mode selector for tunable terahertz wire lasers |
| title_full | Effective mode selector for tunable terahertz wire lasers |
| title_fullStr | Effective mode selector for tunable terahertz wire lasers |
| title_full_unstemmed | Effective mode selector for tunable terahertz wire lasers |
| title_short | Effective mode selector for tunable terahertz wire lasers |
| title_sort | effective mode selector for tunable terahertz wire lasers |
| url | http://hdl.handle.net/1721.1/86956 https://orcid.org/0000-0002-5100-3709 https://orcid.org/0000-0003-1982-4053 https://orcid.org/0000-0003-4513-8575 |
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