| dc.contributor.author | Ren, Y. | |
| dc.contributor.author | Hovenier, J. N. | |
| dc.contributor.author | Cui, M. | |
| dc.contributor.author | Hayton, D. J. | |
| dc.contributor.author | Gao, J. R. | |
| dc.contributor.author | Klapwijk, T. M. | |
| dc.contributor.author | Shi, S. C. | |
| dc.contributor.author | Reno, J. L. | |
| dc.contributor.author | Kao, Tsung-Yu | |
| dc.contributor.author | Hu, Qing | |
| dc.date.accessioned | 2014-05-01T19:56:11Z | |
| dc.date.available | 2014-05-01T19:56:11Z | |
| dc.date.issued | 2012-01 | |
| dc.date.submitted | 2011-11 | |
| dc.identifier.issn | 00036951 | |
| dc.identifier.issn | 1077-3118 | |
| dc.identifier.uri | http://hdl.handle.net/1721.1/86350 | |
| dc.description.abstract | We report frequency locking of two 3.5-THz third-order distributed feedback (DFB)quantum cascade lasers(QCLs) by using methanol molecular absorption lines, a proportional-integral-derivative controller, and a NbN bolometer. We show that the free-running linewidths of the QCLs are dependent on the electrical and temperature tuning coefficients. For both lasers, the frequency locking induces a similar linewidth reduction factor, whereby the narrowest locked linewidth is below 18 kHz with a Gaussian-like shape. The linewidth reduction factor and the ultimate linewidth correspond to the measured frequency noise power spectral density. | en_US |
| dc.description.sponsorship | United States. National Aeronautics and Space Administration | en_US |
| dc.description.sponsorship | National Science Foundation (U.S.) | en_US |
| dc.language.iso | en_US | |
| dc.publisher | American Institute of Physics (AIP) | en_US |
| dc.relation.isversionof | http://dx.doi.org/10.1063/1.3679620 | en_US |
| dc.rights | 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. | en_US |
| dc.source | MIT web domain | en_US |
| dc.title | Frequency locking of single-mode 3.5-THz quantum cascade lasers using a gas cell | en_US |
| dc.type | Article | en_US |
| dc.identifier.citation | Ren, Y., J. N. Hovenier, M. Cui, D. J. Hayton, J. R. Gao, T. M. Klapwijk, S. C. Shi, T.-Y. Kao, Q. Hu, and J. L. Reno. “Frequency Locking of Single-Mode 3.5-THz Quantum Cascade Lasers Using a Gas Cell.” Appl. Phys. Lett. 100, no. 4 (2012): 041111. © 2012 American Institute of Physics | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science | en_US |
| dc.contributor.mitauthor | Kao, Tsung-Yu | en_US |
| dc.contributor.mitauthor | Hu, Qing | en_US |
| dc.relation.journal | Applied Physics Letters | en_US |
| dc.eprint.version | Final published version | en_US |
| dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
| eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
| dspace.orderedauthors | Ren, Y.; Hovenier, J. N.; Cui, M.; Hayton, D. J.; Gao, J. R.; Klapwijk, T. M.; Shi, S. C.; Kao, T.-Y.; Hu, Q.; Reno, J. L. | en_US |
| dc.identifier.orcid | https://orcid.org/0000-0003-1982-4053 | |
| mit.license | PUBLISHER_POLICY | en_US |
| mit.metadata.status | Complete | |
